/* Shared navigation and membership UI: intentionally scoped to avoid page styles. */
#site-header.site-shell-header{box-sizing:border-box;position:sticky;top:0;z-index:100;width:100%;min-height:72px;height:auto;padding:14px clamp(16px,3vw,42px);display:flex;align-items:center;justify-content:space-between;gap:18px;background:rgba(255,255,255,.97);border:0;border-bottom:1px solid #e2e8f0;box-shadow:0 3px 14px #0f172a04;font:13px/1.4 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC",sans-serif;backdrop-filter:blur(12px)}
.site-shell-header a{text-decoration:none!important}
.site-shell-header .shell-brand{font-size:20px;font-weight:850;color:#0f172a;white-space:nowrap;letter-spacing:-.6px}
.site-shell-header .shell-brand span{color:#2563eb}
.site-shell-header .shell-links{display:flex;align-items:center;gap:4px;flex-wrap:wrap;justify-content:center}
.site-shell-header .shell-links .tab-btn{margin:0;border:0;background:none;color:#64748b;padding:9px 11px;border-radius:8px;font-size:13px;font-weight:650;white-space:nowrap;line-height:1.4;box-shadow:none}
.site-shell-header .shell-links .tab-btn.active,.site-shell-header .shell-links .tab-btn:hover{color:#1d4ed8;background:#eff6ff}
.site-shell-header .tab-btn::after{display:none}
.site-shell-header .shell-account{display:flex;gap:8px;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.site-shell-header .shell-balance{color:#64748b;white-space:nowrap;font-size:12px}
.site-shell-header .credit-num{font-family:inherit;font-size:14px;color:#1e293b;font-weight:750}
.site-shell-header .shell-button{border:1px solid #e2e8f0;border-radius:8px;background:#fff;color:#475569;padding:8px 10px;font-family:inherit;font-size:12px;line-height:1.4;font-weight:650;white-space:nowrap;cursor:pointer}
.site-shell-header .shell-button:hover{background:#f8fafc;border-color:#bfdbfe}
.site-shell-header .shell-button:disabled{opacity:.6;cursor:default}
.site-shell-header .shell-vip{color:#a16207;border-color:#fde68a;background:#fffbeb}
.site-shell-header .shell-quiet{border-color:transparent}
.site-shell-header :focus-visible,#member-apply-overlay :focus-visible{outline:3px solid #93c5fd;outline-offset:3px}
#member-apply-overlay[hidden]{display:none!important}
#member-apply-overlay{position:fixed;inset:0;z-index:1400;display:flex;align-items:center;justify-content:center;padding:16px;background:#0f172a80;opacity:1;pointer-events:auto;font:14px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC",sans-serif;color:#111827}
#member-apply-overlay *{box-sizing:border-box}
#member-apply-overlay .member-modal{width:min(600px,100%);max-height:calc(100dvh - 32px);overflow-y:auto;background:#fff;border:1px solid #e2e8f0;border-radius:20px;padding:24px;box-shadow:0 26px 80px #0f172a40;transform:none}
#member-apply-overlay .member-modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:16px}
#member-apply-overlay .member-modal-title{color:#111827;font-size:19px;font-weight:800}
#member-apply-overlay .member-modal-sub{color:#64748b;font-size:12px;margin-top:5px}
#member-apply-overlay .member-modal-close{background:none;border:0;color:#64748b;font-size:22px;cursor:pointer}
#member-apply-overlay .member-plan-grid,#member-apply-overlay .member-form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-bottom:14px}
#member-apply-overlay .member-plan{padding:13px;background:#f8fafc;border:1px solid #e2e8f0;border-radius:12px;text-align:left;font:inherit;cursor:pointer;position:relative}
#member-apply-overlay .member-plan.hot{background:#fffbeb;border-color:#fde68a}
#member-apply-overlay .member-plan[aria-pressed="true"]{border-color:#2563eb;box-shadow:0 0 0 2px #2563eb22}
#member-apply-overlay .member-plan[aria-pressed="true"]::after{content:'已选';position:absolute;right:10px;top:10px;font-size:10px;color:#2563eb;font-weight:700}
#member-apply-overlay .member-plan-original{font-size:11px;color:#64748b;text-decoration:line-through;margin-bottom:4px}
#member-apply-overlay .member-plan-unavailable{font-size:11px;color:#92400e;margin-top:5px;line-height:1.5}
#member-apply-overlay .member-plan:disabled{cursor:default}
#member-apply-overlay .member-coupon{display:flex;flex-wrap:wrap;gap:4px 12px;align-items:center;padding:11px 13px;border:1px dashed #d97706;border-radius:10px;background:#fffbeb;color:#92400e;margin-bottom:12px;font-size:11px}
#member-apply-overlay .member-coupon strong{font-size:13px}
#member-apply-overlay [hidden]{display:none!important}
#member-apply-overlay .member-plan-name{font-size:12px;font-weight:750;color:#334155}
#member-apply-overlay .member-plan-price{font-size:23px;font-weight:800;margin:3px 0;color:#111827}
#member-apply-overlay .member-plan-price small{font-size:11px;color:#64748b}
#member-apply-overlay .member-plan-desc{font-size:11px;line-height:1.65;color:#64748b}
#member-apply-overlay .member-observer-benefit{padding:12px 14px;border-radius:10px;background:#eff6ff;border:1px solid #dbeafe;margin:12px 0 18px}
#member-apply-overlay .member-observer-benefit strong{color:#1d4ed8;font-size:13px}
