/* ==================== Reset & Base ==================== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:14px;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Noto Sans CJK SC','Microsoft YaHei',sans-serif;background:#fff;color:#1D2129;line-height:1.6;min-height:100vh}
a{color:#165DFF;text-decoration:none;transition:color .2s}
a:hover{color:#4080FF}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:none;outline:none;background:none}
input,textarea,select{font-family:inherit;font-size:inherit;outline:none}
ul,ol{list-style:none}
svg{display:inline-block;vertical-align:middle}
h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.4}

/* ==================== 主题变量 ==================== */
:root{
  --primary:#165DFF;
  --primary-hover:#4080FF;
  --primary-light:#E8F3FF;
  --primary-bg:#F2F9FF;
  --success:#00B42A;
  --success-bg:#E8FFEA;
  --warning:#FF7D00;
  --warning-bg:#FFF7E8;
  --danger:#F53F3F;
  --danger-bg:#FFECE8;
  --info:#86909C;
  --text-1:#1D2129;
  --text-2:#4E5969;
  --text-3:#86909C;
  --text-4:#C9CDD4;
  --bg-1:#fff;
  --bg-2:#F7F8FA;
  --bg-3:#F2F3F5;
  --border-1:#E5E6EB;
  --border-2:#C9CDD4;
  --radius-sm:4px;
  --radius-md:6px;
  --radius-lg:8px;
  --shadow-sm:0 1px 3px rgba(0,0,0,.06);
  --shadow-md:0 2px 8px rgba(0,0,0,.08);
  --shadow-lg:0 4px 16px rgba(0,0,0,.1);
  --navbar-height:56px;
  --max-width:1200px;
}

/* ==================== 布局 ==================== */
.container{max-width:var(--max-width);margin:0 auto;padding:0 16px}
.page-wrap{min-height:calc(100vh - var(--navbar-height));padding:24px 0}

/* ==================== 按钮 ==================== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:0 16px;height:36px;font-size:14px;border-radius:var(--radius-md);transition:all .2s;white-space:nowrap;line-height:1}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-hover)}
.btn-primary:active{background:#0E42D2}
.btn-secondary{background:var(--primary-light);color:var(--primary)}
.btn-secondary:hover{background:#D6E8FF}
.btn-outline{border:1px solid var(--border-1);color:var(--text-2);background:#fff}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.btn-danger{background:var(--danger);color:#fff}
.btn-danger:hover{background:#FF5F5F}
.btn-ghost{color:var(--text-2)}
.btn-ghost:hover{background:var(--bg-3)}
.btn-text{color:var(--primary);padding:0 8px;height:auto;font-size:14px}
.btn-text:hover{color:var(--primary-hover)}
.btn-sm{height:28px;padding:0 12px;font-size:13px}
.btn-lg{height:44px;padding:0 24px;font-size:15px}
.btn-block{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* ==================== 输入框 ==================== */
.input,.textarea,.select{width:100%;padding:0 12px;height:36px;border:1px solid var(--border-1);border-radius:var(--radius-sm);background:#fff;color:var(--text-1);font-size:14px;transition:border-color .2s}
.input:focus,.textarea:focus,.select:focus{border-color:var(--primary)}
.input::placeholder,.textarea::placeholder{color:var(--text-4)}
.textarea{padding:8px 12px;height:auto;min-height:100px;resize:vertical;line-height:1.6}
.input-group{margin-bottom:16px}
.input-group label{display:block;margin-bottom:6px;font-size:14px;color:var(--text-2);font-weight:500}
.input-group .hint{font-size:12px;color:var(--text-3);margin-top:4px}

/* ==================== 卡片 ==================== */
.card{background:#fff;border:1px solid var(--border-1);border-radius:var(--radius-lg);overflow:hidden;transition:box-shadow .2s}
.card:hover{box-shadow:var(--shadow-md)}
.card-body{padding:16px}
.card-title{font-size:15px;font-weight:600;color:var(--text-1);margin-bottom:8px}
.card-desc{font-size:13px;color:var(--text-3);line-height:1.5}

