@charset "utf-8";

/* =====================================================
   666card.com 新设计系统 - 桌面端
   风格：浅色现代金融
   ===================================================== */

:root {
    /* 颜色 */
    --nd-primary: #2563EB;
    --nd-primary-dark: #1D4ED8;
    --nd-primary-light: #DBEAFE;
    --nd-accent: #0EA5E9;
    --nd-success: #10B981;
    --nd-warning: #F59E0B;
    --nd-danger: #EF4444;
    --nd-surface: #F8FAFC;
    --nd-surface-2: #F1F5F9;
    --nd-text: #1E293B;
    --nd-text-secondary: #64748B;
    --nd-text-muted: #94A3B8;
    --nd-border: #E2E8F0;
    --nd-border-light: #F1F5F9;
    --nd-white: #FFFFFF;
    --nd-black: #0F172A;

    /* 间距 */
    --nd-space-1: 4px;
    --nd-space-2: 8px;
    --nd-space-3: 12px;
    --nd-space-4: 16px;
    --nd-space-5: 24px;
    --nd-space-6: 32px;
    --nd-space-7: 48px;
    --nd-space-8: 64px;
    --nd-space-9: 96px;

    /* 圆角 */
    --nd-radius-sm: 4px;
    --nd-radius-md: 8px;
    --nd-radius-lg: 12px;
    --nd-radius-xl: 16px;
    --nd-radius-full: 9999px;

    /* 阴影 */
    --nd-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
    --nd-shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
    --nd-shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
    --nd-shadow-card: 0 2px 8px rgba(15, 23, 42, 0.06);
    --nd-shadow-panel: 0 20px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);

    /* 字体 */
    --nd-font-sans: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
    --nd-font-mono: "SF Mono", Monaco, Inconsolata, "Fira Code", Consolas, monospace;

    /* 布局 */
    --nd-container: 1200px;
    --nd-header-height: 72px;
}

/* 基础重置与覆盖 */
.nd-page {
    font-family: var(--nd-font-sans);
    color: var(--nd-text);
    background: var(--nd-surface);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.nd-page *,
.nd-page *::before,
.nd-page *::after {
    box-sizing: border-box;
}

.nd-page a {
    color: var(--nd-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.nd-page a:hover {
    color: var(--nd-primary-dark);
}

.nd-page img {
    max-width: 100%;
    height: auto;
}

/* 容器 */
.nd-container {
    width: 100%;
    max-width: var(--nd-container);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--nd-space-5);
    padding-right: var(--nd-space-5);
}

/* 按钮 */
.nd-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--nd-space-2);
    padding: var(--nd-space-3) var(--nd-space-5);
    font-size: 15px;
    font-weight: 500;
    line-height: 1.5;
    border: 1px solid transparent;
    border-radius: var(--nd-radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    font-family: inherit;
}

.nd-btn:disabled,
.nd-btn.nd-disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.nd-btn-primary {
    background: var(--nd-primary);
    color: var(--nd-white);
    box-shadow: var(--nd-shadow-sm);
}

.nd-btn-primary:hover:not(:disabled) {
    background: var(--nd-primary-dark);
    color: var(--nd-white);
    transform: translateY(-1px);
    box-shadow: var(--nd-shadow-md);
}

.nd-btn-secondary {
    background: var(--nd-white);
    color: var(--nd-primary);
    border-color: var(--nd-border);
}

.nd-btn-secondary:hover:not(:disabled) {
    border-color: var(--nd-primary);
    background: var(--nd-primary-light);
}

.nd-btn-ghost {
    background: transparent;
    color: var(--nd-text-secondary);
    border-color: var(--nd-border);
}

.nd-btn-ghost:hover:not(:disabled) {
    color: var(--nd-text);
    background: var(--nd-surface-2);
}

.nd-btn-success {
    background: var(--nd-success);
    color: var(--nd-white);
}

.nd-btn-success:hover:not(:disabled) {
    background: #059669;
    color: var(--nd-white);
}

.nd-btn-full {
    width: 100%;
}

.nd-btn-lg {
    padding: var(--nd-space-4) var(--nd-space-6);
    font-size: 16px;
    border-radius: var(--nd-radius-lg);
}

.nd-btn-sm {
    padding: var(--nd-space-2) var(--nd-space-3);
    font-size: 13px;
}

