*{box-sizing:border-box;margin:0;padding:0}body{color:#333;-webkit-font-smoothing:antialiased;background-color:#f5f7fa;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,PingFang SC,Microsoft YaHei,sans-serif;font-size:14px}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit;font-size:inherit;background:0 0;border:none}input,select,textarea{font-family:inherit;font-size:inherit;outline:none}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:#f1f1f1}::-webkit-scrollbar-thumb{background:#c1c1c1;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#a8a8a8}:root{--primary:#3b82f6;--primary-dark:#2563eb;--primary-light:#dbeafe;--success:#16a34a;--danger:#dc2626;--warning:#f59e0b;--text:#1f2937;--text-secondary:#4b5563;--text-muted:#9ca3af;--border:#e5e7eb;--bg:#f5f7fa}.login-page{background:linear-gradient(135deg,#eff6ff 0%,#dbeafe 50%,#e0e7ff 100%);justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex;position:relative}.login-bg{pointer-events:none;background:radial-gradient(circle at 20% 20%,#3b82f61f 0%,#0000 45%),radial-gradient(circle at 80% 30%,#6366f11a 0%,#0000 45%),radial-gradient(circle at 50% 90%,#0ea5e91a 0%,#0000 45%);position:absolute;inset:0}.login-container{z-index:1;width:100%;max-width:420px;position:relative}.login-card{background:#fff;border-radius:16px;padding:40px 36px 32px;box-shadow:0 20px 50px #2563eb26}.login-header{text-align:center;margin-bottom:28px}.login-logo{background:linear-gradient(135deg,#3b82f6,#6366f1);border-radius:18px;justify-content:center;align-items:center;width:64px;height:64px;margin:0 auto 12px;font-size:30px;display:flex;box-shadow:0 8px 20px #3b82f659}.login-header h1{color:var(--text);margin-bottom:4px;font-size:22px;font-weight:700}.login-subtitle{color:var(--text-muted);letter-spacing:.5px;font-size:13px}.login-form .ant-form-item{margin-bottom:20px}.login-form-submit{margin-top:28px}.login-form-submit .ant-btn{border-radius:10px;height:44px;font-size:16px}.login-footer{text-align:center;color:var(--text-secondary);margin-top:20px;font-size:14px}.login-icp{text-align:center;margin-top:10px}.icp-link{color:var(--text-muted);font-size:13px;text-decoration:none}.icp-link:hover{color:var(--primary);text-decoration:underline}.link-btn{color:var(--primary);cursor:pointer;padding:0 4px;font-weight:600}.link-btn:hover{color:var(--primary-dark)}.student-app{background:var(--bg);min-height:100vh}.student-header{z-index:100;background:#fff;align-items:center;height:64px;padding:0 24px;display:flex;position:sticky;top:0;box-shadow:0 1px 4px #00152914}.header-inner{align-items:center;gap:32px;width:100%;max-width:1200px;margin:0 auto;display:flex}.header-logo{cursor:pointer;flex-shrink:0;align-items:center;gap:8px;display:flex}.logo-icon{font-size:26px}.logo-text{color:var(--text);white-space:nowrap;font-size:17px;font-weight:700}.header-nav.ant-menu{background:0 0;border-bottom:none;flex:1;min-width:240px}.header-nav .ant-menu-item{font-size:15px}.header-user{flex-shrink:0;align-items:center;display:flex}.user-greeting{align-items:center;display:inline-flex}.user-name{color:var(--text);font-weight:600}.user-sno{margin-inline-start:0!important}.student-main{width:100%;max-width:1200px;margin:0 auto;padding:24px 16px 48px}.student-footer{text-align:center;color:var(--text-muted);background:#fff;padding:16px}.search-bar{margin-bottom:20px;box-shadow:0 2px 8px #0015290a}.books-count{margin-left:8px}.book-grid .ant-col{display:flex}.book-card{border:1px solid var(--border);border-radius:12px;width:100%;transition:transform .2s,box-shadow .2s;overflow:hidden;box-shadow:0 2px 8px #0015290a}.book-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #0015291f}.book-cover{background:#f3f4f6;width:100%;height:200px;overflow:hidden}.book-cover img{object-fit:cover;width:100%;height:100%;display:block}.book-cover-placeholder{background:linear-gradient(135deg,#eef2ff,#e0f2fe);justify-content:center;align-items:center;width:100%;height:200px;font-size:56px;display:flex}.book-cover-placeholder.big{border-radius:12px;width:160px;height:220px;font-size:64px}.book-name{color:var(--text);text-overflow:ellipsis;white-space:nowrap;font-size:15px;font-weight:600;overflow:hidden}.book-info{margin-top:4px}.book-author{text-overflow:ellipsis;white-space:nowrap;font-size:13px;display:block;overflow:hidden}.book-stock{color:var(--text-secondary);margin-top:6px;font-size:13px}.stock-num{font-weight:600}.stock-num.in{color:var(--success)}.stock-num.out{color:var(--danger)}.book-detail{gap:24px;display:flex}.detail-cover