/* ==================== 网格 ==================== */
.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:768px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
}

/* ==================== 标签/徽章 ==================== */
.tag{display:inline-flex;align-items:center;padding:0 8px;height:22px;font-size:12px;border-radius:3px;line-height:1}
.tag-primary{background:var(--primary-light);color:var(--primary)}
.tag-success{background:var(--success-bg);color:var(--success)}
.tag-warning{background:var(--warning-bg);color:var(--warning)}
.tag-danger{background:var(--danger-bg);color:var(--danger)}
.tag-info{background:var(--bg-3);color:var(--text-3)}

/* ==================== 表格 ==================== */
.table{width:100%;border-collapse:collapse;font-size:14px}
.table th{background:var(--bg-2);padding:10px 12px;text-align:left;font-weight:500;color:var(--text-2);border-bottom:1px solid var(--border-1);white-space:nowrap}
.table td{padding:10px 12px;border-bottom:1px solid var(--border-1);color:var(--text-1)}
.table tr:hover td{background:var(--bg-2)}

/* ==================== 分页 ==================== */
.pagination{display:flex;align-items:center;gap:4px;justify-content:center;margin-top:24px}
.pagination .page-btn{min-width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border-1);border-radius:var(--radius-sm);font-size:13px;color:var(--text-2);cursor:pointer;transition:all .2s;padding:0 8px}
.pagination .page-btn:hover:not(.disabled):not(.active){border-color:var(--primary);color:var(--primary)}
.pagination .page-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.pagination .page-btn.disabled{opacity:.4;cursor:not-allowed}

/* ==================== 弹窗/抽屉 ==================== */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:1000;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .2s}
.modal-overlay.show{opacity:1}
.modal{background:#fff;border-radius:var(--radius-lg);width:90%;max-width:480px;max-height:85vh;overflow:hidden;display:flex;flex-direction:column;transform:translateY(-20px);transition:transform .2s;box-shadow:var(--shadow-lg)}
.modal-overlay.show .modal{transform:translateY(0)}
.modal-header{padding:16px 20px;border-bottom:1px solid var(--border-1);display:flex;align-items:center;justify-content:between;gap:12px}
.modal-header h3{flex:1;font-size:16px;font-weight:600}
.modal-close{width:24px;height:24px;display:flex;align-items:center;justify-content:center;border-radius:3px;color:var(--text-3);font-size:18px}
.modal-close:hover{background:var(--bg-3);color:var(--text-1)}
.modal-body{padding:20px;overflow-y:auto;flex:1}
.modal-footer{padding:12px 20px;border-top:1px solid var(--border-1);display:flex;justify-content:flex-end;gap:8px}

.drawer-overlay{position:fixed;inset:0;background:rgba(0,0,0,.3);z-index:999;opacity:0;transition:opacity .2s}
.drawer-overlay.show{opacity:1}
.drawer{position:fixed;top:0;right:0;bottom:0;width:280px;background:#fff;z-index:1000;transform:translateX(100%);transition:transform .25s;box-shadow:var(--shadow-lg);display:flex;flex-direction:column}
.drawer.show{transform:translateX(0)}
.drawer-header{padding:20px;border-bottom:1px solid var(--border-1)}
.drawer-body{flex:1;overflow-y:auto;padding:8px}
.drawer-item{display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:var(--radius-md);cursor:pointer;color:var(--text-2);transition:all .15s}
.drawer-item:hover{background:var(--primary-light);color:var(--primary)}
.drawer-item svg{width:18px;height:18px;flex-shrink:0}

/* ==================== 消息提示 ==================== */
.message-container{position:fixed;top:16px;left:50%;transform:translateX(-50%);z-index:2000;display:flex;flex-direction:column;gap:8px;align-items:center}
.message{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:var(--radius-md);font-size:14px;box-shadow:var(--shadow-md);animation:slideIn .3s ease;max-width:90vw}
.message-success{background:var(--success-bg);color:var(--success)}
.message-error{background:var(--danger-bg);color:var(--danger)}
.message-warning{background:var(--warning-bg);color:var(--warning)}
.message-info{background:var(--bg-1);color:var(--text-1);border:1px solid var(--border-1)}
@keyframes slideIn{from{transform:translateY(-100%);opacity:0}to{transform:translateY(0);opacity:1}}

