:root {
  --primary:#27ae60; --primary-dark:#1e8449; --primary-light:#eafaf1;
  --accent:#e67e22; --accent-light:#fef3e2;
  --dark:#1a2332; --dark-soft:#2c3e50;
  --text:#374151; --text-light:#6b7280; --text-lighter:#9ca3af;
  --bg:#f7faf8; --white:#fff;
  --border:#e5e7eb; --radius:16px; --radius-sm:10px; --radius-full:999px;
  --shadow:0 2px 12px rgba(39,174,96,.08);
  --shadow-hover:0 8px 30px rgba(39,174,96,.15);
}
* {margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:'Noto Sans SC',-apple-system,'PingFang SC',sans-serif;background:var(--bg);color:var(--text);line-height:1.6;}
::-webkit-scrollbar{width:6px;}
::-webkit-scrollbar-thumb{background:var(--primary);border-radius:3px;}

/* 顶部 */
.topbar{background:var(--dark);color:rgba(255,255,255,.45);font-size:13px;padding:8px 0;}
.topbar-inner{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;justify-content:space-between;}
.topbar a{color:rgba(255,255,255,.45);text-decoration:none;margin-left:20px;transition:color .2s;}
.topbar a:hover{color:rgba(255,255,255,.9);}

/* 导航 */
.header{background:var(--white);box-shadow:var(--shadow);position:sticky;top:0;z-index:100;}
.header-inner{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:24px;height:64px;}
.logo{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:900;color:var(--dark);flex-shrink:0;text-decoration:none;}
.logo-icon{width:36px;height:36px;background:linear-gradient(135deg,#27ae60,#1e8449);border-radius:11px;display:flex;align-items:center;justify-content:center;font-size:18px;color:white;box-shadow:0 3px 10px rgba(39,174,96,.3);}
.logo span{color:var(--primary);}
.nav{display:flex;gap:2px;flex:1;}
.nav-item{padding:7px 16px;font-size:14px;font-weight:500;color:var(--text-light);cursor:pointer;border-radius:var(--radius-full);transition:all .2s;white-space:nowrap;border:none;background:transparent;}
.nav-item:hover{background:var(--primary-light);color:var(--primary);}
.nav-item.active{background:var(--primary);color:white;font-weight:600;}
.hdr-btn{display:flex;gap:8px;align-items:center;flex-shrink:0;}
.btn-ghost{padding:7px 18px;border:1.5px solid var(--border);border-radius:var(--radius-full);font-size:13px;font-weight:500;background:transparent;cursor:pointer;color:var(--text);transition:all .2s;}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light);}
.btn-primary{padding:7px 20px;background:linear-gradient(135deg,#27ae60,#1e8449);border:none;border-radius:var(--radius-full);font-size:13px;font-weight:600;cursor:pointer;color:white;box-shadow:0 3px 10px rgba(39,174,96,.3);transition:all .2s;}
.btn-primary:hover{box-shadow:0 5px 16px rgba(39,174,96,.4);transform:translateY(-1px);}

/* 搜索 */
.search-bar{padding:16px 24px 0;max-width:1200px;margin:0 auto;}
.search-wrap{display:flex;background:white;border-radius:var(--radius-full);box-shadow:0 3px 16px rgba(0,0,0,.07);border:2px solid transparent;transition:all .2s;}
.search-wrap:focus-within{border-color:var(--primary);box-shadow:0 3px 20px rgba(39,174,96,.18);}
.search-select{padding:12px 16px;border:none;border-right:1px solid var(--border);font-size:14px;color:var(--text);background:transparent;cursor:pointer;outline:none;border-radius:var(--radius-full) 0 0 var(--radius-full);}
.search-input{flex:1;padding:12px 18px;border:none;font-size:15px;outline:none;color:var(--text);}
.search-input::placeholder{color:var(--text-lighter);}
.search-btn{padding:12px 24px;background:var(--primary);color:white;border:none;border-radius:0 var(--radius-full) var(--radius-full) 0;font-size:14px;font-weight:600;cursor:pointer;display:flex;align-items:center;gap:6px;transition:background .2s;white-space:nowrap;}
.search-btn:hover{background:var(--primary-dark);}

