*{margin:0;padding:0;box-sizing:border-box;}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;background:#f0f2f5;color:#333;line-height:1.6;}
a{color:inherit;text-decoration:none;}
.container{max-width:1200px;margin:0 auto;padding:0 16px;}

/* Header */
.site-header{background:#fff;box-shadow:0 1px 8px rgba(0,0,0,.06);position:sticky;top:0;z-index:100;}
.header-inner{display:flex;align-items:center;height:60px;gap:20px;}
.logo{display:flex;align-items:center;gap:8px;font-size:18px;font-weight:700;color:#4d6bff;white-space:nowrap;}
.logo i{font-size:24px;}
.main-nav{display:flex;gap:4px;flex:1;}
.main-nav a{padding:8px 14px;border-radius:8px;font-size:14px;color:#555;transition:.2s;}
.main-nav a:hover,.main-nav a.active{background:#eef2ff;color:#4d6bff;}
.nav-dropdown{position:relative;}
.nav-dropdown-trigger{display:inline-flex;align-items:center;gap:4px;padding:8px 14px;border-radius:8px;font-size:14px;color:#555;transition:.2s;}
.nav-dropdown-trigger:hover{background:#eef2ff;color:#4d6bff;}
.nav-dropdown-menu{display:none;position:absolute;top:100%;left:0;background:#fff;border-radius:8px;box-shadow:0 4px 20px rgba(0,0,0,.12);min-width:140px;padding:6px;z-index:200;margin-top:4px;}
.nav-dropdown:hover .nav-dropdown-menu{display:block;}
.nav-dropdown-menu a{display:block;padding:8px 14px;border-radius:6px;font-size:14px;color:#555;}
.nav-dropdown-menu a:hover{background:#f5f5f5;color:#4d6bff;}
.nav-dropdown-menu a.active{background:#eef2ff;color:#4d6bff;}
.header-actions{display:flex;align-items:center;gap:8px;}
.header-search{display:flex;align-items:center;gap:0;border:1.5px solid #e0e0e0;border-radius:20px;overflow:hidden;background:#f8f9fa;transition:.2s;flex:0 0 240px;order:2;}
.header-actions{order:3;}
.header-search:focus-within{border-color:#4d6bff;box-shadow:0 0 0 3px rgba(77,107,255,.1);}
.header-search input{flex:1;border:none;background:transparent;padding:6px 14px;font-size:13px;outline:none;min-width:0;}
.header-search button{border:none;background:none;cursor:pointer;padding:6px 12px;color:#888;font-size:14px;flex-shrink:0;}
.header-search button:hover{color:#4d6bff;}
.mobile-menu-toggle{display:none;background:none;border:none;font-size:22px;cursor:pointer;color:#555;}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;border:none;transition:.2s;}
.btn-primary{background:#4d6bff;color:#fff;}
.btn-primary:hover{background:#3a5aff;}
.btn-outline{border:1.5px solid #4d6bff;color:#4d6bff;background:#fff;}
.btn-outline:hover{background:#eef2ff;}
.btn-success{background:#00b755;color:#fff;}
.btn-success:hover{background:#00a04a;}
.btn-danger{background:#e8312f;color:#fff;}
.btn-sm{padding:6px 14px;font-size:13px;}

/* User Menu */
.user-menu{position:relative;cursor:pointer;}
.user-menu::after{content:'';position:absolute;top:100%;left:0;right:0;height:8px;}
.dropdown-menu-user{display:none;position:absolute;right:0;top:calc(100% + 8px);background:#fff;border-radius:10px;box-shadow:0 4px 20px rgba(0,0,0,.12);min-width:160px;padding:6px;z-index:200;}
.user-menu:hover .dropdown-menu-user,.dropdown-menu-user:hover{display:block;}
.dropdown-menu-user a{display:flex;align-items:center;gap:8px;padding:8px 14px;border-radius:6px;font-size:14px;color:#555;}
.dropdown-menu-user a:hover{background:#f5f5f5;}
.dropdown-header{padding:8px 14px;font-size:13px;color:#999;border-bottom:1px solid #eee;margin-bottom:4px;}
.text-danger{color:#e8312f !important;}

