*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
body{font-family:'Noto Sans SC',-apple-system,BlinkMacSystemFont,'Microsoft YaHei',sans-serif;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);min-height:100vh;line-height:1.6;color:#333}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* ===== 搜索栏 ===== */
.search-wrapper{background:white;border-bottom:1px solid #eef2f7;padding:16px 0}
.search-box{display:flex;border-radius:10px;overflow:hidden;background:#f8fafc;border:1px solid #e2e8f0;max-width:640px;margin:0 auto;transition:border-color 0.2s}
.search-box:focus-within{border-color:#667eea;box-shadow:0 0 0 3px rgba(102,126,234,0.1)}
.search-box select{border:none;background:transparent;padding:10px 12px;font-size:0.85rem;cursor:pointer;outline:none;min-width:90px;color:#475569;border-right:1px solid #e2e8f0;border-radius:0}
.search-box input{flex:1;border:none;padding:10px 14px;font-size:0.9rem;outline:none;font-family:inherit;background:transparent}
.search-box button{background:#667eea;border:none;color:white;padding:0 20px;cursor:pointer;font-size:0.95rem;transition:background 0.2s}
.search-box button:hover{background:#5a6fd6}
.tag-cloud{display:flex;gap:6px;flex-wrap:wrap;justify-content:center;margin-top:10px}
.tag-btn{display:inline-block;padding:4px 12px;border-radius:6px;font-size:0.78rem;text-decoration:none;transition:all 0.2s;cursor:pointer;font-weight:500}
.tag-btn:hover{opacity:0.8;transform:translateY(-1px)}

/* ===== 精选推荐 ===== */
.featured-section{margin:24px 0}
.featured-title{font-size:1.1rem;font-weight:600;margin-bottom:14px;color:white;display:flex;align-items:center;gap:8px}
.featured-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px}
.fcard{background:white;border-radius:12px;padding:16px;box-shadow:0 1px 3px rgba(0,0,0,0.06);transition:all 0.25s;cursor:pointer;position:relative;overflow:hidden;border:1px solid #f0f2f5}
.fcard:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(0,0,0,0.08);border-color:#e2e8f0}
.fcard .badge-hot{position:absolute;top:8px;right:8px;background:#ff6b6b;color:white;font-size:0.68rem;padding:2px 8px;border-radius:6px;font-weight:600}
.fcard .ftitle{font-weight:600;color:#1e293b;font-size:0.95rem;margin-bottom:6px}
.fcard .fpreview{font-size:0.82rem;color:#94a3b8;line-height:1.6;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical}
.fcard .fcreator{font-size:0.78rem;color:#94a3b8;margin-top:10px}

/* ===== 分类导航 ===== */
.category-section{margin-bottom:20px}
.section-title{font-size:1.1rem;font-weight:600;margin-bottom:14px;color:white}
nav{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:0}
.nav-btn{padding:8px 18px;border:none;border-radius:8px;background:rgba(255,255,255,0.15);color:rgba(255,255,255,0.85);font-size:0.85rem;cursor:pointer;transition:all 0.2s;font-family:inherit;font-weight:500}
.nav-btn:hover{background:rgba(255,255,255,0.25);color:white}
.nav-btn.active{background:white;color:#667eea;font-weight:600;box-shadow:0 2px 8px rgba(0,0,0,0.1)}