/* Hero */
.hero{background:linear-gradient(135deg,#0f3d1e 0%,#1a5c30 40%,#0d6b25 100%);padding:52px 24px 60px;position:relative;overflow:hidden;}
.hero::before{content:'';position:absolute;top:-50%;right:-10%;width:600px;height:600px;background:radial-gradient(circle,rgba(74,222,128,.12) 0%,transparent 65%);border-radius:50%;}
.hero::after{content:'';position:absolute;bottom:-30%;left:-10%;width:400px;height:400px;background:radial-gradient(circle,rgba(39,174,96,.15) 0%,transparent 70%);border-radius:50%;}
.hero-inner{max-width:860px;margin:0 auto;text-align:center;position:relative;z-index:1;}
.hero h1{color:white;font-size:40px;font-weight:900;margin-bottom:14px;letter-spacing:-.5px;}
.hero h1 span{color:#4ade80;}
.hero-subtitle{color:rgba(255,255,255,.75);font-size:16px;margin-bottom:8px;letter-spacing:2px;text-transform:uppercase;font-weight:500;}
.hero p{color:rgba(255,255,255,.55);font-size:15px;margin-bottom:30px;line-height:1.8;}
.hero-stats{display:flex;justify-content:center;gap:48px;}
.hero-stat{text-align:center;}
.hero-stat-num{font-size:30px;font-weight:900;color:white;}
.hero-stat-unit{font-size:11px;color:rgba(255,255,255,.4);margin-top:1px;}
.hero-stat-label{font-size:13px;color:rgba(255,255,255,.5);margin-top:4px;font-weight:400;}
.hero-divider{width:1px;background:rgba(255,255,255,.12);}
.hero-tags{margin-top:22px;display:flex;flex-wrap:wrap;justify-content:center;gap:8px;}
.hero-tag{background:rgba(255,255,255,.07);color:rgba(255,255,255,.6);padding:5px 14px;border-radius:var(--radius-full);font-size:12px;text-decoration:none;transition:all .2s;border:1px solid rgba(255,255,255,.1);}
.hero-tag:hover{background:rgba(255,255,255,.15);color:white;}

/* 主内容 */
.main{max-width:1200px;margin:0 auto;padding:24px;min-height:60vh;}

/* 标签页切换 */
.tab-bar{display:flex;gap:8px;margin-bottom:24px;background:white;border-radius:var(--radius);padding:6px;border:1.5px solid var(--border);}
.tab-btn{display:flex;align-items:center;gap:8px;flex:1;justify-content:center;padding:12px 20px;border:none;border-radius:10px;font-size:15px;font-weight:600;color:var(--text-light);background:transparent;cursor:pointer;transition:all .25s;}
.tab-btn:hover{background:var(--bg);color:var(--text);}
.tab-btn.active{background:var(--primary);color:white;box-shadow:0 3px 12px rgba(39,174,96,.3);}
.tab-btn.active .tab-icon{filter:hue-rotate(-10deg) saturate(1.3);}
.tab-icon{font-size:20px;}

/* 科普 banner */
.science-banner{display:flex;align-items:center;gap:16px;background:linear-gradient(135deg,#f0fdf4,#ecfdf5);border:1.5px solid #bbf7d0;border-radius:var(--radius);padding:16px 20px;margin-bottom:18px;}
.science-banner-text{display:flex;flex-direction:column;gap:2px;}
.science-banner-text strong{font-size:16px;color:#15803d;font-weight:700;}
.science-banner-text span{font-size:13px;color:#166534;}

/* 疾病库 */
.dept-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-bottom:24px;}
.dept-chip{display:flex;align-items:center;gap:8px;padding:9px 14px;background:white;border:1.5px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;font-size:13px;font-weight:500;color:var(--text);transition:all .2s;white-space:nowrap;}
.dept-chip:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light);}
.dept-chip.active{border-color:var(--primary);background:var(--primary);color:white;border-color:var(--primary);}
.dept-chip .icon{font-size:16px;}

