:root{
    --brand:#16224d;
    --brand-2:#22326b;
    --heading:#f3f6ff;
    --accent:#e8c34a;
    --accent-soft:rgba(232,195,74,.12);
    --ink:#e7ebf8;
    --muted:#9aa6cc;
    --line:rgba(255,255,255,.10);
    --bg:#0e1430;
    --bg-soft:#141b3d;
    --surface:#19224a;
    --surface-2:#222d5c;
    --radius:14px;
    --shadow:0 8px 24px rgba(0,0,0,.45);
    --shadow-hover:0 14px 34px rgba(0,0,0,.55);
    --maxw:1180px;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
    color:var(--ink);background:var(--bg);line-height:1.7;font-size:15px;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.kp-container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px;}

/* ===== Header ===== */
.kp-header{
    position:sticky;top:0;z-index:100;
    background:rgba(14,20,48,.85);
    backdrop-filter:saturate(160%) blur(10px);
    border-bottom:1px solid var(--line);
}
.kp-header-inner{
    max-width:var(--maxw);margin:0 auto;padding:0 20px;
    height:66px;display:flex;align-items:center;justify-content:space-between;
}
.kp-logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:21px;color:var(--heading);letter-spacing:.5px;}
.kp-logo .kp-mark{
    width:34px;height:34px;border-radius:9px;
    background:linear-gradient(135deg,var(--brand),var(--brand-2));
    color:var(--accent);display:flex;align-items:center;justify-content:center;
    font-size:18px;font-weight:900;
}
.kp-nav{display:flex;align-items:center;gap:28px;}
.kp-nav a{font-size:15px;color:rgba(231,235,248,.72);font-weight:500;position:relative;padding:6px 0;transition:color .2s;}
.kp-nav a:hover{color:var(--accent);}
.kp-nav a.active{color:var(--heading);font-weight:700;}
.kp-nav a.active::after{
    content:"";position:absolute;left:0;right:0;bottom:-2px;height:3px;border-radius:3px;
    background:linear-gradient(90deg,var(--accent),#f3d574);
}
.kp-lang{font-size:13px;color:var(--muted);border:1px solid var(--line);padding:5px 12px;border-radius:20px;cursor:pointer;}
.kp-lang:hover{color:var(--heading);border-color:var(--accent);}

/* ===== Main ===== */
.kp-main{display:block;}

/* ===== Hero ===== */
.kp-hero{
    background:radial-gradient(1200px 500px at 70% -10%,#2c417e 0%,transparent 60%),
               linear-gradient(135deg,var(--brand) 0%,var(--brand-2) 100%);
    color:#fff;padding:90px 0 100px;text-align:center;position:relative;overflow:hidden;
}
.kp-hero::after{
    content:"";position:absolute;inset:0;
    background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);
    background-size:22px 22px;opacity:.6;
}
.kp-hero .kp-container{position:relative;z-index:1;}
.kp-hero .kp-badge{
    display:inline-block;font-size:13px;letter-spacing:2px;color:var(--accent);
    border:1px solid rgba(232,195,74,.45);padding:6px 16px;border-radius:30px;margin-bottom:22px;
}
.kp-hero h1{font-size:44px;line-height:1.25;margin:0 0 18px;font-weight:800;letter-spacing:1px;}
.kp-hero p{font-size:18px;color:rgba(255,255,255,.85);margin:0 auto 34px;max-width:640px;}
.kp-hero .kp-cta{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}
.kp-btn{
    display:inline-flex;align-items:center;gap:8px;padding:13px 30px;border-radius:30px;
    font-size:15px;font-weight:700;cursor:pointer;transition:transform .15s,box-shadow .2s,border-color .2s;
    border:1px solid transparent;
}
.kp-btn-primary{background:linear-gradient(135deg,var(--accent),#f3d574);color:#2a2400;box-shadow:0 10px 24px rgba(232,195,74,.30);}
.kp-btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(232,195,74,.40);}
.kp-btn-ghost{background:transparent;border-color:rgba(255,255,255,.45);color:#fff;}
.kp-btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.10);}