/* ==================== Loading ==================== */
.loading-bar{position:fixed;top:0;left:0;height:2px;background:var(--primary);z-index:3000;transition:width .3s,opacity .3s;width:0;opacity:0}
.loading-bar.active{opacity:1;animation:loadingPulse 1.5s ease-in-out infinite}
@keyframes loadingPulse{0%{width:0}50%{width:70%}100%{width:100%}}
.skeleton{background:linear-gradient(90deg,var(--bg-2) 25%,var(--bg-3) 37%,var(--bg-2) 63%);background-size:400% 100%;animation:shimmer 1.4s ease infinite;border-radius:var(--radius-sm)}
@keyframes shimmer{0%{background-position:100% 50%}100%{background-position:0 50%}}
.skeleton-block{height:16px;margin-bottom:8px}
.spin{display:inline-block;width:16px;height:16px;border:2px solid var(--border-1);border-top-color:var(--primary);border-radius:50%;animation:spin .6s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.loading-text{display:flex;align-items:center;gap:8px;color:var(--text-3);justify-content:center;padding:32px}

/* ==================== 空状态 ==================== */
.empty{text-align:center;padding:48px 16px;color:var(--text-3)}
.empty svg{width:64px;height:64px;opacity:.3;margin-bottom:12px}
.empty p{font-size:14px}

/* ==================== 头像 ==================== */
.avatar{border-radius:50%;object-fit:cover;background:var(--bg-3);flex-shrink:0}
.avatar-sm{width:28px;height:28px}
.avatar-md{width:36px;height:36px}
.avatar-lg{width:48px;height:48px}
.avatar-xl{width:64px;height:64px}

/* ==================== 用户徽章 ==================== */
.badge{display:inline-flex;align-items:center;gap:4px;padding:1px 6px;height:18px;font-size:11px;border-radius:3px;font-weight:500}
.badge-admin{background:#FF7D00;color:#fff}
.badge-moderator{background:var(--primary);color:#fff}
.badge-banned{background:var(--danger);color:#fff}
.badge-verified{color:#165DFF;display:inline-flex;align-items:center;vertical-align:middle}
.badge-verified svg{width:14px;height:14px}

/* 用户标签容器：自动换行+对齐 */
.user-badges{display:inline-flex;align-items:center;gap:4px;flex-wrap:wrap;vertical-align:middle}
.user-badges > *{flex-shrink:0}

/* ==================== 导航栏 ==================== */
.navbar{position:fixed;top:0;left:0;right:0;height:var(--navbar-height);background:#fff;border-bottom:1px solid var(--border-1);z-index:100;display:flex;align-items:center}
.navbar-inner{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 16px;display:flex;align-items:center;height:100%;gap:24px}
.navbar-logo{display:flex;align-items:center;gap:8px;font-size:16px;font-weight:700;color:var(--text-1);flex-shrink:0}
.navbar-logo img{width:32px;height:32px}
.navbar-nav{display:flex;align-items:center;gap:4px;flex:1}
.navbar-link{padding:6px 14px;border-radius:var(--radius-md);font-size:14px;color:var(--text-2);cursor:pointer;transition:all .2s;white-space:nowrap}
.navbar-link:hover{color:var(--primary);background:var(--primary-light)}
.navbar-link.active{color:var(--primary);background:var(--primary-light);font-weight:500}
.navbar-right{display:flex;align-items:center;gap:12px}
.navbar-search{display:flex;align-items:center;gap:6px;background:var(--bg-2);border:1px solid transparent;border-radius:var(--radius-md);padding:0 12px;height:32px;transition:border-color .2s;cursor:text}
.navbar-search:focus-within{border-color:var(--primary);background:#fff}
.navbar-search input{border:none;background:none;flex:1;font-size:13px;color:var(--text-1);width:140px}
.navbar-search input::placeholder{color:var(--text-4)}
.navbar-avatar{width:32px;height:32px;border-radius:50%;cursor:pointer;border:2px solid transparent;transition:border-color .2s}
.navbar-avatar:hover{border-color:var(--primary)}
.navbar-hamburger{display:none;width:32px;height:32px;align-items:center;justify-content:center;border-radius:var(--radius-sm);color:var(--text-1)}

