/* ============================================================
   卡片系统 · 浅色简约设计系统
   专业、清晰、易读
   ============================================================ */
*{margin:0;padding:0;box-sizing:border-box}
*::selection{background:#4f46e5;color:#fff}

:root{
    --bg:#f5f6fa;
    --panel:#ffffff;
    --panel-soft:#f8fafc;
    --panel-hover:#f1f5f9;

    --ink:#0f172a;
    --ink-2:#334155;
    --ink-3:#64748b;
    --ink-4:#94a3b8;

    --line:#e2e8f0;
    --line-2:#eef2f7;

    --primary:#4f46e5;
    --primary-600:#4338ca;
    --primary-50:#eef2ff;
    --primary-100:#e0e7ff;

    --success:#16a34a;
    --success-50:#f0fdf4;
    --warn:#d97706;
    --warn-50:#fffbeb;
    --danger:#dc2626;
    --danger-50:#fef2f2;

    --font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Roboto,"Helvetica Neue",Arial,sans-serif;
    --font-mono:ui-monospace,"SF Mono",Menlo,Consolas,"DejaVu Sans Mono",monospace;

    --radius-sm:6px;
    --radius:10px;
    --radius-lg:14px;
    --shadow-sm:0 1px 2px rgba(15,23,42,.04);
    --shadow:0 1px 3px rgba(15,23,42,.06),0 1px 2px rgba(15,23,42,.04);
    --shadow-md:0 4px 12px rgba(15,23,42,.08),0 2px 4px rgba(15,23,42,.04);
    --shadow-lg:0 16px 40px rgba(15,23,42,.12),0 4px 12px rgba(15,23,42,.06);
}

html,body{min-height:100vh}
body{
    font-family:var(--font-sans);
    font-size:14px;line-height:1.55;
    color:var(--ink);background:var(--bg);
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
}

.page{
    max-width:1280px;margin:0 auto;
    padding:24px 32px 48px;min-height:100vh;
    display:flex;flex-direction:column;
}

.topbar{
    display:flex;justify-content:space-between;align-items:center;
    padding:14px 20px;margin-bottom:20px;
    background:var(--panel);border:1px solid var(--line);
    border-radius:var(--radius);box-shadow:var(--shadow-sm);
}
.brand{display:flex;align-items:center;gap:12px}
.brand-logo{
    width:36px;height:36px;border-radius:8px;
    background:var(--primary);color:#fff;
    display:flex;align-items:center;justify-content:center;
    font-size:18px;font-weight:700;
}
.brand-text{display:flex;flex-direction:column;gap:1px}
.brand-title{font-size:15px;font-weight:600;color:var(--ink);line-height:1.2}
.brand-sub{font-size:11px;color:var(--ink-3)}

.countdown{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 12px;background:var(--primary-50);
    border:1px solid var(--primary-100);border-radius:999px;
}
.cd-label{font-size:11px;color:var(--primary-600);font-weight:500}
.cd-time{font-family:var(--font-mono);font-weight:600;color:var(--primary-600);font-size:13px}

.main{flex:1}
.loading{text-align:center;padding:80px 0;color:var(--ink-3);font-size:14px}

.grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:20px}
@media(max-width:1080px){.grid{grid-template-columns:1fr;gap:16px}}

.panel{
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:20px 20px 22px;
    box-shadow:var(--shadow-sm);
    display:flex;flex-direction:column;gap:16px;
}
.panel-head{
    display:flex;align-items:center;gap:10px;
    padding-bottom:14px;border-bottom:1px solid var(--line-2);
}
.panel-icon{
    width:28px;height:28px;border-radius:7px;
    background:var(--primary-50);color:var(--primary);
    display:flex;align-items:center;justify-content:center;
    font-size:14px;flex-shrink:0;font-weight:600;
}
.panel-title{font-size:15px;font-weight:600;color:var(--ink);letter-spacing:-.01em}

/* ---------- 信用卡视觉 ---------- */
.credit-card{
    position:relative;
    background:linear-gradient(135deg,#4f46e5 0%,#7c3aed 100%);
    border-radius:12px;
    padding:20px;min-height:180px;
    color:#fff;overflow:hidden;
    box-shadow:0 8px 24px rgba(79,70,229,.2);
}
.credit-card::before{
    content:"";position:absolute;right:-60px;top:-60px;
    width:180px;height:180px;border-radius:50%;
    background:rgba(255,255,255,.08);
}
.credit-card::after{
    content:"";position:absolute;right:-20px;bottom:-40px;
    width:120px;height:120px;border-radius:50%;
    background:rgba(255,255,255,.06);
}
.cc-brand{
    position:absolute;top:18px;right:20px;
    font-size:13px;font-weight:600;letter-spacing:1px;
    color:rgba(255,255,255,.9);z-index:1;
}
.cc-chip{
    width:36px;height:26px;border-radius:4px;
    background:linear-gradient(135deg,#fbbf24,#d97706);
    margin-bottom:18px;position:relative;z-index:1;
}
.cc-number{
    font-family:var(--font-mono);font-size:18px;font-weight:600;
    letter-spacing:2px;margin-bottom:18px;color:#fff;
    position:relative;z-index:1;
}
.cc-row{display:grid;grid-template-columns:1fr auto auto;gap:20px;align-items:end;position:relative;z-index:1}
.cc-label{font-size:9px;text-transform:uppercase;letter-spacing:1.5px;color:rgba(255,255,255,.7);margin-bottom:4px;font-weight:500}
.cc-value{font-family:var(--font-mono);font-weight:600;font-size:13px;color:#fff}