.disease-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.disease-card{background:white;border:1.5px solid var(--border);border-radius:var(--radius);padding:20px;cursor:pointer;transition:all .25s;}
.disease-card:hover{border-color:var(--primary);box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.disease-card-header{display:flex;align-items:center;gap:10px;margin-bottom:10px;}
.disease-icon{font-size:28px;}
.disease-name{font-size:17px;font-weight:800;color:var(--dark);}
.disease-dept{font-size:11px;color:var(--primary);background:var(--primary-light);padding:2px 8px;border-radius:var(--radius-full);margin-left:auto;font-weight:600;}
.disease-desc{font-size:13px;color:var(--text-light);line-height:1.7;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.disease-symptoms{display:flex;flex-wrap:wrap;gap:5px;}
.symptom-tag{background:#f3f4f6;color:var(--text-light);padding:3px 9px;border-radius:var(--radius-full);font-size:11px;}

/* 疾病详情 */
.disease-detail{background:white;border-radius:var(--radius);padding:28px;border:1.5px solid var(--border);}
.detail-header{display:flex;align-items:center;gap:14px;margin-bottom:20px;padding-bottom:18px;border-bottom:1px solid var(--border);}
.detail-icon{font-size:48px;}
.detail-title{font-size:24px;font-weight:900;color:var(--dark);}
.detail-dept{font-size:13px;color:var(--primary);background:var(--primary-light);padding:4px 12px;border-radius:var(--radius-full);font-weight:600;display:inline-block;margin-top:6px;}
.detail-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-bottom:20px;}
.detail-block{background:var(--bg);border-radius:var(--radius-sm);padding:16px;}
.detail-block h4{font-size:13px;font-weight:700;color:var(--primary);margin-bottom:8px;text-transform:uppercase;letter-spacing:.5px;}
.detail-block p{font-size:14px;color:var(--text);line-height:1.8;}
.detail-block.symptoms-block{}
.detail-block.symptoms-block h4{color:#e67e22;}
.symptom-tags{display:flex;flex-wrap:wrap;gap:6px;}
.symptom-tag2{background:#fef3e2;color:#e67e22;padding:4px 12px;border-radius:var(--radius-full);font-size:13px;font-weight:500;}
.detail-warning{background:#fffbeb;border:1px solid #fde68a;border-radius:var(--radius-sm);padding:14px 18px;font-size:13px;color:#92400e;line-height:1.7;}
.back-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;background:var(--bg);border:1.5px solid var(--border);border-radius:var(--radius-full);font-size:13px;color:var(--text-light);cursor:pointer;margin-bottom:20px;transition:all .2s;}
.back-btn:hover{border-color:var(--primary);color:var(--primary);}

/* 社区帖子 */
.post-list{display:flex;flex-direction:column;gap:12px;}
.post-card{background:white;border:1.5px solid var(--border);border-radius:var(--radius);padding:20px;cursor:pointer;transition:all .25s;}
.post-card:hover{border-color:var(--primary);box-shadow:var(--shadow-hover);transform:translateY(-1px);}
.post-top{display:flex;align-items:flex-start;gap:12px;}
.post-avatar{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;color:white;flex-shrink:0;}
.post-body{flex:1;min-width:0;}
.post-title{font-size:16px;font-weight:700;color:var(--dark);line-height:1.5;margin-bottom:8px;}
.post-desc{font-size:14px;color:var(--text-light);line-height:1.7;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-footer{display:flex;align-items:center;gap:14px;font-size:12px;color:var(--text-lighter);}
.post-meta{display:flex;align-items:center;gap:4px;}
.post-tag{margin-left:auto;font-size:11px;padding:3px 10px;border-radius:var(--radius-full);font-weight:600;}
.tag-exp{background:#fef3e2;color:#e67e22;}
.tag-qa{background:#eaf4ff;color:#2980b9;}
.tag-share{background:#fdf2f8;color:#c0392b;}
.tag-rec{background:#eafaf1;color:#27ae60;}