/* Cards */
.card{background:#fff;border-radius:12px;box-shadow:0 1px 6px rgba(0,0,0,.05);padding:20px;margin-bottom:16px;}
.card-title{font-size:16px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px;}

/* Grid */
.post-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;}
.post-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 1px 6px rgba(0,0,0,.06);transition:.2s;cursor:pointer;}
.post-card:hover{box-shadow:0 4px 20px rgba(0,0,0,.12);transform:translateY(-2px);}
.post-card-cover{width:100%;aspect-ratio:2/3;object-fit:cover;background:#f0f0f0;}
.post-card-cover-placeholder{width:100%;aspect-ratio:2/3;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;font-size:48px;}
.post-card-body{padding:14px;}
.post-card-title{font-size:15px;font-weight:600;line-height:1.4;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:6px;}
.post-card-meta{display:flex;align-items:center;gap:4px;font-size:12px;color:#999;}
.post-card-cats{display:flex;gap:4px;flex-wrap:wrap;}
.post-card-stats{margin-left:auto;}
.post-card-cat{display:inline-block;padding:2px 8px;border-radius:4px;font-size:11px;font-weight:600;color:#4d6bff;background:#eef2ff;}
.post-card-cat.sub{color:#6b7280;background:#f3f4f6;}
.post-card-stats{display:flex;gap:10px;}
.post-card-stats span{display:flex;align-items:center;gap:3px;}

/* Forms */
.form-group{margin-bottom:18px;}
.form-label{display:block;font-size:14px;font-weight:600;color:#555;margin-bottom:8px;}
.form-input,.form-textarea,.form-select{width:100%;padding:10px 14px;border:1.5px solid #e0e0e0;border-radius:8px;font-size:14px;transition:.2s;background:#fff;}
.form-input:focus,.form-textarea:focus,.form-select:focus{outline:none;border-color:#4d6bff;box-shadow:0 0 0 3px rgba(77,107,255,.1);}
.form-input:read-only{background:#f5f5f5;cursor:not-allowed;}
.form-textarea{resize:vertical;min-height:100px;}

/* Auth Page */
.auth-page{display:flex;align-items:center;justify-content:center;min-height:calc(100vh - 60px - 60px);padding:20px;}
.auth-card{background:#fff;border-radius:16px;box-shadow:0 4px 30px rgba(0,0,0,.1);padding:40px;max-width:420px;width:100%;}
.auth-title{text-align:center;font-size:24px;font-weight:700;margin-bottom:28px;color:#333;}
.auth-tabs{display:flex;gap:0;margin-bottom:28px;background:#f5f5f5;border-radius:10px;padding:4px;}
.auth-tab{flex:1;text-align:center;padding:10px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:.2s;color:#999;}
.auth-tab.active{background:#fff;color:#4d6bff;box-shadow:0 1px 4px rgba(0,0,0,.1);}
.auth-form button{width:20px 0;padding:12px;font-size:15px;}
.auth-form .btn{width:100%;justify-content:center;padding:12px;}

