/* =============================================
   mi.lakesu.top 支付站
   主题: 与 my/zc/lf 一致的蓝紫科技风 (CSS 变量体系沿用 my.lakesu.top)
   ============================================= */
:root {
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --primary-light: #eef2ff;
    --brand-deep: #1e40af;
    --brand-purple: #7c3aed;
    --bg: #f5f6fa;
    --card: #ffffff;
    --text-1: #1f2329;
    --text-2: #5b6472;
    --text-3: #9aa3b2;
    --border: #e5e8ef;
    --danger: #e5484d;
    --warn: #f5a524;
    --success: #30a46c;
    --radius: 10px;
    --shadow: 0 2px 12px rgba(31, 35, 41, .06);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { min-height: 100%; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text-1);
    font-size: 14px;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }

/* ---------- 顶部导航 ---------- */
.site-nav {
    background: #fff;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}
.site-nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.site-brand {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 8px;
}
.site-nav-links { display: flex; align-items: center; gap: 12px; }
.site-nav-link { color: var(--text-2); padding: 6px 10px; border-radius: 8px; }
.site-nav-link:hover { background: var(--primary-light); color: var(--primary); }
.site-nav-user { color: var(--text-2); font-size: 13px; }

/* ---------- 居中登录/维护页 ---------- */
.center-page { justify-content: center; }
.login-box { max-width: 400px; margin: 12vh auto; }

/* ---------- 主体 ---------- */
main.page {
    flex: 1;
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px 20px 40px;
}
.page-head { margin-bottom: 18px; }
.page-head h1 { font-size: 24px; font-weight: 800; }
.page-footer {
    text-align: center;
    color: var(--text-3);
    font-size: 12px;
    padding: 12px 20px 24px;
    border-top: 1px solid var(--border);
    margin-top: 10px;
}

/* ---------- 通用卡片/按钮/表单/标签 ---------- */
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 22px;
    margin-bottom: 18px;
}
.card-title { font-size: 17px; font-weight: 700; margin-bottom: 16px; display: flex; align-items: center; justify-content: space-between; }
.card-title .sub { font-size: 12px; color: var(--text-3); font-weight: 400; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: var(--card);
    color: var(--text-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 9px 16px;
    font-size: 14px;
    cursor: pointer;
    transition: all .15s;
    text-decoration: none;
}
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn:disabled { opacity: .6; cursor: not-allowed; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); color: #fff; }
.btn-block { width: 100%; }

.form-item { margin-bottom: 14px; }
.form-item label { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 6px; }
.input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    background: #fff;
    color: var(--text-1);
    outline: none;
    transition: border-color .15s;
}
.input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light); }

.form-msg { font-size: 13px; margin-top: 8px; }
.form-msg.err { color: var(--danger); }
.form-msg.info { color: var(--text-2); background: var(--primary-light); border-radius: 8px; padding: 8px 12px; }

.tag {
    display: inline-block;
    background: var(--bg);
    color: var(--text-2);
    border-radius: 6px;
    padding: 2px 10px;
    font-size: 12px;
    margin-right: 6px;
}
.tag-primary { background: var(--primary-light); color: var(--primary); }
.panel-sub { color: var(--text-3); font-size: 13px; }

/* ---------- 套餐卡片 ---------- */
.vip-status { display: flex; flex-direction: column; gap: 4px; }
.plan-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 6px;
}
.plan-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    position: relative;
    overflow: hidden;
    transition: transform .15s, box-shadow .15s;
}
.plan-card::before {
    content: "";
    position: absolute;
    left: 0; top: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--brand-deep), var(--primary), var(--brand-purple));
}
.plan-card:hover { transform: translateY(-3px); box-shadow: 0 8px 22px rgba(79, 70, 229, .12); }
.plan-name { font-size: 17px; font-weight: 800; }
.plan-desc { color: var(--text-3); font-size: 12px; min-height: 34px; }
.plan-price { font-size: 14px; color: var(--text-2); }
.plan-price b { font-size: 30px; color: var(--primary); font-weight: 800; margin-left: 2px; }

/* ---------- 收银台 ---------- */
.pay-box { max-width: 520px; margin: 30px auto; }
.pay-item { display: flex; justify-content: space-between; align-items: center; padding: 9px 0; border-bottom: 1px dashed var(--border); }
.pay-item span { color: var(--text-3); }
.pay-amount { color: var(--danger); font-size: 20px; }
.pay-ch-tabs { display: flex; gap: 10px; margin: 14px 0; }
.ch-tab {
    flex: 1;
    padding: 9px 0;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fff;
    cursor: pointer;
    color: var(--text-2);
    font-size: 14px;
}
.ch-tab.active { border-color: var(--primary); color: var(--primary); background: var(--primary-light); font-weight: 700; }
.qr-wrap {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    margin: 6px 0 14px;
    text-align: center;
    min-height: 130px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.qr-img { width: 240px; height: 240px; border-radius: 8px; background: #fff; padding: 6px; }
.qr-tip { color: var(--text-2); font-size: 13px; }
.qr-copy a { font-size: 12px; color: var(--text-3); }
.qr-loading { color: var(--text-3); font-size: 13px; padding: 20px; }
.pay-result { text-align: center; padding: 22px 0; font-size: 16px; font-weight: 700; }
.pay-success { color: var(--success); }
.pay-fail { color: var(--danger); }

@media (max-width: 640px) {
    .site-nav-inner, main.page { padding-left: 14px; padding-right: 14px; }
    .plan-grid { grid-template-columns: 1fr 1fr; }
    .qr-img { width: 200px; height: 200px; }
}

/* ---------- 第二批: 分栏布局 / 活动标签 / 划线原价 / 停售 / 兑换码 ---------- */
.shop-layout {
    display: flex;
    gap: 18px;
    align-items: flex-start;
    margin-top: 6px;
}
.shop-aside {
    flex: 0 0 250px;
    min-width: 0;
}
.shop-aside .card { position: sticky; top: 74px; }
.shop-aside .intro-body { color: var(--text-2); font-size: 13px; line-height: 1.75; word-break: break-word; }
.shop-content { flex: 1 1 auto; min-width: 0; }
.shop-content .plan-grid { margin-top: 0; }
@media (max-width: 820px) {
    .shop-layout { flex-direction: column; }
    .shop-aside { flex: none; width: 100%; }
    .shop-aside .card { position: static; }
}
.plan-badge {
    position: absolute;
    top: 14px;
    right: 14px;
    z-index: 1;
    display: inline-block;
    padding: 2px 9px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--danger), #f97316);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    line-height: 1.7;
    white-space: nowrap;
}
.price-orig {
    color: var(--text-3);
    font-weight: 400;
    font-size: 13px;
}
.plan-note {
    font-size: 12px;
    color: var(--success);
    margin-top: -4px;
}
.plan-card.plan-off { background: #fbfbfd; }
.plan-card.plan-off .plan-name,
.plan-card.plan-off .plan-price { opacity: .72; }
.btn-off {
    background: var(--bg) !important;
    color: var(--text-3) !important;
    border: 1px solid var(--border) !important;
    cursor: not-allowed !important;
    box-shadow: none !important;
}
.redeem-row { display: flex; gap: 10px; }
.redeem-input {
    flex: 1;
    min-width: 0;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    outline: none;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.redeem-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79, 70, 229, .12); }
.redeem-row .btn { white-space: nowrap; }