/* ==========================================================
   卡密兑换页 · 蓝色系
   ========================================================== */
:root{
  --blue:#2563eb;--blue-2:#1d4ed8;--blue-3:#3b82f6;
  --grad:linear-gradient(135deg,#3b82f6 0%,#2563eb 60%,#1d4ed8 100%);
  --line:#e5e9f2;--txt:#10182a;--txt2:#5b6478;--txt3:#9aa3b5;
  --r-lg:18px;--r-md:13px;
  --shadow:0 2px 6px rgba(16,42,100,.06),0 12px 32px rgba(16,42,100,.08);
  /* FONT-V1：思源黑体 */
  --font-sans:"Noto Sans SC","Source Han Sans SC","思源黑体","Noto Sans CJK SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
body{
  font-family:var(--font-sans);
  color:var(--txt);background:#f4f7fd;font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased;
  min-height:100vh;
}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input{font-family:inherit}
a{color:inherit;text-decoration:none}
[hidden]{display:none!important}

/* 顶栏 */
.r-topbar{
  height:58px;display:flex;align-items:center;justify-content:space-between;
  padding:0 20px;background:#fff;border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:30;
}
.r-back{display:flex;align-items:center;gap:6px;font-size:13.5px;color:var(--txt2);font-weight:500}
.r-back:hover{color:var(--blue)}
.r-user{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--txt2)}
.r-user b{color:var(--blue)}

/* 主体 */
.r-wrap{max-width:660px;margin:0 auto;padding:26px 16px 50px}

/* Hero 卡 */
.r-hero{
  position:relative;background:#fff;border-radius:22px;padding:30px 26px 26px;
  box-shadow:var(--shadow);overflow:hidden;margin-bottom:20px;
}
.r-hero-glow{
  position:absolute;top:-90px;right:-70px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(59,130,246,.16),transparent 68%);
}
.r-hero h1{font-size:22px;font-weight:800;letter-spacing:.3px}
.r-hero-sub{font-size:13px;color:var(--txt2);margin:6px 0 20px}
.r-label{font-size:13px;font-weight:600;color:var(--txt2);display:block;margin-bottom:8px}
.r-input-row{display:flex;gap:10px}
.r-input{
  flex:1;height:50px;border:1.6px solid var(--line);border-radius:var(--r-md);
  padding:0 15px;font-size:15px;letter-spacing:.5px;outline:none;transition:.15s;background:#fff;
}
.r-input:focus{border-color:var(--blue);box-shadow:0 0 0 3.5px rgba(37,99,235,.12)}
.r-input.mb{width:100%;margin-bottom:12px}
.r-btn-ghost{
  padding:0 18px;border-radius:var(--r-md);border:1.6px solid var(--blue);color:var(--blue);
  font-weight:600;font-size:14px;transition:.15s;flex:none;
}
.r-btn-ghost:hover{background:#eff5ff}
.r-btn-ghost:disabled{opacity:.55;cursor:not-allowed}

/* 验卡结果 */
.r-check{
  margin-top:14px;background:#f2f7ff;border:1px solid #d5e4fb;border-radius:var(--r-md);
  padding:13px 15px;animation:fadeUp .2s ease;
}
.r-check.bad{background:#fef2f2;border-color:#fecaca}
@keyframes fadeUp{from{opacity:0;transform:translateY(4px)}}
.r-check-title{font-size:13.5px;font-weight:700;display:flex;align-items:center;gap:7px}
.r-check-title.good{color:#15803d}
.r-check-title.bad{color:#b91c1c}
.r-check-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:9px}
.r-meta{
  font-size:12px;background:#fff;border:1px solid #dbe7f8;border-radius:7px;padding:4px 9px;color:#3b5b86;
}
.r-check.bad .r-meta{border-color:#f3d4d4;color:#9f3b3b;background:#fff}

.r-err{font-size:12.5px;color:#dc2626;min-height:18px;margin:10px 0 4px}
.r-err.left{text-align:left;min-height:16px;margin:0 0 10px}

.r-btn-main{
  width:100%;height:50px;border-radius:var(--r-md);background:var(--grad);color:#fff;
  font-size:16px;font-weight:700;letter-spacing:2px;
  box-shadow:0 8px 22px rgba(37,99,235,.34);transition:.15s;margin-top:4px;
}
.r-btn-main:hover{filter:brightness(1.07)}
.r-btn-main:disabled{opacity:.6;cursor:not-allowed}
.r-btn-main.block{margin-top:0}
.r-tip{font-size:11.5px;color:var(--txt3);text-align:center;margin-top:11px}

/* 额度 */
.r-quota{display:flex;gap:10px;margin-top:18px}
.r-quota-item{
  flex:1;background:#f6f9ff;border:1px solid #e2ecfd;border-radius:var(--r-md);
  padding:13px 10px;text-align:center;
}
.r-quota-item b{display:block;font-size:20px;color:var(--blue);font-weight:800}
.r-quota-item span{font-size:11.5px;color:var(--txt3)}