/* New Post Page */
.new-post-wrap{display:grid;grid-template-columns:1fr 340px;gap:20px;padding:20px 0;}
.new-post-main{min-height:400px;}
.douban-widget{background:#fff;border-radius:12px;padding:18px;margin-bottom:16px;box-shadow:0 1px 6px rgba(0,0,0,.05);}
.douban-widget-title{font-size:15px;font-weight:700;margin-bottom:10px;display:flex;align-items:center;gap:6px;}
.douban-widget-desc{font-size:13px;color:#999;margin-bottom:12px;}
.douban-search-row{display:flex;gap:8px;margin-bottom:10px;}
.douban-search-row .form-input{flex:1;}
.douban-search-results{max-height:400px;overflow-y:auto;border-radius:6px;}
.douban-item{display:flex;align-items:center;padding:8px 6px;border-bottom:1px solid rgba(0,0,0,.06);transition:.2s;}
.douban-item:hover{background:rgba(0,0,0,.03);}
.douban-item img{width:38px;height:54px;object-fit:cover;border-radius:4px;flex-shrink:0;margin-right:10px;}
.douban-item-info{flex:1;min-width:0;}
.douban-item-title{font-weight:600;font-size:14px;}
.douban-item-year{color:#999;font-size:12px;margin-top:2px;}
.douban-loading{text-align:center;padding:20px;color:#999;}
.douban-empty{padding:16px;text-align:center;color:#999;font-size:13px;}

/* Post Detail */
.post-detail{padding:20px 0;}
.post-detail-header{background:#fff;border-radius:12px;padding:24px;margin-bottom:16px;box-shadow:0 1px 6px rgba(0,0,0,.05);}
.post-detail-title{font-size:24px;font-weight:700;margin-bottom:10px;}
.post-detail-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:#999;flex-wrap:wrap;}
.post-detail-content{background:#fff;border-radius:12px;padding:24px;margin-bottom:20px;box-shadow:0 1px 6px rgba(0,0,0,.05);line-height:1.8;}
.post-detail-content img{max-width:100%;border-radius:8px;margin:8px 0;}
.post-detail-content h3{font-size:18px;font-weight:700;margin:16px 0 8px;}

/* Netdisk Section */
.netdisk-section{background:#fff;border-radius:12px;padding:24px;margin-bottom:20px;box-shadow:0 1px 6px rgba(0,0,0,.05);}
.netdisk-section h3{font-size:20px;font-weight:700;text-align:center;margin-bottom:20px;}
.netdisk-tabs{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-bottom:20px;}
.netdisk-tab{display:inline-block;padding:8px 14px;border:1.5px solid #ddd;border-radius:25px;background:#fff;color:#666;font-size:14px;font-weight:600;cursor:pointer;white-space:nowrap;margin:3px;transition:.2s;}
.netdisk-tab.active{color:#fff !important;}
.netdisk-tab .tab-count{font-weight:400;opacity:.8;font-size:12px;}
.netdisk-pane{display:none;}
.netdisk-link-item{display:flex;align-items:center;gap:14px;padding:14px 18px;background:#fff;border:1px solid #eee;border-radius:12px;margin-bottom:10px;transition:.2s;}
.netdisk-link-item:hover{box-shadow:0 2px 10px rgba(0,0,0,.06);}
.netdisk-link-desc{font-weight:bold;color:#000;font-size:15px;line-height:1.4;word-break:break-all;}
.netdisk-link-info{font-size:12px;color:#999;margin-top:6px;display:flex;flex-wrap:wrap;gap:4px 10px;align-items:center;}
.netdisk-link-info .username{font-weight:bold;color:#333;}
.netdisk-link-actions{display:flex;gap:6px;align-items:center;flex-shrink:0;}
.netdisk-go-btn{padding:8px 22px;font-size:14px;font-weight:600;border-radius:8px;color:#fff !important;text-decoration:none;display:inline-flex;align-items:center;gap:6px;}
.netdisk-views{display:inline-flex;align-items:center;gap:4px;font-size:13px;color:#aaa;background:#f5f5f5;padding:6px 10px;border-radius:8px;}
.netdisk-empty{padding:30px;text-align:center;color:#bbb;font-size:14px;background:#fafafa;border-radius:12px;border:2px dashed #eee;}
.netdisk-add-area{text-align:center;margin-top:20px;}
.netdisk-login-area{text-align:center;margin-top:20px;padding:14px;background:#fff3e0;border-radius:12px;color:#e65100;font-size:14px;cursor:pointer;}