/* 卡片 */
.nd-card {
    background: var(--nd-white);
    border: 1px solid var(--nd-border);
    border-radius: var(--nd-radius-lg);
    box-shadow: var(--nd-shadow-card);
    overflow: hidden;
}

.nd-card-body {
    padding: var(--nd-space-5);
}

.nd-card-header {
    padding: var(--nd-space-4) var(--nd-space-5);
    border-bottom: 1px solid var(--nd-border-light);
    font-weight: 600;
}

/* 表单 */
.nd-form-group {
    margin-bottom: var(--nd-space-5);
}

.nd-form-label {
    display: block;
    margin-bottom: var(--nd-space-2);
    font-size: 14px;
    font-weight: 500;
    color: var(--nd-text);
}

.nd-form-hint {
    margin-top: var(--nd-space-1);
    font-size: 13px;
    color: var(--nd-text-muted);
}

.nd-input,
.nd-textarea,
.nd-select {
    width: 100%;
    padding: var(--nd-space-3) var(--nd-space-4);
    font-size: 15px;
    font-family: inherit;
    color: var(--nd-text);
    background: var(--nd-white);
    border: 1px solid var(--nd-border);
    border-radius: var(--nd-radius-md);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    outline: none;
}

.nd-input:focus,
.nd-textarea:focus,
.nd-select:focus {
    border-color: var(--nd-primary);
    box-shadow: 0 0 0 3px var(--nd-primary-light);
}

.nd-input::placeholder,
.nd-textarea::placeholder {
    color: var(--nd-text-muted);
}

.nd-input-error {
    border-color: var(--nd-danger);
}

.nd-input-error:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.nd-form-error {
    margin-top: var(--nd-space-1);
    font-size: 13px;
    color: var(--nd-danger);
}

/* 标签页 */
.nd-tabs {
    display: flex;
    gap: var(--nd-space-1);
    border-bottom: 1px solid var(--nd-border);
    margin-bottom: var(--nd-space-5);
}

.nd-tab {
    padding: var(--nd-space-3) var(--nd-space-4);
    font-size: 15px;
    font-weight: 500;
    color: var(--nd-text-secondary);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}

.nd-tab:hover {
    color: var(--nd-text);
}

.nd-tab.active {
    color: var(--nd-primary);
    border-bottom-color: var(--nd-primary);
}

/* 徽章 */
.nd-badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--nd-radius-full);
}

.nd-badge-success {
    background: #D1FAE5;
    color: #065F46;
}

.nd-badge-primary {
    background: var(--nd-primary-light);
    color: var(--nd-primary-dark);
}

.nd-badge-warning {
    background: #FEF3C7;
    color: #92400E;
}

/* 步骤条 */
.nd-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--nd-space-2);
    margin-bottom: var(--nd-space-6);
}

.nd-step {
    display: flex;
    align-items: center;
    gap: var(--nd-space-2);
    font-size: 14px;
    color: var(--nd-text-muted);
}

.nd-step-dot {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--nd-radius-full);
    background: var(--nd-surface-2);
    font-size: 12px;
    font-weight: 600;
}

.nd-step.active {
    color: var(--nd-primary);
    font-weight: 500;
}

.nd-step.active .nd-step-dot {
    background: var(--nd-primary);
    color: var(--nd-white);
}

.nd-step.completed .nd-step-dot {
    background: var(--nd-success);
    color: var(--nd-white);
}

.nd-step-line {
    width: 40px;
    height: 1px;
    background: var(--nd-border);
}

/* =====================================================
   首页 Hero + 卡类选择器
   ===================================================== */

.nd-hero {
    position: relative;
    padding: var(--nd-space-9) 0;
    background: linear-gradient(135deg, var(--nd-surface) 0%, #EFF6FF 100%);
    overflow: hidden;
}

.nd-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.nd-hero-inner {
    display: grid;
    grid-template-columns: 1fr 480px;
    gap: var(--nd-space-8);
    align-items: center;
}

.nd-hero-content {
    position: relative;
    z-index: 1;
}

.nd-hero-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--nd-space-2);
    padding: var(--nd-space-2) var(--nd-space-3);
    background: var(--nd-white);
    border: 1px solid var(--nd-border);
    border-radius: var(--nd-radius-full);
    font-size: 13px;
    color: var(--nd-text-secondary);
    margin-bottom: var(--nd-space-5);
    box-shadow: var(--nd-shadow-sm);
}