/* ===== 提示词卡片 ===== */
.prompts-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:16px;margin:0 0 20px}
.prompts-grid .empty-state{grid-column:1/-1}
.prompt-card{background:white;border-radius:12px;padding:18px;box-shadow:0 1px 3px rgba(0,0,0,0.06);transition:all 0.25s;border:1px solid #f0f2f5;margin-bottom:0}
.prompt-card:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(0,0,0,0.08);border-color:#e2e8f0}
.prompt-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:8px;gap:8px}
.prompt-title{font-size:1rem;font-weight:600;color:#1e293b}
.prompt-creator{font-size:0.78rem;color:#94a3b8;white-space:nowrap}
.prompt-creator a{color:#667eea;text-decoration:none}
.prompt-creator a:hover{text-decoration:underline}
.preview-content{font-size:0.85rem;color:#64748b;line-height:1.7;margin-bottom:12px;white-space:pre-wrap;word-break:break-word;position:relative;overflow:hidden;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;max-height:4.8em}
.preview-content.locked{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}
.preview-content .blur-overlay{position:absolute;bottom:0;left:0;right:0;height:60px;background:linear-gradient(transparent,white);display:flex;align-items:flex-end;justify-content:center;padding-bottom:6px}
.preview-content .blur-overlay .login-hint{font-size:0.8rem;color:#667eea;font-weight:500;cursor:pointer;text-decoration:none}
.prompt-footer{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap;padding-top:10px;border-top:1px solid #f1f5f9}
.prompt-actions{display:flex;align-items:center;gap:6px}
.prompt-stats{color:#94a3b8;font-size:0.78rem;display:flex;gap:10px}
.copy-btn{ padding:6px 14px;border:none;border-radius:6px;background:#667eea;color:white;font-size:0.82rem;cursor:pointer;transition:all 0.2s;font-family:inherit;font-weight:500;min-width:80px;text-align:center; }
.copy-btn:hover{background:#5a6fd6}
.copy-btn.copied{background:#10b981}
.copy-btn .btn-text{display:inline}
.copy-btn.copied .btn-text{display:none}
.favorite-btn{display:inline-flex;align-items:center;gap:4px;height:32px;padding:0 10px;border-radius:6px;border:1px solid #e2e8f0;background:#f8fafc;color:#475569;font-size:0.82rem;cursor:pointer;transition:all 0.2s;font-family:inherit;white-space:nowrap}
.favorite-btn:hover{background:#f1f5f9;border-color:#667eea;color:#667eea}
.share-btns{display:flex;gap:4px}
.share-btn{display:inline-flex;align-items:center;gap:4px;height:30px;padding:0 12px;border-radius:6px;border:none;background:#f1f5f9;color:#64748b;cursor:pointer;font-size:0.8rem;transition:all 0.2s;vertical-align:middle;line-height:1;white-space:nowrap;font-weight:500}
.share-btn:hover{background:#e2e8f0;color:#475569}

/* ===== 二级分类区块 ===== */
.subcategory-section{margin-bottom:24px;background:rgba(255,255,255,0.08);border-radius:14px;padding:20px;backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,0.12)}
.subcategory-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,0.15)}
.subcategory-name{color:white;font-size:1rem;font-weight:600;display:flex;align-items:center;gap:8px;flex-shrink:0}
.subcategory-name .sub-icon{font-size:1.15rem}
.subcategory-count{font-size:0.82rem;color:rgba(255,255,255,0.6);flex-shrink:0}
/* 分类页内的提示词网格与首页一致 */
.subcategory-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:14px}
.subcategory-grid .subcategory-empty,.subcategory-grid .empty-state{grid-column:1/-1}
.subcategory-empty{padding:20px;text-align:center;color:rgba(255,255,255,0.5);font-size:0.88rem}
.subcategory-more{text-align:center;margin-top:12px}
.subcategory-more a{display:inline-block;padding:8px 20px;border-radius:8px;font-size:0.85rem;background:rgba(255,255,255,0.12);color:rgba(255,255,255,0.85);text-decoration:none;transition:all 0.2s;font-weight:500}
.subcategory-more a:hover{background:rgba(255,255,255,0.2);color:white}

/* ===== 加载更多 ===== */
.load-more{text-align:center;padding:16px 0 32px}
.load-more-btn{padding:10px 32px;border:2px solid rgba(255,255,255,0.3);border-radius:8px;background:transparent;color:rgba(255,255,255,0.85);font-size:0.9rem;cursor:pointer;transition:all 0.2s;font-family:inherit;font-weight:500}
.load-more-btn:hover{background:rgba(255,255,255,0.1);border-color:rgba(255,255,255,0.6);color:white}
.loading-spinner{display:inline-block;width:22px;height:22px;border:3px solid rgba(255,255,255,0.2);border-top-color:white;border-radius:50%;animation:spin 0.7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ===== 漂浮按钮 ===== */
.float-btns{position:fixed;right:16px;bottom:30px;z-index:999;display:flex;flex-direction:column;gap:10px}
.float-btn{width:auto;min-width:52px;padding:6px 4px;border-radius:12px;border:none;cursor:pointer;box-shadow:0 4px 15px rgba(0,0,0,0.25);transition:all 0.25s;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px}
.float-btn:hover{transform:scale(1.10);box-shadow:0 6px 25px rgba(0,0,0,0.35)}
.float-btn .float-btn-icon{font-size:1.1rem;line-height:1}
.float-btn .float-btn-label{font-size:0.52rem;line-height:1;font-weight:500;opacity:0.92;white-space:nowrap}
.float-btn-search{background:linear-gradient(135deg,#667eea,#764ba2);color:white}
.float-btn-invite{background:linear-gradient(135deg,#f39c12,#e67e22);color:white}
.float-btn-home{background:#2ecc71;color:white}
.float-btn-top{background:#1e293b;color:white;opacity:0;pointer-events:none;transition:all 0.35s}
.float-btn-top.show{opacity:1;pointer-events:auto}