/* ===== Sections ===== */
.kp-section{padding:74px 0;}
.kp-section--soft{background:var(--bg-soft);}
.kp-section-head{text-align:center;max-width:720px;margin:0 auto 48px;}
.kp-section-head .kp-eyebrow{color:var(--accent);font-weight:700;letter-spacing:2px;font-size:13px;text-transform:uppercase;}
.kp-section-head h2{font-size:32px;margin:10px 0 14px;color:var(--heading);font-weight:800;}
.kp-section-head p{color:var(--muted);font-size:16px;margin:0;}

.kp-intro{font-size:17px;color:#c3cbe6;text-align:center;max-width:820px;margin:0 auto;line-height:1.9;}

.kp-grid{display:grid;gap:24px;}
.kp-grid--3{grid-template-columns:repeat(3,1fr);}
.kp-grid--4{grid-template-columns:repeat(4,1fr);}
.kp-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
    padding:34px 28px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s,border-color .2s;border-top:3px solid transparent;
}
.kp-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-top-color:var(--accent);}
.kp-card .kp-icon{
    width:56px;height:56px;border-radius:14px;background:var(--accent-soft);color:var(--accent);
    display:flex;align-items:center;justify-content:center;font-size:26px;font-weight:800;margin-bottom:18px;
}
.kp-card .kp-icon svg{width:26px;height:26px;display:block;}
.kp-card h3{margin:0 0 10px;font-size:19px;color:var(--heading);}
.kp-card p{margin:0;color:var(--muted);font-size:14.5px;}

.kp-brands{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:36px;}
.kp-brands span{
    border:1px solid var(--line);background:rgba(255,255,255,.04);border-radius:30px;padding:8px 22px;
    font-weight:700;color:var(--heading);letter-spacing:1px;
}

/* ===== Footer ===== */
.kp-footer{background:#0a1024;color:rgba(231,235,248,.7);padding:56px 0 28px;margin-top:0;}
.kp-footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;}
.kp-footer .kp-f-logo{color:#fff;font-size:22px;font-weight:800;display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.kp-footer .kp-f-logo .kp-mark{width:32px;height:32px;border-radius:8px;background:linear-gradient(135deg,var(--brand-2),#33468f);color:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:900;}
.kp-footer .kp-f-logo .kp-f-img{height:32px;width:auto;display:block;object-fit:contain;}
.kp-footer p{font-size:14px;line-height:1.9;max-width:340px;}
.kp-footer h4{color:#fff;font-size:16px;margin:0 0 16px;}
.kp-footer ul{list-style:none;padding:0;margin:0;}
.kp-footer ul li{margin-bottom:10px;}
.kp-footer ul li a{color:rgba(231,235,248,.6);font-size:14px;transition:color .2s;}
.kp-footer ul li a:hover{color:var(--accent);}
.kp-footer-bottom{border-top:1px solid var(--line);margin-top:36px;padding-top:20px;font-size:13px;color:rgba(231,235,248,.4);text-align:center;}

/* ===== Query page ===== */
.kp-query-wrap{padding:60px 0;}
.kp-query-head{text-align:center;margin-bottom:40px;}
.kp-query-head h1{font-size:36px;color:var(--heading);margin:0 0 12px;font-weight:800;}
.kp-query-head p{color:var(--muted);font-size:16px;margin:0;}
.kp-query-box{
    max-width:720px;margin:0 auto;background:var(--surface);border:1px solid var(--line);border-radius:18px;
    box-shadow:var(--shadow);padding:36px;
}
.kp-query-box label{display:block;font-weight:700;color:var(--heading);margin-bottom:10px;font-size:15px;}
.kp-input{
    width:100%;padding:15px 18px;border:1px solid var(--line);border-radius:12px;font-size:16px;
    outline:none;background:rgba(255,255,255,.04);color:var(--ink);transition:border-color .2s,box-shadow .2s;
}
.kp-input::placeholder{color:var(--muted);}
.kp-input:focus{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft);}
.kp-query-actions{display:flex;gap:14px;margin-top:20px;}
.kp-query-actions .kp-btn{flex:1;justify-content:center;}
.kp-query-hint{margin-top:16px;font-size:13.5px;color:var(--muted);text-align:center;line-height:1.8;}
.kp-query-brands{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:10px;}
.kp-query-brands span{font-size:13px;color:var(--accent);background:var(--accent-soft);padding:4px 14px;border-radius:20px;}