.nd-hero-tag .nd-dot {
    width: 8px;
    height: 8px;
    background: var(--nd-success);
    border-radius: var(--nd-radius-full);
    animation: nd-pulse 2s infinite;
}

@keyframes nd-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.nd-hero-title {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.15;
    color: var(--nd-black);
    margin-bottom: var(--nd-space-4);
    letter-spacing: -0.02em;
}

.nd-hero-title span {
    color: var(--nd-primary);
}

.nd-hero-subtitle {
    font-size: 18px;
    color: var(--nd-text-secondary);
    margin-bottom: var(--nd-space-6);
    max-width: 480px;
}

.nd-hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--nd-space-4);
    margin-bottom: var(--nd-space-7);
}

.nd-hero-feature {
    display: flex;
    align-items: center;
    gap: var(--nd-space-2);
    font-size: 15px;
    color: var(--nd-text);
    font-weight: 500;
}

.nd-hero-feature i {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--nd-success);
    color: var(--nd-white);
    border-radius: var(--nd-radius-full);
    font-size: 12px;
    font-style: normal;
}

.nd-hero-stats {
    display: flex;
    gap: var(--nd-space-7);
    padding-top: var(--nd-space-6);
    border-top: 1px solid var(--nd-border);
}

.nd-hero-stat {
    display: flex;
    flex-direction: column;
    gap: var(--nd-space-1);
}

.nd-hero-stat-value {
    font-size: 28px;
    font-weight: 800;
    color: var(--nd-black);
    line-height: 1;
}

.nd-hero-stat-label {
    font-size: 13px;
    color: var(--nd-text-secondary);
}

/* 卡类选择器面板 */
.nd-selector-panel {
    background: var(--nd-white);
    border: 1px solid var(--nd-border);
    border-radius: var(--nd-radius-xl);
    box-shadow: var(--nd-shadow-panel);
    overflow: hidden;
    position: relative;
    z-index: 1;
}

.nd-selector-header {
    padding: var(--nd-space-5) var(--nd-space-6) var(--nd-space-4);
    border-bottom: 1px solid var(--nd-border-light);
}

.nd-selector-header h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--nd-black);
    margin: 0;
}

.nd-selector-header p {
    font-size: 14px;
    color: var(--nd-text-secondary);
    margin: var(--nd-space-1) 0 0;
}

.nd-selector-body {
    padding: var(--nd-space-5) var(--nd-space-6);
}

.nd-selector-categories {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--nd-space-3);
    margin-bottom: var(--nd-space-5);
}

.nd-selector-cat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--nd-space-2);
    padding: var(--nd-space-3) var(--nd-space-2);
    background: var(--nd-surface);
    border: 1px solid var(--nd-border);
    border-radius: var(--nd-radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

.nd-selector-cat i {
    font-size: 24px;
    color: var(--nd-text-secondary);
    transition: color 0.2s ease;
}

.nd-selector-cat span {
    font-size: 13px;
    color: var(--nd-text);
    font-weight: 500;
}

.nd-selector-cat:hover {
    border-color: var(--nd-primary);
    background: var(--nd-primary-light);
}

.nd-selector-cat:hover i {
    color: var(--nd-primary);
}

.nd-selector-cat.active {
    border-color: var(--nd-primary);
    background: var(--nd-primary-light);
    box-shadow: 0 0 0 2px var(--nd-primary-light);
}

.nd-selector-cat.active i,
.nd-selector-cat.active span {
    color: var(--nd-primary);
}

.nd-selector-cards {
    min-height: 120px;
    max-height: 260px;
    overflow-y: auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--nd-space-3);
    margin-bottom: var(--nd-space-5);
}

.nd-selector-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--nd-space-3) var(--nd-space-4);
    background: var(--nd-surface);
    border: 1px solid var(--nd-border);
    border-radius: var(--nd-radius-md);
    transition: all 0.2s ease;
}

.nd-selector-card:hover {
    border-color: var(--nd-primary);
    background: var(--nd-white);
    box-shadow: var(--nd-shadow-md);
    transform: translateY(-1px);
}

.nd-selector-card-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--nd-text);
}

.nd-selector-card-rate {
    font-size: 13px;
    font-weight: 700;
    color: var(--nd-success);
}

