/* ============================================================
   书海导航 - 业务组件样式
   ============================================================ */

/* ----------- 卡片 ----------- */
.card {
    background: #fff;
    border-radius: var(--rounded-md);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}
.card-header {
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}
.card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}
.card-body { padding: var(--space-6); }
.card-footer {
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
}

/* ----------- 统计卡片 ----------- */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-4);
}
.stat-card {
    background: #fff;
    border-radius: var(--rounded-md);
    padding: var(--space-5) var(--space-6);
    border: 1px solid var(--gray-200);
    position: relative;
    overflow: hidden;
    transition: all .3s;
}
.stat-card:hover {
    border-color: transparent;
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}
.stat-card::before {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 120px;
    height: 120px;
    background: var(--gradient-blue);
    border-radius: 50%;
    opacity: 0.05;
    transform: translate(40%, -40%);
}
.stat-card-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--rounded-sm);
    background: var(--primary-50);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-3);
}
.stat-card-label {
    font-size: 13px;
    color: var(--gray-500);
    margin-bottom: var(--space-1);
}
.stat-card-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.2;
}
.stat-card-trend {
    font-size: 12px;
    margin-top: var(--space-2);
    color: var(--success);
}
.stat-card-trend.down { color: var(--danger); }

/* ----------- Hero 区 ----------- */
.hero {
    position: relative;
    padding: var(--space-20) 0 var(--space-16);
    background: var(--gradient-bg);
    overflow: hidden;
}
.hero::before {
    content: "";
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}
.hero::after {
    content: "";
    position: absolute;
    bottom: -200px;
    left: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}
.hero-inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--space-6);
    position: relative;
    text-align: center;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 6px 14px;
    border-radius: var(--rounded-full);
    background: rgba(79, 70, 229, 0.1);
    color: var(--primary);
    font-size: 13px;
    font-weight: 500;
    margin-bottom: var(--space-5);
    border: 1px solid rgba(79, 70, 229, 0.2);
}
.hero-badge .dot {
    width: 6px;
    height: 6px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}
.hero h1 {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: var(--space-5);
    background: linear-gradient(135deg, #1F2937 0%, #4F46E5 50%, #06B6D4 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero p {
    font-size: 17px;
    color: var(--gray-600);
    max-width: 680px;
    margin: 0 auto var(--space-8);
    line-height: 1.7;
}
.hero-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
}
.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-12);
    margin-top: var(--space-12);
    flex-wrap: wrap;
}
.hero-stat {
    text-align: center;
}
.hero-stat-value {
    font-size: 32px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-stat-label {
    font-size: 13px;
    color: var(--gray-500);
    margin-top: var(--space-1);
}

/* ----------- 特性卡片 ----------- */
.features-section {
    padding: var(--space-20) 0;
}
.section-header {
    text-align: center;
    margin-bottom: var(--space-12);
}
.section-tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: var(--rounded-full);
    background: var(--primary-50);
    color: var(--primary);
    font-size: 12px;
    font-weight: 500;
    margin-bottom: var(--space-3);
}
.section-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-3);
}
.section-subtitle {
    font-size: 15px;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-6);
}
.feature-card {
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--rounded-md);
    padding: var(--space-8) var(--space-6);
    text-align: left;
    transition: all .3s;
    position: relative;
    overflow: hidden;
}
.feature-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-blue);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .3s;
}
.feature-card:hover {
    border-color: transparent;
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--rounded);
    background: var(--gradient-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-4);
    box-shadow: var(--shadow-md);
}
.feature-icon svg { width: 28px; height: 28px; }
.feature-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--space-2);
}
.feature-card p {
    font-size: 13px;
    color: var(--gray-600);
    line-height: 1.7;
}

