/* 证书查询系统 - 官网风格 (恩启青 #0e7490) */
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,sans-serif;background:#f8fafc;color:#1e293b;min-height:100vh;display:flex;justify-content:center;padding:0}
.main-container{width:100%;max-width:760px;padding:32px 16px 48px;margin:0 auto}
/* 主卡片 */
.card{background:#fff;border:1px solid #e2e8f0;border-radius:14px;box-shadow:0 4px 24px rgba(15,23,42,.06);padding:36px 32px}
.card-head{margin-bottom:24px}
.card-head h1{font-size:1.45em;color:#0f172a;font-weight:700;margin-bottom:8px}
.card-head .subtitle{font-size:0.95em;color:#64748b;line-height:1.7}
/* 选择 + 查询按钮 */
.select-group{display:flex;gap:12px;align-items:center}
.cert-select{flex:1;min-width:0;padding:12px 14px;border:1.5px solid #e2e8f0;border-radius:10px;font-size:0.95em;color:#1e293b;background:#fff url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2364748b' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 14px center;outline:none;transition:border-color .2s,box-shadow .2s;appearance:none;-webkit-appearance:none;cursor:pointer;padding-right:38px}
.cert-select:focus{border-color:#0e7490;box-shadow:0 0 0 3px rgba(14,116,144,.12)}
.query-button{padding:12px 34px;background:#0e7490;color:#fff;border:none;border-radius:10px;font-size:0.95em;font-weight:600;cursor:pointer;transition:background .2s;white-space:nowrap;display:inline-flex;align-items:center;gap:7px}
.query-button:hover{background:#0c5e75}
.query-button:disabled{opacity:.6;cursor:not-allowed}
/* 步骤提示 */
.steps{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:22px;padding-top:18px;border-top:1px solid #f1f5f9}
.steps span{font-size:0.8em;color:#64748b;padding:4px 12px;background:#f8fafc;border:1px solid #eef2f7;border-radius:99px}
.steps i{color:#cbd5e1;font-style:normal;font-size:0.85em}
/* 错误提示 */
.input-error{font-size:0.82em;color:#e53e3e;margin-top:6px;line-height:1.4;display:block}
#certError{min-height:1.4em;margin-top:8px}
#formError{margin:4px 0 0;min-height:0}
/* 蒙层 */
.modal-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(15,23,42,.55);z-index:2000;justify-content:center;align-items:center;padding:20px}
.modal-overlay.show{display:flex}
.modal-container{background:#fff;border-radius:14px;width:100%;max-width:460px;box-shadow:0 24px 64px rgba(15,23,42,.18);overflow:hidden;transition:border-color .2s}
.modal-container.small{max-width:380px}
.modal-container.error{border:2px solid #e53e3e}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:18px 24px 14px;border-bottom:1px solid #f1f5f9}
.modal-header h2{font-size:1.1em;color:#0f172a;font-weight:600}
.close-btn{background:none;border:none;font-size:1.05em;color:#94a3b8;cursor:pointer;padding:4px 6px;border-radius:6px;transition:color .2s,background .2s}
.close-btn:hover{color:#1e293b;background:#f1f5f9}
.modal-body{padding:20px 24px 24px}
.certificate-info{background:#f0f9ff;border:1px solid #bae6fd;border-radius:10px;padding:10px 14px;margin-bottom:8px}
.cert-item{display:flex;align-items:center;gap:10px;font-size:0.95em;color:#0369a1;font-weight:600}
.cert-item i{color:#0e7490}
/* 表单 */
.query-form .form-group{margin-bottom:16px}
.query-form label{display:block;font-size:0.85em;color:#475569;font-weight:500;margin-bottom:6px}
.input-wrapper input{width:100%;padding:11px 13px;border:1.5px solid #e2e8f0;border-radius:9px;font-size:0.95em;color:#1e293b;outline:none;transition:border-color .2s,box-shadow .2s;background:#fff}
.input-wrapper input:focus{border-color:#0e7490;box-shadow:0 0 0 3px rgba(14,116,144,.1)}