.kp-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:56px;}
.kp-step{text-align:center;}
.kp-step .kp-step-num{
    width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;
    display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;margin:0 auto 14px;
    position:relative;
}
.kp-step:not(:last-child) .kp-step-num::after{
    content:"";position:absolute;left:100%;top:50%;width:calc(100% + 20px);height:2px;background:var(--line);
}
.kp-step h4{margin:0 0 6px;color:var(--heading);font-size:16px;}
.kp-step p{margin:0;color:var(--muted);font-size:13.5px;}

/* ===== Modal ===== */
.kp-modal-mask{
    position:fixed;inset:0;background:rgba(6,10,24,.7);display:none;align-items:center;justify-content:center;
    z-index:999;padding:20px;
}
.kp-modal-mask.show{display:flex;}
.kp-modal{
    background:var(--surface);border:1px solid var(--line);border-radius:18px;max-width:560px;width:100%;overflow:hidden;
    box-shadow:0 30px 60px rgba(0,0,0,.5);animation:kpPop .25s ease;
}
@keyframes kpPop{from{transform:translateY(20px) scale(.96);opacity:0;}to{transform:none;opacity:1;}}
.kp-modal-head{
    display:flex;align-items:center;justify-content:space-between;padding:18px 22px;
    background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;
}
.kp-modal-head h3{margin:0;font-size:18px;}
.kp-modal-close{cursor:pointer;font-size:24px;line-height:1;color:#fff;opacity:.85;}
.kp-modal-close:hover{opacity:1;}
.kp-card-img{
    position:relative;background:linear-gradient(135deg,#222d5c,#161e44);aspect-ratio:4/3;
    display:flex;align-items:center;justify-content:center;color:#9aa6cc;font-size:15px;
}
.kp-card-img .kp-img-face{display:none;text-align:center;}
.kp-card-img .kp-img-face.active{display:block;}
.kp-card-img .kp-card-mock{
    width:170px;height:240px;border-radius:12px;background:linear-gradient(160deg,#243054,#161e40);
    border:1px solid rgba(255,255,255,.12);box-shadow:0 12px 24px rgba(0,0,0,.4);display:flex;flex-direction:column;
    align-items:center;justify-content:center;gap:8px;color:var(--heading);font-weight:800;
}
.kp-card-img .kp-card-mock small{font-weight:500;color:var(--muted);font-size:12px;}
.kp-img-switch{
    position:absolute;top:50%;transform:translateY(-50%);width:40px;height:40px;border-radius:50%;
    background:rgba(255,255,255,.92);border:none;cursor:pointer;font-size:20px;color:var(--brand);
    box-shadow:0 4px 10px rgba(0,0,0,.3);display:flex;align-items:center;justify-content:center;
}
.kp-img-switch.prev{left:14px;}
.kp-img-switch.next{right:14px;}
.kp-modal-body{padding:22px;}
.kp-info-list{list-style:none;margin:0;padding:0;}
.kp-info-list li{display:flex;justify-content:space-between;padding:11px 0;border-bottom:1px dashed var(--line);font-size:15px;}
.kp-info-list li:last-child{border-bottom:none;}
.kp-info-list .kp-k{color:var(--muted);}
.kp-info-list .kp-v{color:var(--ink);font-weight:700;}
.kp-status{display:inline-block;background:rgba(74,222,128,.14);color:#5ee39a;font-weight:700;padding:3px 12px;border-radius:20px;font-size:13px;}