/* ----------- 资源页 - 侧边栏 ----------- */
.resource-layout {
    max-width: var(--container);
    margin: 0 auto;
    padding: var(--space-8) var(--space-6);
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: var(--space-6);
}
.resource-sidebar {
    background: #fff;
    border-radius: var(--rounded-md);
    border: 1px solid var(--gray-200);
    padding: var(--space-4);
    height: fit-content;
    position: sticky;
    top: 88px;
}
.resource-sidebar h3 {
    font-size: 13px;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-3);
    padding: 0 var(--space-2);
}
.sidebar-menu { display: flex; flex-direction: column; gap: 2px; }
.sidebar-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: 10px var(--space-3);
    border-radius: var(--rounded-sm);
    color: var(--gray-700);
    font-size: 14px;
    transition: all .15s;
    cursor: pointer;
}
.sidebar-item:hover {
    background: var(--primary-50);
    color: var(--primary);
}
.sidebar-item.active {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: var(--shadow-md);
}
.sidebar-item .icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* ----------- 资源分类区块 ----------- */
.resource-main { display: flex; flex-direction: column; gap: var(--space-6); }
.category-section {
    background: #fff;
    border-radius: var(--rounded-md);
    border: 1px solid var(--gray-200);
    overflow: hidden;
}
.category-header {
    padding: var(--space-4) var(--space-6);
    background: linear-gradient(135deg, var(--primary-50) 0%, transparent 100%);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.category-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}
.category-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--rounded-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
}
.category-description {
    font-size: 12px;
    color: var(--gray-500);
    margin-top: var(--space-1);
}
.category-count {
    font-size: 13px;
    color: var(--gray-500);
}
.entries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
}
.entry-card {
    position: relative;
    padding: var(--space-4);
    border: 1px solid var(--gray-200);
    border-radius: var(--rounded-sm);
    background: #fff;
    transition: all .2s;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}
.entry-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}
.entry-card.recommended {
    border-color: var(--primary-light);
    background: linear-gradient(135deg, var(--primary-50) 0%, #fff 50%);
}
.entry-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}
.entry-name .badge-rec {
    font-size: 10px;
    padding: 1px 6px;
    background: var(--danger);
    color: #fff;
    border-radius: var(--rounded-sm);
    font-weight: 500;
}
.entry-name .badge-vip {
    font-size: 10px;
    padding: 1px 6px;
    background: var(--warning);
    color: #fff;
    border-radius: var(--rounded-sm);
    font-weight: 500;
}
.entry-description {
    font-size: 12px;
    color: var(--gray-500);
    line-height: 1.6;
    flex: 1;
}
.entry-actions {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-2);
}
.entry-actions .btn { flex: 1; }

/* ----------- 表格 ----------- */
.table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 13px;
}
.table thead th {
    background: var(--gray-50);
    color: var(--gray-600);
    font-weight: 600;
    text-align: left;
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--gray-200);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.table tbody td {
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--gray-100);
    color: var(--gray-700);
}
.table tbody tr:hover td {
    background: var(--gray-50);
}
.table tbody tr:last-child td {
    border-bottom: 0;
}
.table .actions {
    display: flex;
    gap: var(--space-2);
}

/* ----------- 徽章 ----------- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: var(--rounded-sm);
    font-size: 11px;
    font-weight: 500;
}
.badge-primary { background: var(--primary-50); color: var(--primary); }
.badge-success { background: #ECFDF5; color: #065F46; }
.badge-warning { background: #FFFBEB; color: #92400E; }
.badge-danger { background: #FEF2F2; color: #991B1B; }
.badge-info { background: #EFF6FF; color: #1E40AF; }
.badge-gray { background: var(--gray-100); color: var(--gray-700); }

/* ----------- 模态框 ----------- */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(17, 24, 39, 0.6);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 200;
    padding: var(--space-4);
}
.modal-backdrop.show { display: flex; }
.modal {
    background: #fff;
    border-radius: var(--rounded-md);
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow: auto;
    box-shadow: var(--shadow-2xl);
    animation: modal-in .2s ease-out;
}
@keyframes modal-in {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
.modal-header {
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.modal-title { font-size: 16px; font-weight: 600; }
.modal-close {
    width: 32px;
    height: 32px;
    border-radius: var(--rounded-sm);
    background: transparent;
    cursor: pointer;
    color: var(--gray-500);
    display: flex;
    align-items: center;
    justify-content: center;
}
.modal-close:hover { background: var(--gray-100); color: var(--gray-900); }
.modal-body { padding: var(--space-6); }
.modal-footer {
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--gray-200);
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
}

/* ----------- Toast ----------- */
.toast-container {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}
.toast {
    padding: var(--space-3) var(--space-5);
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--rounded);
    box-shadow: var(--shadow-lg);
    min-width: 280px;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    animation: toast-in .3s ease-out;
}
@keyframes toast-in {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}
.toast.success { border-left: 3px solid var(--success); }
.toast.danger  { border-left: 3px solid var(--danger); }
.toast.warning { border-left: 3px solid var(--warning); }
.toast.info    { border-left: 3px solid var(--info); }

/* ----------- 分页 ----------- */
.pagination {
    display: flex;
    gap: var(--space-1);
    align-items: center;
    justify-content: center;
    margin-top: var(--space-6);
}
.pagination a, .pagination span {
    padding: 6px 12px;
    border: 1px solid var(--gray-200);
    border-radius: var(--rounded-sm);
    font-size: 13px;
    color: var(--gray-700);
    transition: all .2s;
}
.pagination a:hover {
    background: var(--primary-50);
    border-color: var(--primary);
    color: var(--primary);
}
.pagination .active {
    background: var(--gradient-primary);
    color: #fff;
    border-color: transparent;
}
.pagination .disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ----------- Loading ----------- */
.loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin .8s linear infinite;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255,255,255,0.8);
    backdrop-filter: blur(4px);
    z-index: 250;
    display: none;
    align-items: center;
    justify-content: center;
}
.loading-overlay.show { display: flex; }
.loading-overlay .loading { width: 32px; height: 32px; border-width: 3px; }