/* Mobile netdisk layout */
@media (max-width:767px){
    .netdisk-link-item{flex-direction:column;align-items:stretch;gap:12px;padding:14px 16px;}
    .netdisk-link-item .netdisk-link-info{flex-direction:column;align-items:flex-start;gap:8px;}
    .netdisk-link-actions{flex-wrap:wrap;justify-content:flex-start;}
}

/* Modal */
.modal-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.5);z-index:9999;align-items:center;justify-content:center;overflow-y:auto;padding:20px;}
.modal-overlay.show{display:flex;}
.modal-box{background:#fff;border-radius:12px;width:95%;max-width:560px;padding:28px;box-shadow:0 8px 32px rgba(0,0,0,.2);margin:auto;}
.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;}
.modal-header h3{font-size:20px;font-weight:bold;}
.modal-close{background:none;border:none;font-size:28px;cursor:pointer;color:#999;line-height:1;padding:0;}
.modal-close:hover{color:#333;}
.modal-body .form-group{margin-bottom:20px;}
.smart-input{border:2px dashed #4d8aff !important;}
.smart-input:focus{border-style:solid !important;}
.smart-tip{font-size:13px;margin-top:6px;}
.modal-footer{text-align:right;}
.modal-footer .btn{margin-left:8px;}

/* Empty state */
.empty-state{text-align:center;padding:60px 20px;color:#999;}
.empty-state i{font-size:64px;color:#ddd;margin-bottom:16px;}
.empty-state p{font-size:16px;}

/* Pagination */
.pagination{display:flex;justify-content:center;gap:6px;padding:20px 0;}
.pagination a,.pagination span{display:inline-flex;align-items:center;justify-content:center;min-width:36px;height:36px;padding:0 10px;border-radius:8px;font-size:14px;border:1px solid #e0e0e0;}
.pagination a:hover{background:#f5f5f5;}
.pagination .current{background:#4d6bff;color:#fff;border-color:#4d6bff;}

/* Profile */
.profile-wrap{padding:20px 0;}
.profile-header{display:flex;align-items:center;gap:20px;padding:24px;margin-bottom:20px;}
.profile-avatar img,.profile-avatar .avatar-img{width:64px;height:64px;border-radius:50%;object-fit:cover;}
.profile-info h2{font-size:22px;margin-bottom:8px;}
.profile-stats{display:flex;gap:20px;font-size:14px;color:#666;}
.profile-stats span{display:inline-flex;align-items:center;gap:5px;}
.profile-section{margin-top:20px;}
.profile-section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;flex-wrap:wrap;gap:12px;}
.profile-section-header h3{font-size:18px;font-weight:700;}
.profile-search{display:flex;gap:8px;align-items:center;}
.profile-search .form-input{width:240px;}

/* Responsive */
@media (max-width:991px){
 .header-inner{flex-wrap:wrap;height:auto;padding:8px 0;gap:8px;}
 .logo{font-size:16px;order:1;}
 .header-search{flex:1 1 auto;order:2;max-width:none;min-width:0;}
 .header-actions{order:3;gap:6px;flex-shrink:0;}
 .main-nav{display:flex;order:4;flex:0 0 100%;overflow-x:auto;flex-wrap:nowrap;gap:4px;padding:4px 0;border-top:1px solid #eee;margin-top:4px;-webkit-overflow-scrolling:touch;}
 .main-nav a,.nav-dropdown-trigger{white-space:nowrap;padding:6px 10px;font-size:13px;}
 .nav-dropdown-menu{display:none !important;position:fixed;top:auto;left:auto;min-width:120px;}
 .nav-dropdown:hover .nav-dropdown-menu{display:block !important;}
}
@media (max-width:575px){
 .header-search{min-width:0;}
 .header-actions .btn span,.header-actions .btn i+span{display:none;}
 .post-grid{grid-template-columns:repeat(2,1fr);gap:10px;}
 .post-card-body{padding:10px;}
 .post-card-title{font-size:13px;}
 .auth-card{padding:24px;}
 .modal-box{padding:20px;}
}