/* 发帖 */
.post-form{background:white;border-radius:var(--radius);padding:24px;border:1.5px solid var(--border);margin-bottom:20px;}
.form-group{margin-bottom:14px;}
.form-group label{display:block;font-size:13px;font-weight:700;color:var(--dark);margin-bottom:6px;}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:11px 14px;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-size:14px;outline:none;transition:border-color .2s;font-family:inherit;}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--primary);}
.form-group textarea{resize:vertical;min-height:100px;line-height:1.7;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.form-actions{display:flex;gap:10px;margin-top:6px;}
.btn-submit{flex:1;padding:12px;background:linear-gradient(135deg,#27ae60,#1e8449);color:white;border:none;border-radius:var(--radius-sm);font-size:15px;font-weight:700;cursor:pointer;transition:all .2s;box-shadow:0 3px 10px rgba(39,174,96,.3);}
.btn-submit:hover{box-shadow:0 5px 16px rgba(39,174,96,.4);transform:translateY(-1px);}
.btn-reset{padding:12px 20px;background:var(--bg);color:var(--text-light);border:1.5px solid var(--border);border-radius:var(--radius-sm);font-size:14px;cursor:pointer;}
.btn-reset:hover{border-color:var(--primary);color:var(--primary);}

/* 右侧栏 */
.sidebar{display:flex;flex-direction:column;gap:14px;}
.sidebar-card{background:white;border:1.5px solid var(--border);border-radius:var(--radius);padding:18px;}
.sidebar-title{font-size:14px;font-weight:700;color:var(--dark);margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid var(--primary);display:flex;align-items:center;gap:5px;}
.topic-item{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid #f5f5f5;cursor:pointer;transition:background .2s;}
.topic-item:last-child{border-bottom:none;}
.topic-item:hover{background:#fafafa;margin:0 -8px;padding-left:8px;padding-right:8px;border-radius:8px;}
.topic-icon{font-size:20px;}
.topic-name{font-size:13px;color:var(--dark);flex:1;font-weight:500;}
.topic-count{font-size:11px;color:var(--text-lighter);}
.hot-item:last-child{border-bottom:none;}
.hot-rank{font-size:20px;font-weight:900;color:#e2e8f0;width:22px;flex-shrink:0;line-height:1.1;}
.hot-rank.r1{color:#e74c3c;}
.hot-rank.r2{color:#e67e22;}
.hot-rank.r3{color:#f39c12;}
.hot-title{font-size:13px;color:var(--dark);line-height:1.5;flex:1;}
.hot-title:hover{color:var(--primary);}
.hot-replies{font-size:11px;color:var(--text-lighter);margin-top:1px;}
.user-item{display:flex;align-items:center;gap:9px;padding:7px 0;}
.user-avatar{width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:white;flex-shrink:0;}
.user-name{font-size:13px;font-weight:600;color:var(--dark);}
.user-desc{font-size:11px;color:var(--text-lighter);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.user-posts{font-size:11px;color:var(--text-lighter);margin-left:auto;flex-shrink:0;}
.join-card{background:linear-gradient(135deg,#1a2332,#1e4d35);border-radius:var(--radius);padding:24px 18px;text-align:center;color:white;position:relative;overflow:hidden;}
.join-card::before{content:'';position:absolute;top:-50%;right:-50%;width:180px;height:180px;background:radial-gradient(circle,rgba(39,174,96,.25),transparent 70%);border-radius:50%;}
.join-card h3{font-size:18px;font-weight:900;margin-bottom:6px;position:relative;}
.join-card p{font-size:12px;color:rgba(255,255,255,.55);margin-bottom:16px;position:relative;}
.join-card button{background:var(--accent);color:white;border:none;padding:10px 24px;border-radius:var(--radius-full);font-size:13px;font-weight:700;cursor:pointer;position:relative;box-shadow:0 3px 10px rgba(230,126,34,.4);transition:all .2s;}
.join-card button:hover{transform:translateY(-2px);box-shadow:0 5px 16px rgba(230,126,34,.5);}