/* 成功卡 */
.r-success{
  background:#fff;border-radius:22px;padding:32px 26px;box-shadow:var(--shadow);
  margin-bottom:20px;text-align:center;animation:fadeUp .25s ease;
}
.r-success-icon{
  width:64px;height:64px;border-radius:50%;margin:0 auto 14px;color:#fff;
  background:linear-gradient(135deg,#34d399,#059669);display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 26px rgba(5,150,105,.35);
}
.r-success h2{font-size:20px;font-weight:800}
.s-msg{font-size:13px;color:var(--txt2);margin:6px 0 18px}
.s-grid{display:flex;gap:10px;margin-bottom:18px}
.s-item{
  flex:1;background:#f6f9ff;border-radius:var(--r-md);padding:13px 8px;
}
.s-item.wide{flex:1.6}
.s-item b{display:block;font-size:15px;color:var(--blue);word-break:break-all}
.s-item span{font-size:11px;color:var(--txt3)}
.s-actions{display:flex;gap:10px}
.s-btn{
  flex:1;height:46px;border-radius:var(--r-md);display:flex;align-items:center;justify-content:center;
  font-size:14.5px;font-weight:700;
}
.s-btn.ghost{border:1.6px solid var(--line);color:var(--txt2)}
.s-btn.ghost:hover{border-color:var(--blue);color:var(--blue)}
.s-btn.main{background:var(--grad);color:#fff;box-shadow:0 8px 22px rgba(37,99,235,.3)}

/* 套餐 */
.r-plans h2,.r-faq h2{font-size:16px;font-weight:800;margin-bottom:4px}
.r-plans-sub{font-size:12.5px;color:var(--txt3);margin-bottom:14px}
.r-plan-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.r-plan{
  background:#fff;border-radius:var(--r-lg);padding:17px;box-shadow:var(--shadow);
  border:1.5px solid transparent;position:relative;transition:.15s;
}
.r-plan:hover{border-color:#bcd3fb;transform:translateY(-2px)}
.r-plan .badge{
  position:absolute;top:12px;right:12px;font-size:10.5px;color:#fff;background:var(--grad);
  border-radius:999px;padding:3px 9px;font-weight:700;
}
.r-plan h3{font-size:15.5px;font-weight:800}
.r-plan .credits{font-size:24px;font-weight:900;color:var(--blue);margin:7px 0 2px}
.r-plan .credits small{font-size:12px;color:var(--txt3);font-weight:500;margin-left:3px}
.r-plan .price{font-size:12.5px;color:var(--txt2)}
.r-plan .desc{font-size:11.5px;color:var(--txt3);margin-top:8px;line-height:1.55}
.r-skeleton{height:130px;border-radius:var(--r-lg);background:linear-gradient(90deg,#fff,#fafcff,#fff);background-size:200% 100%;animation:sk 1.2s infinite}
@keyframes sk{to{background-position:-200% 0}}

/* FAQ */
.r-faq{background:#fff;border-radius:var(--r-lg);padding:20px;box-shadow:var(--shadow);margin-top:20px}
.r-faq details{border-bottom:1px solid #f0f3f9;padding:11px 0}
.r-faq details:last-child{border:none}
.r-faq summary{font-size:13.5px;font-weight:600;cursor:pointer;list-style:none;position:relative;padding-right:22px}
.r-faq summary::after{content:'+';position:absolute;right:2px;color:var(--txt3);font-weight:700}
.r-faq details[open] summary::after{content:'−'}
.r-faq p{font-size:12.5px;color:var(--txt2);margin-top:8px;line-height:1.7}

/* 登录弹窗 */
.r-mask{
  position:fixed;inset:0;background:rgba(10,20,45,.5);backdrop-filter:blur(3px);
  z-index:60;display:flex;align-items:center;justify-content:center;padding:20px;
}
.r-modal{
  width:360px;max-width:100%;background:#fff;border-radius:18px;padding:24px;
  position:relative;box-shadow:0 24px 60px rgba(10,25,60,.3);animation:fadeUp .18s ease;
}
.r-x{position:absolute;top:12px;right:14px;font-size:20px;color:var(--txt3);width:30px;height:30px;border-radius:8px}
.r-x:hover{background:#f2f4f8;color:var(--txt)}
.r-modal h3{font-size:18px;font-weight:800}
.r-modal-sub{font-size:12px;color:var(--txt3);margin:5px 0 16px}
.r-switch{font-size:12px;color:var(--txt3);text-align:center;margin-top:14px}
.r-switch a{color:var(--blue);font-weight:600}

/* Toast */
.r-toast{
  position:fixed;left:50%;bottom:36px;transform:translateX(-50%);z-index:70;
  background:#10182a;color:#fff;font-size:13.5px;padding:11px 18px;border-radius:12px;
  box-shadow:0 10px 30px rgba(0,0,0,.25);max-width:88vw;animation:fadeUp .2s ease;
}
.r-toast.err{background:#b91c1c}
.r-toast.ok{background:#047857}
.spin{animation:rot 1s linear infinite;display:inline-block}
@keyframes rot{to{transform:rotate(360deg)}}

@media (max-width:520px){
  .r-plan-grid{grid-template-columns:1fr}
  .r-hero{padding:24px 18px}
  .s-grid{flex-wrap:wrap}
  .s-item{flex:1 1 40%}
}