:root{--bg:#f4f6fb;--card:#fff;--line:#dfe5f2;--text-main:#1c2b4b;--text-soft:#7f8da8;--primary:#3f6ce1;--primary-soft:#ebf1ff;--success:#2a9d5c;--danger:#ce4d4d;--warning:#bd8f2f}*{box-sizing:border-box}body,html{margin:0;padding:0;background:radial-gradient(circle at 0 0,#f9fbff 0,var(--bg) 45%,#edf1fb 100%);color:var(--text-main);font-family:PingFang SC,Noto Sans SC,Segoe UI,sans-serif}a{color:inherit}.home-wrap{min-height:100vh;display:grid;place-items:center;padding:24px}.home-card{width:min(420px,100%);background:var(--card);border:1px solid var(--line);border-radius:18px;padding:48px 28px;box-shadow:0 8px 24px rgba(64,96,168,.06)}.home-brand{display:flex;flex-direction:column;align-items:center;gap:20px}.home-logo{object-fit:contain}.home-title{margin:0;font-size:28px;letter-spacing:2px;color:var(--text-soft);font-weight:600}.checkout-page{min-height:100vh;display:flex;justify-content:center;padding:24px 12px}.checkout-card{width:min(410px,100%);background:var(--card);border:1px solid var(--line);border-radius:18px;padding:20px 16px 24px;box-shadow:0 8px 24px rgba(64,96,168,.06)}.checkout-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.back-link{border:0;background:transparent;color:var(--text-main);font-weight:600;padding:4px 0;cursor:pointer}.head-right{display:flex;align-items:center;gap:8px}.lang-btn{border:1px solid var(--line);background:transparent;color:var(--text-soft);border-radius:6px;padding:3px 8px;font-size:12px;font-weight:600;cursor:pointer}.lang-btn:hover{background:var(--primary-soft);color:var(--primary);border-color:var(--primary-soft)}.order-status{font-size:12px;border-radius:999px;padding:4px 10px;background:#eff3fb;color:var(--text-soft)}.status-init{color:#4d668f}.status-pending{color:var(--warning);background:#fff7e8}.status-paid{color:var(--success);background:#eafaf0}.status-expired{color:var(--danger);background:#fff0f0}.checkout-title{margin:0 0 18px;font-size:36px;letter-spacing:.2px}.amount-panel{background:#f5f8ff;border-radius:14px;text-align:center;padding:20px 12px;margin-bottom:14px}.amount-label{margin:0;color:#7382a1;font-size:22px;font-weight:600}.amount-value{margin:10px 0 0;font-size:48px;font-weight:800;color:var(--primary)}.address-panel{border:1px solid var(--line);border-radius:14px;padding:14px}.address-label{margin:0 0 12px;font-size:22px}.address-hint,.address-label{text-align:center;color:var(--text-soft);font-weight:600}.address-hint{margin:0;font-size:16px;padding:24px 12px}.address-row{display:flex;align-items:center;gap:8px;margin-bottom:14px}.address-code{flex:1 1;display:block;background:#f6f8fd;border-radius:10px;padding:12px;font-size:14px;word-break:break-all;min-height:44px}.icon-btn{border:0;background:#eef3ff;color:#4c69b0;border-radius:8px;padding:8px 10px;font-weight:700;cursor:pointer}.icon-btn:disabled{opacity:.5;cursor:not-allowed}.qr-wrap{display:flex;justify-content:center;margin:6px 0 8px}.qr-wrap img{width:220px;height:220px;border-radius:6px}.qr-toggle{border:0;background:transparent;color:#4d69a8;cursor:pointer;display:block;margin:0 auto;font-size:14px;font-weight:600}.qr-toggle:disabled{opacity:.5;cursor:not-allowed}.expired-text{text-align:center;color:var(--text-soft);margin:10px 0 0;font-weight:600}.expired-text.danger{color:var(--danger)}.helper-link{display:block;width:-moz-fit-content;width:fit-content;margin:20px auto 0;color:#657aa8;font-size:14px;text-decoration:underline}.action-row{margin-top:16px;display:flex;flex-direction:column;gap:10px}.btn-primary,.btn-secondary{border:0;border-radius:12px;text-align:center;padding:12px 16px;font-size:16px;font-weight:700;text-decoration:none;cursor:pointer}.btn-primary{background:var(--primary-soft);color:var(--primary)}.btn-secondary{background:#eef1f7;color:#4a5f8e}.notice{text-align:center;color:var(--text-soft);font-size:13px;margin-top:12px}.error{margin-top:10px;color:var(--danger);font-size:13px}@media (max-width:480px){.checkout-title{font-size:30px}.address-label,.amount-label{font-size:18px}.amount-value{font-size:38px}}