/* 移动端导航 */
@media(max-width:768px){
  .navbar-nav{display:none}
  .navbar-search{display:none}
  .navbar-hamburger{display:flex}
  .navbar-right{gap:8px;margin-left:auto}
  .page-wrap{padding:16px 0}
  .container{padding:0 12px}
  .modal{width:95%;max-height:80vh}
  .grid-2{grid-template-columns:1fr}
}

/* 移动端菜单 */
.mobile-menu{position:fixed;top:var(--navbar-height);left:0;right:0;background:#fff;border-bottom:1px solid var(--border-1);z-index:99;padding:8px 16px;display:none;box-shadow:var(--shadow-sm)}
.mobile-menu.show{display:block}
.mobile-menu .navbar-link{display:block;padding:12px 14px;margin-bottom:4px}
.mobile-menu .mobile-search{margin:8px 0 12px}
.mobile-menu .mobile-user-area{padding:8px 14px;border-bottom:1px solid var(--border-1);margin-bottom:8px}

/* 移动端用户头像（点击展开下拉） */
.mobile-avatar{width:32px;height:32px;border-radius:50%;cursor:pointer;border:2px solid transparent;transition:border-color .2s}
.mobile-avatar:hover{border-color:var(--primary)}

/* ==================== 内容区域 ==================== */
.section-title{font-size:18px;font-weight:600;color:var(--text-1);margin-bottom:16px;display:flex;align-items:center;justify-content:space-between;padding-bottom:10px;border-bottom:1px solid var(--border-1)}
.section-title a{font-size:13px;font-weight:400}
.section-block{margin-bottom:32px;border:1px solid var(--border-1);border-radius:var(--radius-md);padding:16px;background:#fff}
.section-block .section-block-title{font-size:16px;font-weight:600;margin-bottom:12px;padding-bottom:8px;border-bottom:1px solid var(--border-1)}

/* ==================== 工作室列表 ==================== */
.workshop-group{margin-bottom:32px;border:1px solid var(--border-1);border-radius:var(--radius-md);padding:16px;background:#fff}
.workshop-group-header{display:flex;align-items:center;gap:8px;margin-bottom:16px;font-size:16px;font-weight:600;padding-bottom:10px;border-bottom:1px solid var(--border-1)}
.workshop-level-tag{padding:2px 10px;border-radius:3px;font-size:12px;font-weight:500}
.workshop-card{display:flex;align-items:center;gap:12px;padding:12px;border:1px solid var(--border-1);border-radius:var(--radius-md);transition:box-shadow .2s}
.workshop-card:hover{box-shadow:var(--shadow-sm)}

/* 工作室申请项 */
.workshop-application-item{display:flex;align-items:center;gap:12px;padding:12px;border:1px solid var(--border-1);border-radius:var(--radius-md);margin-bottom:8px}
.workshop-application-item .app-actions{margin-left:auto;display:flex;gap:8px}
.workshop-apply-section{border:1px solid var(--border-1);border-radius:var(--radius-md);padding:16px;background:var(--bg-2)}

/* ==================== 作品详情 iframe ==================== */
.work-frame{width:100%;height:70vh;border:1px solid var(--border-1);border-radius:var(--radius-lg);background:#fff}