/* ----------- 登录/注册页 ----------- */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-bg);
    padding: var(--space-6);
    position: relative;
    overflow: hidden;
}
.auth-page::before, .auth-page::after {
    content: "";
    position: absolute;
    border-radius: 50%;
}
.auth-page::before {
    top: -150px;
    right: -150px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.15) 0%, transparent 70%);
}
.auth-page::after {
    bottom: -200px;
    left: -150px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.15) 0%, transparent 70%);
}
.auth-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: var(--rounded-lg);
    box-shadow: var(--shadow-2xl);
    width: 100%;
    max-width: 440px;
    padding: var(--space-10) var(--space-8);
    position: relative;
    z-index: 1;
}
.auth-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: var(--space-8);
    text-align: center;
}
.auth-logo-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--rounded-md);
    background: var(--gradient-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-4);
    box-shadow: var(--shadow-glow);
}
.auth-logo-icon svg { width: 32px; height: 32px; }
.auth-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-1);
}
.auth-subtitle {
    font-size: 14px;
    color: var(--gray-500);
}
.auth-tabs {
    display: flex;
    background: var(--gray-100);
    border-radius: var(--rounded-sm);
    padding: 4px;
    margin-bottom: var(--space-6);
}
.auth-tab {
    flex: 1;
    text-align: center;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 13px;
    color: var(--gray-600);
    cursor: pointer;
    transition: all .2s;
}
.auth-tab.active {
    background: #fff;
    color: var(--primary);
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}
.auth-footer {
    text-align: center;
    margin-top: var(--space-6);
    font-size: 13px;
    color: var(--gray-500);
}
.auth-footer a {
    color: var(--primary);
    font-weight: 500;
}

/* ----------- 会员面板 ----------- */
.member-hero {
    background: var(--gradient-primary);
    color: #fff;
    padding: var(--space-10) 0;
    position: relative;
    overflow: hidden;
}
.member-hero::before {
    content: "";
    position: absolute;
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
}
.member-hero::after {
    content: "";
    position: absolute;
    bottom: -100px;
    left: 10%;
    width: 300px;
    height: 300px;
    background: rgba(255,255,255,0.05);
    border-radius: 50%;
}
.member-hero-inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
    flex-wrap: wrap;
    position: relative;
}
.member-info {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}
.member-avatar {
    width: 72px;
    height: 72px;
    border-radius: var(--rounded-md);
    background: rgba(255,255,255,0.2);
    border: 2px solid rgba(255,255,255,0.4);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 700;
    backdrop-filter: blur(8px);
}
.member-name {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: var(--space-1);
}
.member-meta {
    font-size: 13px;
    opacity: 0.85;
    display: flex;
    align-items: center;
    gap: var(--space-3);
}
.member-vip-tag {
    background: rgba(255,255,255,0.25);
    padding: 3px 12px;
    border-radius: var(--rounded-full);
    font-weight: 600;
}
.member-actions {
    display: flex;
    gap: var(--space-3);
}
.member-actions .btn {
    background: rgba(255,255,255,0.2);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.3);
}
.member-actions .btn:hover {
    background: rgba(255,255,255,0.3);
    color: #fff;
}

/* ----------- 价格表 ----------- */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-4);
    max-width: var(--container);
    margin: 0 auto;
}
.pricing-card {
    background: #fff;
    border: 2px solid var(--gray-200);
    border-radius: var(--rounded-md);
    padding: var(--space-6);
    text-align: center;
    transition: all .3s;
    position: relative;
}
.pricing-card.featured {
    border-color: var(--primary);
    transform: scale(1.05);
    box-shadow: var(--shadow-glow);
}
.pricing-card.featured::before {
    content: "推荐";
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: #fff;
    padding: 4px 12px;
    border-radius: var(--rounded-full);
    font-size: 11px;
    font-weight: 600;
}
.pricing-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--space-3);
}
.pricing-price {
    font-size: 36px;
    font-weight: 700;
    background: var(--gradient-blue);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
    margin-bottom: var(--space-1);
}
.pricing-price small { font-size: 14px; opacity: 0.7; -webkit-text-fill-color: var(--gray-500); }
.pricing-features {
    text-align: left;
    margin: var(--space-5) 0;
    font-size: 13px;
    color: var(--gray-600);
}
.pricing-features li {
    padding: var(--space-2) 0;
    border-bottom: 1px solid var(--gray-100);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}
.pricing-features li:last-child { border-bottom: 0; }
.pricing-features li::before {
    content: "✓";
    color: var(--success);
    font-weight: 700;
}

/* ----------- 响应式 ----------- */
@media (max-width: 1024px) {
    .resource-layout { grid-template-columns: 1fr; }
    .resource-sidebar { position: static; }
}
@media (max-width: 768px) {
    .hero h1 { font-size: 32px; }
    .hero-stats { gap: var(--space-6); }
    .hero-stat-value { font-size: 24px; }
    .section-title { font-size: 24px; }
    .entries-grid { grid-template-columns: 1fr; }
}