/* 布局 */
.layout{display:grid;grid-template-columns:1fr 280px;gap:24px;}




/* 弹窗 */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:1000;justify-content:center;align-items:center;padding:20px;backdrop-filter:blur(4px);display:none;}
.modal-overlay.show{display:flex;}
.modal{background:white;border-radius:20px;max-width:720px;width:100%;max-height:88vh;overflow-y:auto;animation:modalIn .25s ease;}
@keyframes modalIn{from{opacity:0;transform:translateY(16px) scale(.97);}to{opacity:1;transform:translateY(0) scale(1);}}
.modal-header{padding:22px 26px 14px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:flex-start;gap:12px;}
.modal-title{font-size:19px;font-weight:800;color:var(--dark);line-height:1.4;}
.modal-subtitle{font-size:12px;color:var(--text-lighter);margin-top:4px;}
.modal-close{width:34px;height:34px;border-radius:50%;background:var(--bg);display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-light);border:none;font-size:15px;flex-shrink:0;transition:all .2s;}
.modal-close:hover{background:var(--border);}
.modal-body{padding:22px 26px;}
.post-content{font-size:15px;color:var(--text);line-height:2;white-space:pre-line;}
.post-tags{display:flex;flex-wrap:wrap;gap:6px;margin:14px 0;}
.post-tag-item{background:var(--primary-light);color:var(--primary);padding:3px 11px;border-radius:var(--radius-full);font-size:12px;font-weight:500;}
.exp-author{display:flex;align-items:center;gap:11px;padding:14px 0;border-top:1px solid var(--border);margin-top:14px;}
.exp-avatar{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:white;font-size:16px;font-weight:700;}
.exp-name{font-size:14px;font-weight:700;color:var(--dark);}
.exp-label{font-size:12px;color:var(--text-lighter);}
.modal-disclaimer{background:var(--bg);border-radius:var(--radius-sm);padding:12px 14px;font-size:12px;color:var(--text-light);line-height:1.7;margin-top:14px;}
.modal-actions{display:flex;gap:8px;margin-top:18px;}
.btn-action{flex:1;padding:10px;border-radius:var(--radius-sm);font-size:13px;font-weight:600;cursor:pointer;border:none;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:5px;}
.btn-like{background:#fff3e0;color:#e67e22;border:1px solid #ffe0b2;}
.btn-like:hover{background:#ffe0b2;}
.btn-reply{background:var(--primary-light);color:var(--primary);border:1px solid #b7e4c7;}
.btn-reply:hover{background:#b7e4c7;}
.btn-fav{background:var(--bg);color:var(--text-light);border:1px solid var(--border);}
.btn-fav:hover{border-color:var(--primary);color:var(--primary);}

.auth-modal{background:white;border-radius:20px;max-width:370px;width:100%;padding:34px;animation:modalIn .25s ease;position:relative;}
.auth-mode-tabs{display:flex;gap:4px;background:#f0f4f0;border-radius:10px;padding:4px;margin-bottom:20px;}
.auth-tab{flex:1;padding:9px;border:none;background:transparent;border-radius:8px;cursor:pointer;font-size:14px;font-weight:600;color:#666;transition:all .2s;}
.auth-tab.active{background:var(--primary);color:white;box-shadow:0 2px 6px rgba(39,174,96,.3);}
.auth-error{color:#e74c3c;font-size:12px;text-align:center;margin-top:6px;min-height:18px;}
.auth-success{color:#27ae60;font-size:12px;text-align:center;margin-top:6px;min-height:18px;}
.auth-close{position:absolute;top:14px;right:14px;width:30px;height:30px;border-radius:50%;background:var(--bg);border:none;cursor:pointer;color:var(--text-light);font-size:14px;display:flex;align-items:center;justify-content:center;}
.auth-header{text-align:center;margin-bottom:24px;}
.auth-icon{font-size:38px;margin-bottom:8px;}
.auth-title{font-size:20px;font-weight:800;color:var(--dark);}
.auth-sub{font-size:12px;color:var(--text-lighter);margin-top:3px;}
.auth-form input{width:100%;padding:12px 14px;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-size:14px;margin-bottom:11px;outline:none;transition:border-color .2s;}
.auth-form input:focus{border-color:var(--primary);}
.auth-form input::placeholder{color:var(--text-lighter);}
.auth-submit{width:100%;padding:12px;background:linear-gradient(135deg,#27ae60,#1e8449);color:white;border:none;border-radius:var(--radius-sm);font-size:15px;font-weight:700;cursor:pointer;margin:6px 0 14px;box-shadow:0 3px 10px rgba(39,174,96,.3);}
.auth-submit:hover{box-shadow:0 5px 16px rgba(39,174,96,.4);transform:translateY(-1px);}
.auth-footer{text-align:center;font-size:12px;color:var(--text-lighter);}
.auth-footer a{color:var(--primary);font-weight:700;text-decoration:none;}