.nd-selector-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--nd-space-7) 0;
    color: var(--nd-text-muted);
    font-size: 14px;
}

.nd-selector-footer {
    padding: var(--nd-space-4) var(--nd-space-6) var(--nd-space-5);
    border-top: 1px solid var(--nd-border-light);
    background: var(--nd-surface);
}

/* 首页其他区块 */
.nd-section {
    padding: var(--nd-space-8) 0;
}

.nd-section-title {
    text-align: center;
    margin-bottom: var(--nd-space-7);
}

.nd-section-title h2 {
    font-size: 32px;
    font-weight: 800;
    color: var(--nd-black);
    margin-bottom: var(--nd-space-3);
}

.nd-section-title p {
    font-size: 16px;
    color: var(--nd-text-secondary);
    max-width: 560px;
    margin: 0 auto;
}

.nd-steps-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--nd-space-4);
}

.nd-step-card {
    text-align: center;
    padding: var(--nd-space-5) var(--nd-space-3);
}

.nd-step-card-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--nd-space-4);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--nd-primary-light);
    color: var(--nd-primary);
    border-radius: var(--nd-radius-lg);
    font-size: 28px;
}

.nd-step-card h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: var(--nd-space-2);
}

.nd-step-card p {
    font-size: 13px;
    color: var(--nd-text-secondary);
    margin: 0;
}

.nd-advantages {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--nd-space-5);
}

.nd-advantage {
    padding: var(--nd-space-6);
    background: var(--nd-white);
    border: 1px solid var(--nd-border);
    border-radius: var(--nd-radius-lg);
    box-shadow: var(--nd-shadow-card);
    transition: all 0.2s ease;
}

.nd-advantage:hover {
    transform: translateY(-4px);
    box-shadow: var(--nd-shadow-lg);
}

.nd-advantage-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--nd-primary-light);
    color: var(--nd-primary);
    border-radius: var(--nd-radius-md);
    font-size: 24px;
    margin-bottom: var(--nd-space-4);
}

.nd-advantage h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: var(--nd-space-2);
}

.nd-advantage p {
    font-size: 14px;
    color: var(--nd-text-secondary);
    margin: 0;
}

/* =====================================================
   顶部导航
   ===================================================== */

.nd-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--nd-border);
}

.nd-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--nd-header-height);
}

.nd-header-logo {
    display: flex;
    align-items: center;
}

.nd-header-logo img {
    height: 40px;
    width: auto;
}

.nd-header-nav {
    display: flex;
    align-items: center;
    gap: var(--nd-space-1);
}

.nd-header-nav a {
    display: flex;
    align-items: center;
    gap: var(--nd-space-2);
    padding: var(--nd-space-2) var(--nd-space-4);
    font-size: 15px;
    font-weight: 500;
    color: var(--nd-text);
    border-radius: var(--nd-radius-md);
    transition: all 0.2s ease;
}

.nd-header-nav a:hover {
    background: var(--nd-surface);
    color: var(--nd-primary);
}

.nd-header-nav a.active {
    color: var(--nd-primary);
    background: var(--nd-primary-light);
}

.nd-header-actions {
    display: flex;
    align-items: center;
    gap: var(--nd-space-3);
}

/* =====================================================
   页脚
   ===================================================== */

.nd-footer {
    background: var(--nd-white);
    border-top: 1px solid var(--nd-border);
    padding: var(--nd-space-8) 0 var(--nd-space-5);
}

.nd-footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: var(--nd-space-7);
    margin-bottom: var(--nd-space-7);
}

.nd-footer-brand img {
    height: 36px;
    margin-bottom: var(--nd-space-3);
}

.nd-footer-brand p {
    font-size: 14px;
    color: var(--nd-text-secondary);
    line-height: 1.7;
}

.nd-footer-col h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--nd-black);
    margin-bottom: var(--nd-space-4);
}

.nd-footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nd-footer-col li {
    margin-bottom: var(--nd-space-2);
}

.nd-footer-col a {
    font-size: 14px;
    color: var(--nd-text-secondary);
}

.nd-footer-col a:hover {
    color: var(--nd-primary);
}

.nd-footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--nd-space-5);
    border-top: 1px solid var(--nd-border);
    font-size: 13px;
    color: var(--nd-text-muted);
}

/* =====================================================
   卖卡页
   ===================================================== */