/* ===== 搜索弹窗 ===== */
.search-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.5);z-index:2000;align-items:flex-start;justify-content:center;padding-top:80px;backdrop-filter:blur(4px)}
.search-overlay.active{display:flex}
.search-modal{background:white;border-radius:16px;padding:24px;width:90%;max-width:520px;box-shadow:0 20px 60px rgba(0,0,0,0.2);animation:modalIn 0.25s ease}
@keyframes modalIn{from{opacity:0;transform:scale(0.95) translateY(-10px)}to{opacity:1;transform:scale(1) translateY(0)}}
.search-modal .s-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.search-modal .s-title{font-size:1.05rem;font-weight:600;color:#1e293b}
.search-modal .s-close{background:none;border:none;font-size:1.5rem;color:#94a3b8;cursor:pointer;padding:0 4px;line-height:1}
.search-modal .s-close:hover{color:#333}
.search-modal .s-input-wrap{display:flex;border:1px solid #e2e8f0;transition:border-color 0.2s;border-radius:10px;overflow:hidden}
.search-modal .s-input-wrap:focus-within{border-color:#667eea;box-shadow:0 0 0 3px rgba(102,126,234,0.1)}
.search-modal .s-input-wrap select{border:none;background:#f8fafc;padding:10px 12px;font-size:0.85rem;cursor:pointer;outline:none;min-width:80px;color:#475569;border-right:1px solid #e2e8f0;border-radius:0}
.search-modal .s-input-wrap input{flex:1;border:none;padding:10px 14px;font-size:0.9rem;outline:none;font-family:inherit;background:transparent}
.search-modal .s-input-wrap button{background:#667eea;border:none;color:white;padding:8px 20px;cursor:pointer;font-size:0.85rem;transition:background 0.2s;font-weight:500;border-radius:8px;flex-shrink:0;white-space:nowrap}
.search-modal .s-input-wrap button:hover{background:#5a6fd6}
/* 确保搜索提交按钮始终可见 */
.search-modal .s-input-wrap button[type=submit]{display:inline-flex;align-items:center;justify-content:center;min-width:60px}
.s-hot-tags{margin-top:14px;padding-top:12px;border-top:1px solid #eef2f7}
.s-hot-label{font-size:0.78rem;color:#94a3b8;margin-bottom:6px;display:block}
.s-hot-list{display:flex;gap:6px;flex-wrap:wrap}
.s-hot-tag{display:inline-block;padding:4px 10px;border-radius:6px;background:#f1f5f9;color:#475569;font-size:0.78rem;text-decoration:none;transition:all 0.2s}
.s-hot-tag:hover{background:#667eea;color:white}
.s-hot-toggle{margin-top:12px;text-align:center}
.s-hot-toggle button{background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;padding:8px 24px;font-size:0.85rem;color:#475569;cursor:pointer;font-family:inherit;font-weight:500;transition:all 0.2s;box-shadow:0 2px 8px rgba(0,0,0,0.06)}
.s-hot-toggle button:hover{background:#f1f5f9;border-color:#d0d5db}
/* 搜索弹窗下拉选择器 */
.cst-search-wrap{min-width:80px;position:relative}
.cst-search-wrap .cst-select-trigger{padding:10px 14px;background:#f8fafc;font-size:0.85rem;color:#475569;font-weight:400;white-space:nowrap;border-right:1px solid #e2e8f0;cursor:pointer;user-select:none;display:flex;align-items:center;justify-content:center;gap:4px;height:100%;text-align:center}
.cst-search-wrap .cst-select-trigger .cst-value{width:100%;text-align:center}
.cst-search-wrap .cst-arrow{font-size:0.7rem;color:#667eea;transition:transform 0.25s}
.cst-search-wrap .cst-select.open .cst-arrow{transform:rotate(180deg)}
/* 分类选项居中 */
.cst-value{text-align:center}
.cst-option{padding:8px 14px;cursor:pointer;border-radius:8px;font-size:0.85rem;color:#333;transition:all 0.15s;user-select:none;margin:1px 0;text-align:center}
.cst-option:hover{background:#f0f2f5;color:#667eea}
.cst-option.selected{color:#667eea;font-weight:600;background:rgba(102,126,234,0.08)}
.toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%) translateY(80px);background:#1e293b;color:white;padding:10px 22px;border-radius:10px;font-size:0.85rem;z-index:2000;opacity:0;transition:all 0.35s;box-shadow:0 4px 15px rgba(0,0,0,0.15)}
.toast.show{transform:translateX(-50%) translateY(0);opacity:1}