/* 搜索结果 */
.search-result-card{background:white;border:1.5px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:12px;cursor:pointer;transition:all .25s;}
.search-result-card:hover{border-color:var(--primary);box-shadow:var(--shadow-hover);}
.search-result-type{font-size:11px;font-weight:700;color:white;background:var(--primary);padding:2px 8px;border-radius:var(--radius-full);display:inline-block;margin-bottom:8px;}
.search-result-type.disease-type{background:#27ae60;}
.search-result-type.post-type{background:#e67e22;}
.search-result-title{font-size:16px;font-weight:700;color:var(--dark);margin-bottom:6px;}
.search-result-desc{font-size:13px;color:var(--text-light);}

/* 空状态 */
.empty-state{text-align:center;padding:60px 20px;}
.empty-icon{font-size:56px;margin-bottom:14px;}
.empty-title{font-size:18px;font-weight:700;color:var(--dark);margin-bottom:6px;}
.empty-desc{font-size:13px;color:var(--text-lighter);}

/* 页脚 */
.footer{background:var(--dark);color:rgba(255,255,255,.38);padding:44px 24px 20px;margin-top:40px;}
.footer-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:36px;}
.footer-brand h3{color:white;font-size:17px;font-weight:900;margin-bottom:10px;}
.footer-brand p{font-size:13px;line-height:1.8;}
.footer-col h4{color:rgba(255,255,255,.55);font-size:12px;font-weight:600;margin-bottom:12px;text-transform:uppercase;letter-spacing:1px;}
.footer-col a{display:block;font-size:13px;color:rgba(255,255,255,.32);text-decoration:none;margin-bottom:9px;transition:color .2s;}
.footer-col a:hover{color:rgba(255,255,255,.8);}
.footer-bottom{max-width:1200px;margin:28px auto 0;border-top:1px solid rgba(255,255,255,.06);padding-top:16px;text-align:center;font-size:12px;}

/* 免责声明 */
.disclaimer-wrap{max-width:1200px;margin:0 auto 28px;padding:0 24px;}
.disclaimer-inner{background:#fffbeb;border:1px solid #fde68a;border-radius:var(--radius);padding:13px 18px;font-size:13px;color:#92400e;line-height:1.7;}

/* 动画 */
@keyframes fadeUp{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:translateY(0);}}
.fade-up{animation:fadeUp .4s ease both;}
.fade-up:nth-child(1){animation-delay:.05s;}
.fade-up:nth-child(2){animation-delay:.1s;}
.fade-up:nth-child(3){animation-delay:.15s;}
.fade-up:nth-child(4){animation-delay:.2s;}
.fade-up:nth-child(5){animation-delay:.25s;}
.fade-up:nth-child(6){animation-delay:.3s;}
.fade-up:nth-child(7){animation-delay:.35s;}
.fade-up:nth-child(8){animation-delay:.4s;}
.fade-up:nth-child(9){animation-delay:.45s;}
.fade-up:nth-child(10){animation-delay:.5s;}
.fade-up:nth-child(11){animation-delay:.55s;}
.fade-up:nth-child(12){animation-delay:.6s;}

/* 响应式 */
@media(max-width:1024px){.layout{grid-template-columns:1fr;}.sidebar{display:none;}.dept-grid{grid-template-columns:repeat(3,1fr);}.disease-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:768px){
  .topbar-inner{flex-direction:column;gap:4px;text-align:center;}
  .header-inner{flex-wrap:wrap;height:auto;padding:10px 16px;gap:10px;}
  .nav{order:3;width:100%;overflow-x:auto;}
  .hdr-btn{gap:6px;}
  .btn-ghost,.btn-primary{padding:6px 14px;font-size:12px;}
  .hero{padding:36px 16px 44px;}
  .hero h1{font-size:24px;}
  .hero-stats{gap:20px;}
  .hero-stat-num{font-size:22px;}
  .main{padding:16px;}
  .dept-grid{grid-template-columns:repeat(3,1fr);gap:8px;}
  .disease-grid{grid-template-columns:1fr;}
  .detail-grid{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .footer-inner{grid-template-columns:1fr 1fr;}
}
@media(max-width:480px){
  .hero h1{font-size:20px;}
  .footer-inner{grid-template-columns:1fr;}
  .dept-grid{grid-template-columns:repeat(2,1fr);}
}

