.design-mode-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:18px 0 24px}
.design-mode-tabs button{padding:18px 14px;border:1px solid #dfdfea;border-radius:14px;background:#fff;text-align:left;color:#282738;cursor:pointer}
.design-mode-tabs strong,.design-mode-tabs small{display:block}.design-mode-tabs strong{font-size:16px}.design-mode-tabs small{margin-top:7px;font-size:12px;line-height:1.6;color:#767386}
.design-mode-tabs button.selected{border-color:#7160df;background:#f5f2ff;box-shadow:0 0 0 1px #7160df}
.design-mode-tabs button:focus-visible,.theme-library-card button:focus-visible{outline:3px solid #a79aff;outline-offset:3px}
.theme-library-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.theme-library-card{overflow:hidden;border:1px solid #e4e2ec;border-radius:14px;background:#fff}
.theme-library-card.selected{border-color:#7561dc;box-shadow:0 0 0 1px #7561dc}
.theme-select{width:100%;display:block;padding:0 0 12px;border:0;background:none;text-align:left;cursor:pointer;color:#272437}
.theme-select img{display:block;width:100%;aspect-ratio:16/9;object-fit:contain;background:#f0eef5}
.theme-card-title{display:flex;justify-content:space-between;align-items:center;gap:6px;margin:14px 12px 8px}
.theme-card-title strong{font-size:15px}.theme-card-title>span{font-size:11px;color:#6753c3}
.theme-select small{display:block;margin:0 12px;color:#747083;line-height:1.7;min-height:42px}
.theme-layout-count{display:block;font-size:11px;color:#96909f;margin:10px 12px 0}
.theme-enlarge{display:block;width:100%;padding:9px;border:0;border-top:1px solid #eeecf3;background:#faf9fd;color:#6c5dad;font-size:12px;cursor:pointer}
.design-disclosure{font-size:12px;line-height:1.8;color:#827c8e;margin-top:18px}
.design-current{font-size:13px;margin-top:20px;padding:13px 16px;background:#f5f3fc;border-radius:10px;color:#5e4d9a}
.byeppt-capabilities{background:#f4f8f9;border:1px solid #d9e7e8;padding:18px;border-radius:12px;margin-bottom:20px}
.byeppt-capabilities strong{font-size:14px}.byeppt-capabilities p{font-size:13px;color:#687d82;line-height:1.8;margin:8px 0 0}
.theme-preview-backdrop{position:fixed;inset:0;background:#161324b3;z-index:1000;display:grid;place-items:center;padding:24px}
.theme-preview-dialog{width:min(1050px,100%);max-height:90vh;overflow:auto;background:white;padding:20px;border-radius:16px}
.theme-preview-dialog>button{display:block;margin:0 0 14px auto;padding:8px 18px;border-radius:8px;border:1px solid #ddd6eb;background:white;cursor:pointer}
.theme-preview-dialog img{width:100%;height:auto}.theme-preview-dialog p{color:#77717f;line-height:1.7}
/* Deliberately different style diagrams, not the old identical miniature. */
.ai-style-grid .style-consulting-report .preview-visual{width:16%;height:58%;left:12%;top:30%;border-radius:0}
.ai-style-grid .style-education-clean .preview-card{width:58%;height:24%;left:30%;top:60%;transform:rotate(-4deg)}
.ai-style-grid .style-academic-research .preview-visual{width:65%;height:2%;left:17%;top:60%}
.ai-style-grid .style-brand-minimal .preview-card{display:none}
.ai-style-grid .style-brand-minimal .template-preview b{top:34%;left:12%;font-size:24px}
.ai-style-grid .style-chinese-elegant .preview-visual{width:28%;height:62%;left:60%;top:16%;border-radius:50% 50% 0 0}
.ai-style-grid .style-medical-clean .preview-card{width:40%;height:38%;left:48%;top:38%;border-radius:50%}
.ai-style-grid .style-marketing-vibrant .preview-visual{transform:rotate(-16deg);left:58%;top:25%;width:32%;height:58%}
@media(max-width:700px){.theme-library-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.design-mode-tabs{gap:8px}.design-mode-tabs button{padding:13px 9px}.design-mode-tabs strong{font-size:14px}.design-mode-tabs small{font-size:11px}}
@media(max-width:400px){.theme-library-grid{grid-template-columns:1fr}.design-mode-tabs{grid-template-columns:1fr}.design-mode-tabs small{margin-top:3px}}