:root{--blue:#0033A0;--blue2:#0066FF;--green:#00A870;--ink:#1a1a2e}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;background:#fff;color:var(--ink)}
a{text-decoration:none;color:inherit}
.header{background:#fff;border-bottom:1px solid rgba(0,51,160,.1);position:sticky;top:0;z-index:100;box-shadow:0 2px 12px rgba(0,51,160,.06)}
.header-inner{max-width:1200px;margin:0 auto;padding:14px 24px;display:flex;justify-content:space-between;align-items:center}
.logo{display:flex;align-items:center;gap:12px}
.logo-icon{width:44px;height:44px;background:linear-gradient(135deg,var(--blue),var(--blue2));border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:22px;font-weight:700;box-shadow:0 4px 15px rgba(0,51,160,.3)}
.logo-text{font-size:24px;font-weight:800;color:var(--blue);letter-spacing:1px}
.logo-sub{font-size:12px;color:#666;margin-top:2px}
.nav{display:flex;gap:22px;align-items:center}
.nav a{color:#333;font-size:15px;font-weight:500}
.nav a:hover{color:var(--blue)}
.btn-primary{background:linear-gradient(135deg,var(--blue),var(--blue2));color:#fff;padding:10px 26px;border-radius:8px;font-weight:600;font-size:15px;display:inline-block;box-shadow:0 4px 15px rgba(0,51,160,.3);transition:.2s}
.btn-primary:hover{transform:translateY(-2px)}
.breadcrumb{max-width:1200px;margin:0 auto;padding:16px 24px;font-size:13px;color:#888}
.breadcrumb a{color:var(--blue)}
.hero{background:linear-gradient(135deg,#0033A0 0%,#0057D8 60%,#0066FF 100%);color:#fff;padding:64px 24px;text-align:center}
.hero h1{font-size:40px;font-weight:800;margin-bottom:14px}
.hero p{font-size:17px;opacity:.92;max-width:760px;margin:0 auto 22px;line-height:1.8}
.hero .badges{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:10px}
.hero .badge{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.35);padding:6px 16px;border-radius:20px;font-size:13px}
.wrap{max-width:1200px;margin:0 auto;padding:48px 24px}
.sec-title{text-align:center;font-size:30px;font-weight:800;color:var(--blue);margin-bottom:10px}
.sec-sub{text-align:center;color:#888;font-size:14px;margin-bottom:36px}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(auto-fit,minmax(340px,1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.info-card{background:#F5F9FF;border:1px solid rgba(0,51,160,.1);border-radius:14px;padding:22px}
.info-card h4{color:var(--blue);font-size:15px;margin-bottom:8px}
.info-card p,.info-card li{font-size:14px;color:#444;line-height:1.8}
.info-card ul{padding-left:18px}
.use-card{background:#fff;border:1px solid rgba(0,51,160,.12);border-radius:14px;padding:22px;box-shadow:0 4px 15px rgba(0,51,160,.06);transition:.2s}
.use-card:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(0,51,160,.12)}
.use-card .icon{font-size:30px;margin-bottom:10px}
.use-card h4{font-size:16px;color:var(--blue);margin-bottom:8px}
.use-card p{font-size:14px;color:#555;line-height:1.7}
/* 题库 */
.qb-card{background:linear-gradient(160deg,#F0F6FF,#fff);border:1px solid rgba(0,51,160,.12);border-radius:14px;padding:24px}
.qb-num{font-size:34px;font-weight:800;color:var(--blue)}
.qb-num small{font-size:14px;color:#666;font-weight:500;margin-left:4px}
.qb-card p{font-size:13.5px;color:#555;margin-top:6px;line-height:1.7}
.feat{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid rgba(0,51,160,.1);border-radius:12px;padding:16px}
.feat .f-ic{width:42px;height:42px;border-radius:10px;background:#E6F4FF;display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}