/* ===== 回复模块 ===== */
.replies-section {
  border-top: 1px solid #eee;
  margin-top: 16px;
  padding-top: 14px;
}
.replies-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  font-size: 14px;
}
.replies-title {
  font-weight: 600;
  color: #333;
}
.replies-count {
  background: var(--primary);
  color: white;
  border-radius: 20px;
  padding: 1px 8px;
  font-size: 12px;
  font-weight: 600;
}
.reply-list {
  max-height: 300px;
  overflow-y: auto;
  margin-bottom: 12px;
}
.reply-loading, .reply-empty {
  text-align: center;
  color: #999;
  padding: 16px;
  font-size: 14px;
}
.reply-item {
  display: flex;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid #f5f5f5;
}
.reply-item:last-child {
  border-bottom: none;
}
.reply-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #27ae60;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  flex-shrink: 0;
}
.reply-body {
  flex: 1;
}
.reply-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}
.reply-name {
  font-weight: 600;
  font-size: 13px;
  color: #333;
}
.reply-time {
  font-size: 12px;
  color: #999;
}
.reply-content {
  font-size: 14px;
  color: #555;
  line-height: 1.6;
}
.reply-form {
  margin-top: 10px;
}
.reply-textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1.5px solid #d4e8d9;
  border-radius: 10px;
  font-size: 14px;
  resize: vertical;
  font-family: inherit;
  box-sizing: border-box;
  transition: border-color .2s;
}
.reply-textarea:focus {
  outline: none;
  border-color: var(--primary);
}
.reply-actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
  justify-content: flex-end;
}

/* 热点医学事件 筛选按钮 */
.hot-filter-btns{display:flex;flex-wrap:wrap;gap:6px;align-items:center;}
.hot-filter-btn{padding:4px 12px;border-radius:16px;border:1px solid #ddd;font-size:12px;cursor:pointer;background:#fff;color:#666;transition:all 0.2s;}
.hot-filter-btn:hover{background:#fff3e0;color:#ff5722;border-color:#ffb74d;}
.hot-filter-btn.active{background:#ff5722;color:#fff;border-color:#ff5722;}

/* 热点列表卡片 */
/* hot-item 样式已移至 index.html 内联 */
.hot-item:hover{box-shadow:0 3px 10px rgba(0,0,0,0.12);}
.hot-item-rank{font-size:16px;font-weight:bold;color:#ff5722;min-width:28px;text-align:center}
.hot-item-body{flex:1;min-width:0}
.hot-item-title{font-size:13px;color:#333;line-height:1.4;margin-bottom:3px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hot-item-meta{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.hot-item-heat{text-align:center;min-width:36px}

/* 科普标签 */
.science-tags{display:flex;flex-wrap:wrap;gap:6px;align-items:center;}
.science-tag{cursor:pointer;font-size:12px;color:#666;padding:2px 10px;border-radius:10px;transition:all 0.2s;display:inline-block;}
.science-tag:hover{color:#4caf50;background:#e8f5e9;}
.science-tag.active{background:#4caf50;color:#fff;}

/* 科普卡片 */
/* === 科普知识栏 2列大卡片样式 === */
.science-card{background:#fff;border-radius:12px;padding:12px 14px;border:1px solid #e8f5e9;display:flex;flex-direction:column;gap:6px;cursor:pointer;transition:all .2s;min-height:100px}
.science-cat-badge{display:inline-block;font-size:11px;color:#27ae60;background:#e8f5e9;padding:2px 8px;border-radius:10px;align-self:flex-start}
.science-title{font-size:14px;font-weight:600;color:#1a1a2e;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.science-summary{font-size:12px;color:#666;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.science-footer{display:flex;align-items:center;gap:8px;margin-top:auto;font-size:12px;color:#999}
.science-views{white-space:nowrap}
.science-card:hover{box-shadow:0 3px 10px rgba(39,174,96,.15)!important;border-color:#27ae60!important;}