/* ---------- 字段列表 ---------- */
.field-list{display:flex;flex-direction:column;gap:10px}
.field{
    position:relative;background:var(--panel-soft);
    border:1px solid var(--line);border-radius:var(--radius-sm);
    padding:10px 80px 10px 12px;transition:background .15s ease,border-color .15s ease;
}
.field:hover{background:var(--panel-hover);border-color:#cbd5e1}
.field-label{
    font-size:11px;color:var(--ink-3);margin-bottom:3px;font-weight:500;
}
.field-value{font-size:14px;color:var(--ink);word-break:break-all;line-height:1.4;font-weight:500}
.field-value.mono{font-family:var(--font-mono);letter-spacing:.2px}
.copy-btn{
    position:absolute;right:8px;top:50%;transform:translateY(-50%);
    background:#fff;border:1px solid var(--line);color:var(--ink-2);
    padding:5px 12px;border-radius:var(--radius-sm);font-size:12px;
    font-weight:500;cursor:pointer;transition:all .15s ease;
    font-family:var(--font-sans);
}
.copy-btn:hover{background:var(--primary);border-color:var(--primary);color:#fff}
.copy-btn.copied{background:var(--success);border-color:var(--success);color:#fff}

/* ---------- 验证码区 ---------- */
.sms-box{
    background:var(--panel-soft);
    border:1px solid var(--line);border-radius:var(--radius);
    padding:16px;margin-top:4px;
}
.sms-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.sms-title{font-size:14px;font-weight:600;color:var(--ink)}
.sms-badge{
    font-size:11px;padding:3px 10px;border-radius:999px;font-weight:500;
    background:var(--panel);color:var(--ink-3);border:1px solid var(--line);
}
.sms-badge.got{background:var(--success-50);color:var(--success);border-color:#bbf7d0}
.sms-badge.locked{background:var(--danger-50);color:var(--danger);border-color:#fecaca}

.sms-code{
    font-family:var(--font-mono);font-size:30px;font-weight:700;
    letter-spacing:10px;text-align:center;padding:18px 10px;
    background:#fff;border:1px dashed var(--line);border-radius:var(--radius);
    color:var(--ink-4);margin-bottom:10px;user-select:all;
    transition:all .2s ease;
}
.sms-code.got{color:var(--primary);border-color:var(--primary);background:var(--primary-50);border-style:solid}
.sms-meta{font-size:12px;color:var(--ink-3);text-align:center;margin-bottom:12px}
.btn-refresh{
    width:100%;padding:12px;background:var(--primary);border:none;
    border-radius:var(--radius-sm);color:#fff;font-size:14px;font-weight:600;
    cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;
    transition:background .15s ease,transform .1s ease;font-family:var(--font-sans);
}
.btn-refresh:hover:not(:disabled){background:var(--primary-600)}
.btn-refresh:active:not(:disabled){transform:translateY(1px)}
.btn-refresh:disabled{opacity:.5;cursor:not-allowed}
.btn-refresh .btn-icon{font-size:15px;display:inline-block}
.btn-refresh.loading .btn-icon{animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.sms-tip{font-size:11px;color:var(--warn);margin-top:10px;text-align:center;line-height:1.5;background:var(--warn-50);padding:8px 10px;border-radius:var(--radius-sm);border:1px solid #fde68a}

/* ---------- 页脚 ---------- */
.foot{
    margin-top:32px;padding:20px 0 0;text-align:center;
    color:var(--ink-3);font-size:12px;
    border-top:1px solid var(--line-2);
}

/* ---------- Toast ---------- */
.toast{
    position:fixed;top:20px;left:50%;transform:translateX(-50%) translateY(-200%);
    background:var(--ink);color:#fff;padding:12px 20px;
    border-radius:var(--radius-sm);font-size:13px;font-weight:500;
    box-shadow:var(--shadow-lg);transition:transform .3s ease;
    z-index:1000;pointer-events:none;
}
.toast.show{transform:translateX(-50%) translateY(0)}
.toast.success{background:var(--success)}
.toast.error{background:var(--danger)}
.toast.warn{background:var(--warn)}

/* ---------- 错误状态 ---------- */
.error-state{text-align:center;padding:80px 20px;max-width:480px;margin:0 auto}
.error-state .ico{
    width:56px;height:56px;border-radius:50%;margin:0 auto 16px;
    background:var(--danger-50);color:var(--danger);
    display:flex;align-items:center;justify-content:center;
    font-size:24px;border:1px solid #fecaca;
}
.error-state h2{font-size:20px;font-weight:600;color:var(--ink);margin-bottom:8px}
.error-state p{color:var(--ink-3);font-size:14px;line-height:1.6}
.error-state p .retry-hint{margin-top:12px;display:inline-block;padding:8px 16px;background:var(--warn-50);border:1px solid #fde68a;border-radius:var(--radius-sm);color:var(--warn);font-weight:500}