#member-apply-overlay .member-observer-benefit p{margin:5px 0;font-size:12px;color:#475569}
#member-apply-overlay .member-observer-benefit small{color:#64748b;font-size:11px}
#member-apply-overlay .member-apply-form{padding-top:14px;border-top:1px solid #e2e8f0}
#member-apply-overlay .field-group{margin:0;min-width:0}
#member-apply-overlay label{display:block;font-size:12px;font-weight:650;margin-bottom:5px}
#member-apply-overlay input,#member-apply-overlay select{width:100%;font:inherit;font-size:12px;background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;padding:10px;color:#111827;outline-offset:2px}
#member-apply-overlay .member-cta{padding:12px;color:#fff;background:#2563eb;border-radius:9px;font-family:inherit;font-size:13px;font-weight:700;line-height:1.4;cursor:pointer}
#member-apply-overlay button:disabled{opacity:.6;cursor:wait}
#member-apply-status{margin:8px 0;color:#1d4ed8;font-size:12px}
#member-apply-status.error{color:#dc2626}
.site-shell-toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);z-index:1500;background:#1e293b;color:#fff;padding:12px 20px;border-radius:10px;font:13px/1.5 sans-serif;max-width:calc(100vw - 32px)}
@media(max-width:1280px){#site-header.site-shell-header{gap:10px;flex-wrap:wrap}.site-shell-header .shell-links{order:3;flex-basis:100%;min-width:0;justify-content:flex-start}.site-shell-header .shell-links .tab-btn{padding:8px 11px}}
@media(max-width:560px){#site-header.site-shell-header{padding:12px;gap:9px}.site-shell-header .shell-brand{font-size:17px}.site-shell-header .shell-account{gap:5px}.site-shell-header .shell-button{font-size:11px;padding:6px}.site-shell-header .shell-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:3px}.site-shell-header .shell-links .tab-btn{font-size:12px;text-align:center;padding:7px 4px}.site-shell-header .shell-balance{font-size:10px}#member-apply-overlay .member-modal{padding:18px}#member-apply-overlay .member-form-grid{grid-template-columns:1fr}}
/* One independent backdrop: never reveal the prediction-detail dialog. */
.site-credits-overlay.hidden{display:none!important}
.site-credits-overlay{position:fixed;inset:0;z-index:20000;display:flex;align-items:center;justify-content:center;background:rgba(15,23,42,.62);backdrop-filter:blur(5px);padding:20px;box-sizing:border-box}
.site-credits-dialog{box-sizing:border-box;width:420px;max-width:100%;max-height:calc(100dvh - 40px);overflow:auto;background:#fff;color:#172033;border:1px solid #e2e8f0;border-radius:26px;padding:26px 30px 30px;box-shadow:0 24px 80px #0f172a30;font-family:Inter,-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif}
.site-credits-dialog header{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #e2e8f0;padding:12px 0 20px;margin-bottom:16px}
.site-credits-dialog:focus{outline:0}.site-credits-dialog button:focus-visible,.site-credits-dialog a:focus-visible{outline:3px solid #93c5fd;outline-offset:2px}
.site-credits-dialog header h2{font-size:18px;margin:0;font-weight:800;color:#111827}
.site-credits-dialog header button{background:none;border:0;font-size:24px;color:#64748b;cursor:pointer}
.site-credits-dialog>p{font-size:13px;line-height:1.6;color:#c81e1e;font-weight:650;margin:0 0 20px}
.site-credits-balances{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:20px}
.site-credits-balances>div{background:#f8fafc;border:1px solid #e2e8f0;border-radius:14px;padding:18px 8px;text-align:center}
.site-credits-balances strong{display:block;font-size:23px;color:#c81e1e;font-weight:900}.site-credits-balances>div+div strong{color:#a16207}
.site-credits-balances span{display:block;color:#64748b;font-size:12px;margin-top:8px}
.site-credits-benefits{background:#f8fafc;border:1px solid #e2e8f0;border-radius:14px;overflow:hidden;margin-bottom:20px}
.site-credits-benefits h3{margin:0;padding:12px 14px;font-size:13px;color:#a16207}
.site-credits-benefits table{width:100%;border-collapse:collapse;font-size:11px;text-align:center;color:#64748b}
.site-credits-benefits th,.site-credits-benefits td{padding:11px 6px;border-top:1px solid #e2e8f0;white-space:nowrap}
.site-credits-benefits th:first-child{text-align:left;padding-left:10px;font-weight:600;color:#475569}
.site-credits-benefits td:last-child,.site-credits-benefits th:last-child{color:#a16207;font-weight:700}
.site-credits-benefits td:nth-child(3),.site-credits-benefits th:nth-child(3){color:#60a5fa}
.site-credits-actions button,.site-credits-actions a{display:block;box-sizing:border-box;border:0;border-radius:14px;background:#2456e8;color:white;padding:13px 8px;font-family:inherit;font-size:14px;font-weight:700;line-height:1.4;cursor:pointer;text-decoration:none;text-align:center}
.site-credits-actions>.site-credits-member{width:100%;background:linear-gradient(90deg,#f9cd3d,#ee9448);color:#996000;margin-bottom:12px}
.site-credits-actions>div{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:450px){.site-credits-dialog{padding:16px}.site-credits-benefits table{font-size:10px}.site-credits-benefits th,.site-credits-benefits td{padding:10px 4px}}