.feat h5{font-size:14.5px;color:var(--blue);margin-bottom:4px}
.feat p{font-size:13px;color:#666;line-height:1.6}
/* 证书模板样机 */
.cert-stage{display:flex;gap:32px;justify-content:center;flex-wrap:wrap;background:#EDF3FC;border-radius:16px;padding:36px 20px}
.cert{width:660px;max-width:100%;background:#fff;border-radius:6px;box-shadow:0 12px 40px rgba(0,20,80,.25);position:relative;overflow:hidden}
.cert::before{content:'';position:absolute;inset:0;border:14px solid transparent;border-image:repeating-linear-gradient(45deg,#c9a24b,#c9a24b 10px,#e6c977 10px,#e6c977 20px) 14}
.cert .c-inner{padding:34px 44px;position:relative}
.cert .c-head{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:#8a6d1f}
.cert .c-title{font-size:26px;font-weight:800;color:#b8860b;text-align:center;margin:16px 0 4px;letter-spacing:4px}
.cert .c-sub{font-size:13px;color:#666;text-align:center;margin-bottom:18px}
.cert table{width:100%;border-collapse:collapse;font-size:13px}
.cert td{border:1px solid #d8c68a;padding:7px 10px;color:#333}
.cert td.k{background:#fdf8e8;color:#8a6d1f;width:110px;font-weight:600}
.cert .c-foot{display:flex;justify-content:space-between;margin-top:18px;font-size:12.5px;color:#555;align-items:flex-end}
.cert .qr{width:64px;height:64px;background:
  conic-gradient(#111 25%,#fff 0 50%,#111 0 75%,#fff 0) 0 0/16px 16px,
  conic-gradient(#fff 25%,#111 0 50%,#fff 0 75%,#111 0) 8px 8px/16px 16px;
  background-blend-mode:normal;border:4px solid #fff;outline:1px solid #ddd;position:relative}
.cert .qr::after{content:'扫码验真';position:absolute;bottom:-18px;left:50%;transform:translateX(-50%);font-size:10px;color:#999;white-space:nowrap}
.cert .seal{position:absolute;right:52px;bottom:44px;width:110px;height:110px;border:3px solid rgba(200,30,30,.75);border-radius:50%;display:flex;align-items:center;justify-content:center;text-align:center;color:rgba(200,30,30,.8);font-size:12px;font-weight:700;transform:rotate(-14deg);line-height:1.5;opacity:.85}
.cert.dark{background:linear-gradient(150deg,#0d2a63,#123a8f)}
.cert.dark .c-title{color:#ffd76a}
.cert.dark td{border-color:rgba(255,255,255,.25);color:#fff}
.cert.dark td.k{background:rgba(255,255,255,.1);color:#ffd76a}
.cert.dark .c-head{color:rgba(255,255,255,.6)}
.cert.dark .c-sub,.cert.dark .c-foot{color:rgba(255,255,255,.75)}
.cert-note{max-width:980px;margin:22px auto 0;font-size:12.5px;color:#888;text-align:center;line-height:1.8}
/* 微信聊天 */
.chat-row{display:flex;gap:26px;justify-content:center;flex-wrap:wrap}
.phone{width:340px;background:#EDEDED;border-radius:22px;overflow:hidden;box-shadow:0 16px 40px rgba(0,20,80,.22);border:1px solid #d5d5d5}
.ph-head{background:#EDEDED;border-bottom:1px solid #d9d9d9;padding:12px 14px;display:flex;align-items:center;gap:8px;position:sticky;top:0}
.ph-head .back{color:#333;font-size:18px}
.ph-head .name{flex:1;text-align:center;font-size:15px;font-weight:600;color:#111}
.ph-head .more{color:#333;font-size:16px;letter-spacing:2px}
.ph-body{padding:12px 12px 16px;display:flex;flex-direction:column;gap:12px;min-height:300px}
.msg-time{text-align:center;font-size:11px;color:#9a9a9a}
.msg{display:flex;gap:8px;align-items:flex-start}
.msg .ava{width:34px;height:34px;border-radius:6px;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:16px;color:#fff;font-weight:700}
.msg .bubble{background:#fff;border-radius:8px;padding:10px 12px;font-size:13.5px;color:#111;line-height:1.65;max-width:220px;box-shadow:0 1px 2px rgba(0,0,0,.06);position:relative}