img{object-fit:cover;border-radius:12px;width:160px;height:220px;box-shadow:0 4px 12px #0000001f}.detail-info{flex:1}.detail-info h2{color:var(--text);margin-bottom:16px;font-size:20px}.detail-row{color:var(--text-secondary);align-items:center;gap:8px;margin-bottom:10px;font-size:14px;display:flex}.detail-row .label{color:var(--text-muted);min-width:52px}.in-stock{color:var(--success);font-weight:600}.out-of-stock{color:var(--danger);font-weight:600}.detail-action{text-align:center;margin-top:20px}.detail-action .ant-btn{border-radius:10px;height:44px}.borrow-tip{color:var(--text-muted);margin-top:8px;font-size:12px}.loading-center{justify-content:center;align-items:center;padding:80px 0;display:flex}.empty-state{padding:60px 0}.pagination{justify-content:center;margin-top:24px;display:flex}.stats-row{margin-bottom:16px}.stats-row .ant-card{border-radius:12px;box-shadow:0 2px 8px #0015290a}.filter-bar{border-radius:12px;margin-bottom:16px;box-shadow:0 2px 8px #0015290a}.borrow-list-card{border-radius:12px;box-shadow:0 2px 8px #0015290a}.borrow-card{padding:12px 0}.borrow-card.overdue{background:#fffbf0;border-radius:8px;padding-left:12px;padding-right:12px}.borrow-cover{object-fit:cover;border-radius:6px;width:56px;height:76px;box-shadow:0 2px 6px #0000001a}.cover-placeholder{background:linear-gradient(135deg,#eef2ff,#e0f2fe);border-radius:6px;justify-content:center;align-items:center;width:56px;height:76px;font-size:26px;display:flex}.borrow-meta{color:var(--text-secondary);font-size:13px;line-height:1.8}.overdue-date{color:var(--danger);font-weight:600}.login-divider{color:var(--text-secondary);margin:20px 0 16px;font-size:13px}.wx-login-btn{color:#fff;background:#07c160;border-color:#07c160;border-radius:10px;height:44px;font-size:16px}.wx-login-btn:hover{color:#fff!important;background:#06ad56!important;border-color:#06ad56!important}.wx-callback-page{justify-content:center;align-items:center;min-height:100vh;display:flex}@media (width<=768px){.student-header{height:56px;padding:0 10px}.header-inner{gap:6px}.logo-icon{font-size:22px}.logo-text{font-size:14px}.header-nav.ant-menu{min-width:0}.header-nav .ant-menu-item{font-size:13px;padding:0 10px!important}.header-user .ant-btn{height:32px;padding:0 10px;font-size:13px}.user-greeting .user-sno{display:none!important}.user-greeting .user-name{text-overflow:ellipsis;white-space:nowrap;max-width:80px;font-size:13px;overflow:hidden}.student-main{padding:14px 12px 28px}.search-bar .ant-input-affix-wrapper,.search-bar .ant-input{width:100%!important}.search-bar .ant-space-item{width:100%}.search-bar .ant-space-item:nth-child(3),.search-bar .ant-space-item:nth-child(4){width:48%}.search-bar .ant-btn{width:100%}.book-cover{height:120px}.book-cover-placeholder{height:120px;font-size:44px}.book-name{font-size:13px}.book-stock{font-size:12px}.book-detail{flex-direction:column;align-items:center;gap:12px}.detail-cover img{width:140px;height:192px}.book-cover-placeholder.big{width:140px;height:192px;font-size:52px}.detail-info{width:100%}.detail-info h2{text-align:center;margin-bottom:10px;font-size:17px}.detail-row{justify-content:center;font-size:13px}.ant-pagination-options-quick-jumper{display:none!important}.ant-pagination{flex-wrap:wrap;justify-content:center;row-gap:8px}.login-page{padding:12px}.login-container{max-width:100%}.login-card{border-radius:14px;padding:26px 18px 22px}.login-header h1{font-size:19px}.login-logo{border-radius:14px;width:54px;height:54px;font-size:26px}.stats-row .ant-statistic-title{font-size:12px}.stats-row .ant-statistic-content{font-size:22px!important}.filter-bar .ant-segmented{max-width:100%;overflow-x:auto}.filter-bar .ant-segmented-group{flex-wrap:nowrap}.borrow-meta{font-size:12px}.borrow-card .ant-list-item-action{margin-top:8px;margin-left:0}.borrow-card .ant-list-item-action li{padding:0}.icp-link{font-size:12px}}