/* ===== Footer ===== */
footer{text-align:center;padding:24px 0;color:rgba(255,255,255,0.7);border-top:1px solid rgba(255,255,255,0.15);margin-top:16px}
footer p{font-size:0.82rem}

/* ===== 响应式 ===== */
@media(max-width:768px){
  .prompts-grid{grid-template-columns:1fr}
  .featured-grid{grid-template-columns:1fr 1fr}
  .subcategory-grid{grid-template-columns:1fr}
  .subcategory-section{padding:14px}
  .search-modal{padding:16px;width:95%}
  .search-modal .s-input-wrap{flex-wrap:wrap}
  .search-modal .s-input-wrap .cst-search-wrap{width:100%;border-right:none}
  .search-modal .s-input-wrap .cst-search-wrap .cst-select-trigger{width:100%;justify-content:center}
  .search-modal .s-input-wrap select{width:100%;border-right:none;border-bottom:1px solid #e2e8f0}
  .search-modal .s-input-wrap input{width:100%}
  .search-modal .s-input-wrap button{width:100%;padding:10px}
}
@media(max-width:480px){
  .container{padding:0 14px}
  .featured-grid{grid-template-columns:1fr}
  .search-box{flex-wrap:wrap}
  .search-box select{width:100%;border-right:none;border-bottom:1px solid #e2e8f0}
  .search-box input{width:100%}
  .search-box button{width:100%;padding:10px}
  .prompt-card{padding:14px}
  .tabs{grid-template-columns:repeat(3,1fr)}
}

/* ===== 空状态 ===== */
.empty-state{text-align:center;padding:40px;color:#94a3b8}
.empty-state .icon{font-size:2.5rem;margin-bottom:10px}


.cst-select-wrap{flex:1;min-width:140px;position:relative}
.cst-select{cursor:pointer;position:relative;z-index:5}
.cst-select-trigger{display:flex;align-items:center;justify-content:center;padding:8px 14px;background:rgba(255,255,255,0.9);border-radius:12px;font-size:0.85rem;color:#333;font-weight:500;transition:box-shadow 0.2s;font-family:inherit;user-select:none;gap:4px}
.cst-select-trigger:hover{box-shadow:0 2px 8px rgba(0,0,0,0.08)}
.cst-select-trigger .cst-value{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cst-select-trigger .cst-arrow{flex-shrink:0;transition:transform 0.25s;color:#667eea}
.cst-select.open .cst-arrow{transform:rotate(180deg)}
.cst-dropdown{display:none;position:absolute;top:calc(100% + 4px);left:0;right:0;background:white;border-radius:12px;box-shadow:0 8px 30px rgba(0,0,0,0.12);z-index:100;max-height:280px;overflow-y:auto;padding:4px}
.cst-select.open .cst-dropdown{display:block}
.cst-option{padding:8px 14px;cursor:pointer;border-radius:8px;font-size:0.85rem;color:#333;transition:all 0.15s;user-select:none;margin:1px 0}
.cst-option:hover{background:#f0f2f5;color:#667eea}
.cst-option.selected{color:#667eea;font-weight:600;background:rgba(102,126,234,0.08)}