.msg.right{flex-direction:row-reverse}
.msg.right .bubble{background:#95EC69}
.msg.right .ava{background:#5B7BD5}
.msg .bubble img.emoji{font-style:normal}
.redpacket{background:#E8B54A!important;color:#fff!important;display:flex;gap:8px;align-items:center}
/* 查询链接 */
.q-card{background:#fff;border:1px solid rgba(0,51,160,.12);border-radius:14px;padding:20px;box-shadow:0 4px 15px rgba(0,51,160,.06);display:flex;flex-direction:column;gap:8px}
.q-card .q-tag{font-size:11px;padding:2px 10px;border-radius:10px;background:#E6F4FF;color:var(--blue);width:fit-content;font-weight:600}
.q-card h4{font-size:15.5px;color:var(--ink)}
.q-card .url{font-size:12px;color:#2c7be5;word-break:break-all}
.q-card p{font-size:12.5px;color:#777;line-height:1.6}
.q-card .go{margin-top:auto;font-size:13px;color:var(--blue);font-weight:600}
.notice{max-width:1200px;margin:0 auto 10px;background:#FFF9EC;border:1px solid #F0DFAE;color:#8a6d1f;border-radius:10px;padding:10px 18px;font-size:12.5px;line-height:1.7}
/* CTA */
.cta{background:linear-gradient(135deg,#0033A0,#0066FF);border-radius:18px;color:#fff;padding:36px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.cta h3{font-size:24px;font-weight:800;margin-bottom:6px}
.cta p{font-size:14px;opacity:.85}
.cta .btns{display:flex;gap:14px;flex-wrap:wrap}
.cta a{padding:12px 28px;border-radius:10px;font-weight:700;font-size:15px}
.cta .b1{background:#fff;color:var(--blue)}
.cta .b2{border:2px solid rgba(255,255,255,.7);color:#fff}
footer{background:#0a1628;color:rgba(255,255,255,.7);padding:40px 24px;text-align:center;font-size:14px;line-height:2}
footer .phone{color:#4DA6FF;font-size:20px;font-weight:700}
footer a{color:#4DA6FF}
footer .links{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:8px;font-size:13px}
/* platform 页扩展 */
.svc-card{background:#fff;border:1px solid rgba(0,51,160,.1);border-radius:14px;padding:24px;box-shadow:0 4px 15px rgba(0,51,160,.07)}
.svc-card .icon{width:52px;height:52px;border-radius:12px;background:#E6F4FF;display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:12px}
.svc-card h4{font-size:17px;color:var(--blue);margin-bottom:8px}
.svc-card p{font-size:13.5px;color:#555;line-height:1.7}
.exam-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 4px 15px rgba(0,51,160,.08);border:1px solid rgba(0,51,160,.1);transition:.2s;display:block;position:relative}
.exam-card:hover{transform:translateY(-3px);box-shadow:0 10px 28px rgba(0,51,160,.16)}
.exam-card h3{font-size:18px;font-weight:700;color:var(--blue);margin-bottom:8px}
.exam-card p{font-size:14px;color:#666;line-height:1.6}
.exam-card .count{display:inline-block;margin-top:12px;padding:4px 12px;background:#E6F4FF;color:var(--blue);border-radius:20px;font-size:13px;font-weight:600}
.exam-card .more-link{position:absolute;top:20px;right:20px;font-size:12.5px;color:#2c7be5;font-weight:600}
.flow{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}
.flow-item{background:#fff;border-radius:12px;padding:20px;border:1px solid rgba(0,51,160,.1);text-align:center}
.flow-item .step{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--blue2));color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;margin:0 auto 10px}
.flow-item h5{font-size:15px;color:var(--blue);margin-bottom:6px}
.flow-item p{font-size:12.5px;color:#666;line-height:1.6}
@media(max-width:768px){.hero h1{font-size:28px}.nav{display:none}.wrap{padding:32px 16px}.cert .c-inner{padding:24px}.cert{width:100%}}