@media (max-width:980px){
    .kp-grid--3{grid-template-columns:repeat(2,1fr);}
    .kp-grid--4{grid-template-columns:repeat(2,1fr);}
    .kp-steps{grid-template-columns:repeat(2,1fr);row-gap:34px;}
    .kp-footer-grid{grid-template-columns:1fr 1fr;}
}

/* 手机竖屏 / 窄屏适配 */
@media (max-width:640px){
    .kp-container{padding:0 16px;}

    .kp-header-inner{height:56px;padding:0 16px;}
    .kp-logo{font-size:18px;gap:8px;}
    .kp-logo .kp-mark{width:30px;height:30px;font-size:16px;}
    .kp-nav{gap:14px;}
    .kp-nav a{font-size:14px;}
    .kp-lang{padding:4px 10px;font-size:12px;}

    .kp-hero{padding:56px 0 64px;}
    .kp-hero h1{font-size:30px;}
    .kp-hero p{font-size:15px;margin-bottom:26px;}
    .kp-btn{padding:12px 24px;font-size:14px;}

    .kp-section{padding:52px 0;}
    .kp-section-head{margin-bottom:32px;}
    .kp-section-head h2{font-size:25px;}
    .kp-section-head p{font-size:14px;}
    .kp-intro{font-size:15px;padding:0 4px;}
    .kp-grid--3,.kp-grid--4{grid-template-columns:1fr;gap:16px;}
    .kp-card{padding:26px 20px;}
    .kp-card h3{font-size:17px;}

    .kp-footer{padding:44px 0 24px;}
    .kp-footer-grid{grid-template-columns:1fr;gap:26px;}

    .kp-query-head h1{font-size:28px;}
    .kp-query-box{padding:26px 18px;}
    .kp-query-actions{flex-wrap:wrap;}
    .kp-query-actions .kp-btn{flex:1 1 100%;}

    .kp-modal{max-width:100%;}
    .kp-modal-head{padding:15px 18px;}
    .kp-modal-body{padding:18px;}
}

/* 语言切换（右上角下拉） */
.kp-lang-switch{position:relative;display:inline-block;}
/* 透明桥接：鼠标从按钮移到菜单途中经过的缝隙，避免丢失点击/悬停 */
.kp-lang-switch:after{content:"";position:absolute;left:0;right:0;top:100%;height:12px;}
.kp-lang-switch .kp-lang-current{cursor:pointer;font-size:13px;color:var(--muted);border:1px solid var(--line);padding:5px 12px;border-radius:20px;user-select:none;transition:color .2s,border-color .2s;}
.kp-lang-switch .kp-lang-current:hover{color:var(--heading);border-color:var(--accent);}
.kp-lang-switch.open .kp-lang-current{color:var(--heading);border-color:var(--accent);}
.kp-lang-menu{position:absolute;right:0;top:100%;margin-top:8px;min-width:120px;background:var(--surface);border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);overflow:hidden;display:none;z-index:50;}
.kp-lang-switch.open .kp-lang-menu{display:block;}
.kp-lang-menu a{display:block;padding:9px 14px;font-size:13px;color:var(--ink);transition:background .2s,color .2s;}
.kp-lang-menu a:hover{background:var(--accent-soft);color:var(--accent);}
.kp-lang-menu a.active{color:var(--accent);font-weight:700;}

/* 头部 Logo 图片 */
.kp-logo .kp-logo-img{height:34px;width:auto;display:block;object-fit:contain;}
@media (max-width:768px){.kp-logo .kp-logo-img{height:30px;}}

/* 查询弹窗：图片填充与提示 */
.kp-img-face{display:none;align-items:center;justify-content:center;}
.kp-img-face.active{display:flex;}
.kp-img-face img{max-width:100%;max-height:320px;object-fit:contain;border-radius:10px;}
.kp-result-msg{display:none;margin-top:14px;padding:11px 16px;border-radius:10px;background:rgba(230,90,90,.12);border:1px solid rgba(230,90,90,.35);color:#ff9c9c;font-size:14px;line-height:1.5;text-align:center;}