.nd-card-page {
    padding: var(--nd-space-7) 0;
    background: var(--nd-surface);
    min-height: calc(100vh - var(--nd-header-height));
}

.nd-card-page-inner {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--nd-space-6);
    align-items: start;
}

.nd-card-sidebar {
    background: var(--nd-white);
    border: 1px solid var(--nd-border);
    border-radius: var(--nd-radius-lg);
    box-shadow: var(--nd-shadow-card);
    overflow: hidden;
}

.nd-card-sidebar-header {
    padding: var(--nd-space-4) var(--nd-space-5);
    border-bottom: 1px solid var(--nd-border-light);
    font-weight: 700;
}

.nd-card-category-list {
    list-style: none;
    padding: var(--nd-space-2);
    margin: 0;
}

.nd-card-category-item {
    display: flex;
    align-items: center;
    gap: var(--nd-space-3);
    padding: var(--nd-space-3) var(--nd-space-4);
    border-radius: var(--nd-radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 14px;
    color: var(--nd-text);
}

.nd-card-category-item:hover {
    background: var(--nd-surface);
}

.nd-card-category-item.active {
    background: var(--nd-primary-light);
    color: var(--nd-primary);
    font-weight: 600;
}

.nd-card-category-item i {
    font-size: 18px;
    width: 24px;
    text-align: center;
}

.nd-card-main {
    background: var(--nd-white);
    border: 1px solid var(--nd-border);
    border-radius: var(--nd-radius-lg);
    box-shadow: var(--nd-shadow-card);
    overflow: hidden;
}

.nd-card-main-header {
    padding: var(--nd-space-5);
    border-bottom: 1px solid var(--nd-border-light);
}

.nd-card-main-header h2 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: var(--nd-space-2);
}

.nd-card-types {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--nd-space-3);
    padding: var(--nd-space-5);
}

.nd-card-type {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--nd-space-4);
    background: var(--nd-surface);
    border: 1px solid var(--nd-border);
    border-radius: var(--nd-radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
}

.nd-card-type:hover,
.nd-card-type.active {
    border-color: var(--nd-primary);
    background: var(--nd-primary-light);
}

.nd-card-type-info h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: var(--nd-space-1);
}

.nd-card-type-info p {
    font-size: 13px;
    color: var(--nd-text-muted);
    margin: 0;
}

.nd-card-type-rate {
    font-size: 16px;
    font-weight: 700;
    color: var(--nd-success);
}

.nd-card-form {
    padding: var(--nd-space-5);
    border-top: 1px solid var(--nd-border-light);
}

.nd-card-form-tabs {
    display: flex;
    gap: var(--nd-space-2);
    margin-bottom: var(--nd-space-5);
}

.nd-card-form-tab {
    padding: var(--nd-space-2) var(--nd-space-4);
    font-size: 14px;
    font-weight: 500;
    color: var(--nd-text-secondary);
    background: var(--nd-surface);
    border: 1px solid var(--nd-border);
    border-radius: var(--nd-radius-full);
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}

.nd-card-form-tab:hover {
    border-color: var(--nd-primary);
    color: var(--nd-primary);
}

.nd-card-form-tab.active {
    background: var(--nd-primary);
    color: var(--nd-white);
    border-color: var(--nd-primary);
}

/* =====================================================
   登录注册页
   ===================================================== */

.nd-auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--nd-space-6);
    background: linear-gradient(135deg, var(--nd-surface) 0%, #EFF6FF 100%);
}

.nd-auth-card {
    width: 100%;
    max-width: 440px;
    background: var(--nd-white);
    border: 1px solid var(--nd-border);
    border-radius: var(--nd-radius-xl);
    box-shadow: var(--nd-shadow-panel);
    overflow: hidden;
}

.nd-auth-card-body {
    padding: var(--nd-space-7) var(--nd-space-6);
}

.nd-auth-logo {
    text-align: center;
    margin-bottom: var(--nd-space-6);
}

.nd-auth-logo img {
    height: 44px;
    width: auto;
}

.nd-auth-title {
    font-size: 24px;
    font-weight: 800;
    text-align: center;
    margin-bottom: var(--nd-space-5);
    color: var(--nd-black);
}

.nd-auth-tabs {
    display: flex;
    gap: var(--nd-space-1);
    margin-bottom: var(--nd-space-6);
    border-bottom: 1px solid var(--nd-border);
}