.input-wrapper.error input{border-color:#e53e3e;box-shadow:0 0 0 3px rgba(229,62,62,.08)}
.input-wrapper input.error{border-color:#e53e3e}
.form-actions{display:flex;gap:12px;margin-top:22px}
.cancel-btn{flex:1;padding:12px 0;background:#f1f5f9;color:#475569;border:none;border-radius:10px;font-size:0.95em;font-weight:600;cursor:pointer;transition:background .2s}
.cancel-btn:hover{background:#e2e8f0}
.submit-btn{flex:1;padding:12px 0;background:#0e7490;color:#fff;border:none;border-radius:10px;font-size:0.95em;font-weight:600;cursor:pointer;transition:background .2s;display:inline-flex;align-items:center;justify-content:center;gap:7px}
.submit-btn:hover{background:#0c5e75}
.submit-btn:disabled{opacity:.6;cursor:not-allowed}
/* 验证码 */
.captcha-wrapper{display:flex;gap:10px;align-items:center;margin-bottom:12px}
.captcha-wrapper canvas{border:1.5px solid #e2e8f0;border-radius:8px;background:#f0f9ff;cursor:pointer}
.refresh-captcha{width:42px;height:42px;background:#f1f5f9;border:1.5px solid #e2e8f0;border-radius:8px;color:#64748b;cursor:pointer;font-size:0.95em;transition:all .2s}
.refresh-captcha:hover{color:#0e7490;border-color:#0e7490;background:#f0f9ff}
/* 结果区 */
.results-container{display:none;margin-top:28px;background:#fff;border:1px solid #e2e8f0;border-radius:14px;padding:24px}
.results-container.show{display:block}
.cert-results{display:flex;flex-direction:column;gap:4px}
.results-title{font-size:1.05em;color:#0f172a;font-weight:600;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid #f1f5f9}
.cert-card{display:flex;gap:14px;align-items:center;padding:10px;border-radius:10px;transition:background .15s}
.cert-card:hover{background:#f8fafc}
.cert-card + .cert-card{border-top:1px solid #f1f5f9;border-radius:0}
.cert-thumb{width:88px;height:66px;object-fit:cover;border-radius:8px;cursor:pointer;border:1px solid #eef2f7;transition:opacity .2s}
.cert-thumb:hover{opacity:.85}
.cert-body{flex:1}
.cert-name{font-size:0.98em;color:#1e293b;font-weight:500;line-height:1.5}
.cert-name i{color:#0e7490;font-style:normal;font-weight:600}
/* 预览 */
.preview-container{position:relative;max-width:92vw;max-height:90vh;text-align:center}
.preview-image{max-width:100%;max-height:85vh;border-radius:6px;box-shadow:0 24px 64px rgba(15,23,42,.35)}
.preview-close{position:absolute;top:-14px;right:-14px;width:36px;height:36px;border-radius:50%;background:#fff;border:1px solid #e2e8f0;color:#475569;cursor:pointer;font-size:0.95em;box-shadow:0 4px 12px rgba(15,23,42,.12);z-index:2;transition:all .2s}
.preview-close:hover{background:#e53e3e;color:#fff;border-color:#e53e3e}
.download-btn{position:absolute;bottom:-14px;right:-14px;width:36px;height:36px;border-radius:50%;background:#0e7490;color:#fff;display:flex;align-items:center;justify-content:center;text-decoration:none;box-shadow:0 4px 12px rgba(14,116,144,.35);z-index:2;transition:background .2s}
.download-btn:hover{background:#0c5e75}
/* 移动端 */
@media(max-width:640px){
.main-container{padding:16px 12px 40px}
.card{padding:22px 18px;border-radius:12px}
.card-head h1{font-size:1.25em}
.select-group{flex-direction:column;align-items:stretch;gap:10px}
.query-button{width:100%;justify-content:center;padding:13px 0}
.steps{gap:6px}
.steps span{font-size:0.75em;padding:3px 10px}
.modal-overlay{padding:12px}
.modal-container{max-width:100%}
.modal-header{padding:16px 18px 12px}
.modal-body{padding:16px 18px 20px}
.results-container{padding:16px;border-radius:12px;margin-top:20px}
.cert-thumb{width:72px;height:54px}
}