.wechat-backdrop{position:fixed;inset:0;z-index:1200;display:flex;justify-content:center;align-items:flex-start;padding-top:5vh;background:rgba(var(--shade),.45);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);animation:fm-fade-in var(--dur-fast) var(--ease-out)}.wechat-modal{width:900px;max-width:calc(100vw - 64px);height:780px;max-height:90vh;display:flex;flex-direction:column;background:var(--popover-glass);backdrop-filter:var(--popover-blur);-webkit-backdrop-filter:var(--popover-blur);border:1px solid var(--border-strong);border-radius:14px;box-shadow:0 32px 64px -16px rgba(var(--shade),.42),0 6px 16px rgba(var(--shade),.14),inset 0 1px 0 var(--lift-hi);overflow:hidden;animation:fm-spotlight-in .2s cubic-bezier(.16,1,.3,1);font-family:var(--font-ui)}.wechat-header{display:flex;align-items:center;gap:14px;padding:14px 14px 13px 20px;border-bottom:1px solid var(--border-subtle)}.wechat-heading{display:flex;align-items:baseline;gap:10px;min-width:0}.wechat-title{font-size:14.5px;font-weight:600;letter-spacing:.01em;color:var(--text-primary);white-space:nowrap}.wechat-subtitle{font-size:var(--fs-caption);color:var(--text-faint);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.wechat-doc{flex:1;min-width:0;text-align:end;font-size:11.5px;color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.wechat-close{display:flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:7px;color:var(--text-interactive);transition:background-color var(--dur-fast) var(--ease-out),color var(--dur-fast) var(--ease-out)}.wechat-close:hover{background:rgba(var(--ink),.07);color:var(--text-primary)}.wechat-close svg{width:14px;height:14px}.wechat-body{flex:1;min-height:0;display:flex}.wechat-themes{width:236px;flex-shrink:0;overflow-y:auto;padding:12px 10px;border-right:1px solid var(--border-subtle);display:flex;flex-direction:column;gap:4px}.wechat-theme{position:relative;display:flex;align-items:center;gap:12px;width:100%;padding:10px;border-radius:10px;text-align:start;transition:background-color var(--dur-fast) var(--ease-out),box-shadow var(--dur-fast) var(--ease-out)}.wechat-theme:hover{background:rgba(var(--ink),.045)}.wechat-theme.is-active{background:var(--surface-float);box-shadow:0 0 0 1px var(--accent-soft),0 1px 3px rgba(var(--shade),.07)}.wechat-spec{flex-shrink:0;width:62px;height:54px;padding:8px 7px;border-radius:6px;display:flex;flex-direction:column;gap:4px;overflow:hidden;box-shadow:inset 0 0 0 1px rgba(var(--ink),.09),0 1px 2px rgba(var(--shade),.06)}.wechat-spec-title{height:5px;border-radius:2px}.wechat-spec-rule{border-radius:1px;margin-bottom:1px}.wechat-spec-line{height:2px;border-radius:1px;opacity:.45}.wechat-spec-row{display:flex;align-items:center;gap:3px;flex-shrink:0}.wechat-spec-mark{flex-shrink:0}.wechat-spec-block{height:6px;width:46%;border-radius:2px;flex-shrink:0}.wechat-spec-strong{height:3px;width:30%;border-radius:1px;flex-shrink:0}.wechat-spec-quote{height:10px;margin-top:auto}.wechat-theme-text{display:flex;flex-direction:column;gap:3px;min-width:0}.wechat-theme-name{font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--text-primary)}.wechat-theme.is-active .wechat-theme-name{color:var(--accent)}.wechat-theme-hint{font-size:10.5px;line-height:1.5;color:var(--text-faint)}.wechat-theme-check{position:absolute;top:10px;right:10px;display:flex;color:var(--accent)}.wechat-theme-check svg{width:11px;height:11px}.wechat-preview{flex:1;min-width:0;display:flex;flex-direction:column;overflow:hidden}.wechat-preview-scroll{flex:1;overflow-y:auto;overflow-anchor:none;padding:26px 0 34px;display:flex;justify-content:center;align-items:flex-start;background:linear-gradient(180deg,var(--sidebar) 0%,var(--paper) 100%)}.wechat-paper{flex-shrink:0;padding:34px 22px 44px;border-radius:12px;background:#fff;box-shadow:0 24px 48px -24px rgba(var(--shade),.4),0 2px 6px rgba(var(--shade),.06)}.wechat-preview-page{width:375px}.wechat-preview-page img{max-width:100%}.wechat-preview-waiting{margin-top:60px;font-family:var(--font-ui);font-size:12.5px;color:var(--text-muted)}.wechat-footer{display:flex;align-items:center;gap:10px;padding:12px 16px;border-top:1px solid var(--border-subtle)}.wechat-hint{flex:1;min-width:0;font-size:10.5px;line-height:1.5;color:var(--text-faint)}.wechat-btn{flex-shrink:0;height:30px;padding:0 16px;border:1px solid var(--border-strong);border-radius:8px;font-family:var(--font-ui);font-size:12.5px;font-weight:500;color:var(--text-body);background:var(--surface-raised);box-shadow:inset 0 1px 0 var(--lift-hi),0 1px 2px rgba(var(--shade),.06);transition:background-color var(--dur-fast) var(--ease-out),border-color var(--dur-fast) var(--ease-out),color var(--dur-fast) var(--ease-out),box-shadow var(--dur-fast) var(--ease-out),opacity var(--dur-fast) var(--ease-out)}.wechat-btn:hover{border-color:color-mix(in srgb,var(--accent) 45%,transparent);background:var(--accent-soft);color:var(--accent)}.wechat-btn.is-primary{color:var(--on-accent);border-color:var(--accent);background:var(--accent);box-shadow:0 1px 2px rgba(var(--shade),.18)}.wechat-btn.is-primary:hover{border-color:color-mix(in srgb,var(--accent) 86%,var(--text-primary));background:color-mix(in srgb,var(--accent) 86%,var(--text-primary));color:var(--on-accent);box-shadow:0 2px 6px rgba(var(--shade),.22)}.wechat-btn:disabled{opacity:.45;pointer-events:none}