/* ==================== 帖子列表项 ==================== */
.post-item{display:flex;align-items:flex-start;gap:12px;padding:16px 0;border-bottom:1px solid var(--border-1)}
.post-item:last-child{border-bottom:none}
.post-item-main{flex:1;min-width:0}
.post-item-title{font-size:15px;font-weight:500;color:var(--text-1);margin-bottom:6px;cursor:pointer;transition:color .2s}
.post-item-title:hover{color:var(--primary)}
.post-item-meta{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--text-3);flex-wrap:wrap}
.post-item-stats{display:flex;align-items:center;gap:4px}

/* ==================== 评论区 ==================== */
.comment-item{display:flex;gap:12px;padding:16px 0;border-bottom:1px solid var(--border-1)}
.comment-item:last-child{border-bottom:none}
.comment-body{flex:1;min-width:0}
.comment-meta{display:flex;align-items:center;gap:8px;margin-bottom:6px;flex-wrap:wrap}
.comment-content{font-size:14px;color:var(--text-1);line-height:1.6;word-break:break-word}

/* ==================== 用户信息 ==================== */
.user-info-inline{display:inline-flex;align-items:center;gap:6px}
.user-link{display:inline-flex;align-items:center;gap:6px;cursor:pointer;color:var(--text-2);font-size:13px}
.user-link:hover{color:var(--primary)}
.user-name-link{display:inline-flex;align-items:center;gap:4px;cursor:pointer;color:var(--text-2);font-size:13px}
.user-name-link:hover{color:var(--primary)}

/* ==================== 管理后台布局 ==================== */
.admin-layout{display:flex;gap:0;min-height:calc(100vh - var(--navbar-height))}
.admin-sidebar{width:200px;background:#fff;border-right:1px solid var(--border-1);padding:16px 0;flex-shrink:0}
.admin-sidebar-item{display:flex;align-items:center;gap:8px;padding:10px 20px;font-size:14px;color:var(--text-2);cursor:pointer;transition:all .15s;border-left:3px solid transparent}
.admin-sidebar-item:hover{background:var(--bg-2)}
.admin-sidebar-item.active{background:var(--primary-light);color:var(--primary);border-left-color:var(--primary);font-weight:500}
.admin-content{flex:1;padding:24px;overflow-y:auto}
@media(max-width:768px){
  .admin-sidebar{width:140px}
  .admin-content{padding:16px}
}

/* ==================== 轮播 ==================== */
.carousel{position:relative;width:100%;height:200px;border-radius:var(--radius-lg);overflow:hidden;margin-bottom:24px}
.carousel-item{position:absolute;inset:0;opacity:0;transition:opacity .5s}
.carousel-item.active{opacity:1}
.carousel-item img{width:100%;height:100%;object-fit:cover}
.carousel-dots{position:absolute;bottom:12px;left:50%;transform:translateX(-50%);display:flex;gap:6px;z-index:2}
.carousel-dot{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.5);cursor:pointer;transition:background .2s}
.carousel-dot.active{background:#fff}
@media(max-width:768px){.carousel{height:140px}}

/* ==================== 广告位 ==================== */
.ad-slot{width:100%;border-radius:var(--radius-md);overflow:hidden;margin:16px 0}
.ad-slot img{width:100%;max-height:120px;object-fit:cover}

/* ==================== 工具类 ==================== */
.flex{display:flex}
.flex-center{display:flex;align-items:center}
.flex-between{display:flex;align-items:center;justify-content:space-between}
.flex-col{display:flex;flex-direction:column}
.gap-4{gap:4px}.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}
.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}
.mb-8{margin-bottom:8px}.mb-16{margin-bottom:16px}.mb-24{margin-bottom:24px}
.text-center{text-align:center}
.text-right{text-align:right}
.text-primary{color:var(--primary)}
.text-secondary{color:var(--text-2)}
.text-muted{color:var(--text-3)}
.text-sm{font-size:13px}.text-xs{font-size:12px}
.font-bold{font-weight:600}
.w-full{width:100%}
.cursor-pointer{cursor:pointer}
.hide{display:none!important}
.relative{position:relative}
.justify-center{justify-content:center}
.flex-wrap{flex-wrap:wrap}
.ellipsis{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}