.nd-auth-tab {
    flex: 1;
    padding: var(--nd-space-3) 0;
    font-size: 15px;
    font-weight: 500;
    color: var(--nd-text-secondary);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}

.nd-auth-tab.active {
    color: var(--nd-primary);
    border-bottom-color: var(--nd-primary);
}

.nd-input-group {
    position: relative;
}

.nd-input-icon {
    position: absolute;
    left: var(--nd-space-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--nd-text-muted);
    font-size: 16px;
}

.nd-input-group .nd-input {
    padding-left: 42px;
}

.nd-auth-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--nd-space-5);
    font-size: 13px;
}

.nd-auth-options label {
    display: flex;
    align-items: center;
    gap: var(--nd-space-2);
    color: var(--nd-text-secondary);
    cursor: pointer;
}

.nd-auth-options input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--nd-primary);
}

.nd-auth-divider {
    display: flex;
    align-items: center;
    gap: var(--nd-space-3);
    margin: var(--nd-space-5) 0;
    color: var(--nd-text-muted);
    font-size: 13px;
}

.nd-auth-divider::before,
.nd-auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--nd-border);
}

.nd-auth-social {
    display: flex;
    justify-content: center;
    gap: var(--nd-space-4);
}

.nd-auth-social a {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--nd-surface);
    border: 1px solid var(--nd-border);
    border-radius: var(--nd-radius-full);
    transition: all 0.2s ease;
}

.nd-auth-social a:hover {
    border-color: var(--nd-primary);
    background: var(--nd-primary-light);
}

.nd-auth-footer {
    text-align: center;
    margin-top: var(--nd-space-5);
    font-size: 14px;
    color: var(--nd-text-secondary);
}

/* 注册页分栏 */
.nd-auth-split {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 0;
    max-width: 900px;
    width: 100%;
}

.nd-auth-split-left {
    padding: var(--nd-space-7) var(--nd-space-6);
}

.nd-auth-split-right {
    background: linear-gradient(135deg, var(--nd-primary) 0%, var(--nd-accent) 100%);
    color: var(--nd-white);
    padding: var(--nd-space-7) var(--nd-space-6);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.nd-auth-split-right h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: var(--nd-space-4);
}

.nd-auth-split-right ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nd-auth-split-right li {
    display: flex;
    align-items: center;
    gap: var(--nd-space-3);
    margin-bottom: var(--nd-space-3);
    font-size: 15px;
}

/* =====================================================
   悬浮客服按钮
   ===================================================== */

.nd-fab {
    position: fixed;
    right: var(--nd-space-5);
    bottom: var(--nd-space-5);
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--nd-primary);
    color: var(--nd-white);
    border-radius: var(--nd-radius-full);
    box-shadow: var(--nd-shadow-lg);
    cursor: pointer;
    transition: all 0.2s ease;
    z-index: 99;
}

.nd-fab:hover {
    transform: translateY(-2px) scale(1.05);
    background: var(--nd-primary-dark);
}

/* =====================================================
   公告条
   ===================================================== */

.nd-notice-bar {
    background: var(--nd-white);
    border-bottom: 1px solid var(--nd-border);
    padding: var(--nd-space-3) 0;
}

.nd-notice-bar-inner {
    display: flex;
    align-items: center;
    gap: var(--nd-space-4);
    max-width: var(--nd-container);
    margin: 0 auto;
    padding: 0 var(--nd-space-5);
}

.nd-notice-bar-icon {
    color: var(--nd-warning);
    font-size: 18px;
}

.nd-notice-bar-text {
    flex: 1;
    font-size: 14px;
    color: var(--nd-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nd-notice-bar-text a {
    color: var(--nd-text);
}

.nd-notice-bar-text a:hover {
    color: var(--nd-primary);
}

.nd-notice-bar-more {
    font-size: 13px;
    white-space: nowrap;
}

/* =====================================================
   响应式辅助
   ===================================================== */

@media (max-width: 1200px) {
    .nd-hero-inner {
        grid-template-columns: 1fr;
        gap: var(--nd-space-7);
    }

    .nd-hero-content {
        text-align: center;
    }

    .nd-hero-subtitle,
    .nd-hero-features,
    .nd-hero-stats {
        justify-content: center;
        margin-left: auto;
        margin-right: auto;
    }