/* ===== 今日热点 热度条 ===== */
.hot-heat-bar{height:4px;background:#f0f0f0;border-radius:2px;margin-top:8px;overflow:hidden}
.hot-heat-fill{height:100%;background:linear-gradient(90deg,#ef4444,#f97316);border-radius:2px;transition:width .3s}
.hot-heat-bar-small{flex-shrink:0;width:60px;height:3px;background:#f0f0f0;border-radius:2px;overflow:hidden;margin-top:4px}
.hot-cat-tag{display:inline-block;background:#fee2e2;color:#dc2626;font-size:11px;padding:2px 8px;border-radius:999px}
/* ===== 今日热点 TOP3卡片 ===== */
.hot-top-card{display:flex;align-items:flex-start;gap:10px;background:linear-gradient(135deg,#fff5f5,#fff);border-radius:12px;padding:14px;border:1px solid #fee2e2;cursor:pointer;transition:all .2s}
.hot-top-card:hover{transform:translateY(-2px);box-shadow:0 4px 16px rgba(239,68,68,.15)}
.hot-top-rank{font-size:22px;flex-shrink:0;width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:#fef2f2;border-radius:50%}
.hot-top-body{flex:1}
.hot-top-title{font-size:14px;font-weight:600;color:#1a1a2e;line-height:1.4;margin-bottom:6px}
.hot-top-meta{font-size:12px;color:#888;display:flex;gap:8px;align-items:center}
/* ===== 今日热点列表项 ===== */



.hot-item-title{font-size:13px;font-weight:500;color:#333;line-height:1.4;margin-bottom:4px}
.hot-item-meta{font-size:12px;color:#888;display:flex;gap:8px;align-items:center}
/* ===== 弹窗 ===== */

.modal-content{background:#fff;border-radius:16px;max-width:580px;width:100%;max-height:80vh;overflow-y:auto;padding:28px;position:relative;box-shadow:0 20px 60px rgba(0,0,0,.2);animation:modalIn .2s ease}
@keyframes modalIn{from{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}
.modal-close{position:absolute;top:16px;right:16px;background:none;border:none;font-size:20px;cursor:pointer;color:#999;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .2s}
.modal-close:hover{background:#f0f0f0;color:#333}
.modal-cat-tag{display:inline-block;background:linear-gradient(135deg,#10b981,#059669);color:#fff;font-size:12px;padding:3px 10px;border-radius:999px;margin-bottom:10px}
.modal-title{font-size:20px;font-weight:700;color:#1a1a2e;margin:8px 0 12px;line-height:1.4}
.modal-meta{color:#888;font-size:13px;margin-bottom:16px;padding-bottom:16px;border-bottom:1px solid #f0f0f0}
.modal-body{color:#444;line-height:1.8;font-size:15px}
.science-modal-icon{font-size:48px;margin-bottom:8px}.hidden-extra{display:none!important}
#hotList .hidden-extra,#hotTop3 .hidden-extra,.science-grid2 .hidden-extra{display:none!important}
.show-more-btn{text-align:center;padding:12px;color:#3498db;cursor:pointer;font-size:14px;border-top:1px solid #eee}
.show-more-btn:hover{color:#e74c3c}

/* ========== 固定弹窗（复用模式，解决第二次弹不出问题）========== */
.modal-overlay-fixed { display:none; position:fixed; top:0; left:0; right:0; bottom:0; background:rgba(0,0,0,0.6); z-index:9999; justify-content:center; align-items:center; padding:20px; overflow-y:auto; }
.modal-overlay-fixed.show { display:flex; }
.modal-content-fixed { background:#fff; border-radius:16px; max-width:600px; width:100%; padding:28px 24px; position:relative; box-shadow:0 8px 32px rgba(0,0,0,0.2); max-height:85vh; overflow-y:auto; }
.modal-close-fixed { position:absolute; top:12px; right:14px; background:none; border:none; font-size:24px; cursor:pointer; color:#999; line-height:1; padding:4px; }
.modal-close-fixed:hover { color:#333; }