    .nd-selector-panel {
        max-width: 560px;
        margin: 0 auto;
    }

    .nd-steps-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .nd-advantages {
        grid-template-columns: repeat(2, 1fr);
    }

    .nd-card-page-inner {
        grid-template-columns: 1fr;
    }

    .nd-card-sidebar {
        display: none;
    }
}

/* 隐藏旧版右侧悬浮条（若页面仍有） */
.right-bar {
    display: none !important;
}

/* 覆盖旧版 index-banner 的固定高度 */
.index-banner {
    height: auto !important;
    background: transparent !important;
}

/* =====================================================
   覆盖旧版卖卡页表单样式
   ===================================================== */

.nd-card-main .form-group {
    display: flex;
    align-items: flex-start;
    gap: var(--nd-space-4);
    margin-bottom: var(--nd-space-5);
}

.nd-card-main .col-xs-1 {
    flex-shrink: 0;
    width: 90px;
    padding-top: var(--nd-space-3);
}

.nd-card-main .col-xs-11 {
    flex: 1;
    min-width: 0;
}

.nd-card-main .col-xs-4 {
    flex: 0 0 33.333%;
    max-width: 300px;
}

.nd-card-main .control-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--nd-text);
}

.nd-card-main hr {
    border: none;
    border-top: 1px solid var(--nd-border-light);
    margin: var(--nd-space-4) 0;
}

/* 卡类选择按钮 */
.nd-card-main .btn-group-cardtype {
    display: flex;
    flex-wrap: wrap;
    gap: var(--nd-space-3);
    list-style: none;
    padding: 0;
    margin: 0;
}

.nd-card-main .btn-group-cardtype li {
    flex-shrink: 0;
}

.nd-card-main .btn-card {
    display: flex;
    align-items: center;
    gap: var(--nd-space-2);
    padding: var(--nd-space-3) var(--nd-space-4);
    background: var(--nd-surface);
    border: 1px solid var(--nd-border);
    border-radius: var(--nd-radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 14px;
    color: var(--nd-text);
}

.nd-card-main .btn-card:hover,
.nd-card-main .btn-group-cardtype li.active .btn-card {
    border-color: var(--nd-primary);
    background: var(--nd-primary-light);
    color: var(--nd-primary);
}

/* 卡种选择 */
.nd-card-main .btn-group-tall,
.nd-card-main .btn-group-value {
    display: flex;
    flex-wrap: wrap;
    gap: var(--nd-space-2);
    list-style: none;
    padding: 0;
    margin: 0;
}

.nd-card-main .btn-group-tall li,
.nd-card-main .btn-group-value li {
    flex-shrink: 0;
}

.nd-card-main .btn-group-tall .btn,
.nd-card-main .btn-group-value .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--nd-space-2) var(--nd-space-3);
    background: var(--nd-surface);
    border: 1px solid var(--nd-border);
    border-radius: var(--nd-radius-md);
    font-size: 13px;
    color: var(--nd-text);
    cursor: pointer;
    transition: all 0.2s ease;
}

.nd-card-main .btn-group-tall li.active .btn,
.nd-card-main .btn-group-value li.active .btn,
.nd-card-main .btn-group-tall .btn:hover,
.nd-card-main .btn-group-value .btn:hover {
    border-color: var(--nd-primary);
    background: var(--nd-primary-light);
    color: var(--nd-primary);
}

/* 提交方式 */
.nd-card-main .btn-group-figure {
    display: flex;
    gap: var(--nd-space-2);
    list-style: none;
    padding: 0;
    margin: 0;
}

.nd-card-main .btn-group-figure li {
    flex-shrink: 0;
}

.nd-card-main .btn-group-figure .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 100px;
    padding: var(--nd-space-2) var(--nd-space-4);
    background: var(--nd-surface);
    border: 1px solid var(--nd-border);
    border-radius: var(--nd-radius-full);
    font-size: 14px;
    color: var(--nd-text);
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

.nd-card-main .btn-group-figure li.active .btn,
.nd-card-main .btn-group-figure .btn:hover {
    background: var(--nd-primary);
    border-color: var(--nd-primary);
    color: var(--nd-white);
}

/* 文本域和输入框覆盖 */
.nd-card-main .form-control {
    width: 100%;
    padding: var(--nd-space-3) var(--nd-space-4);
    font-size: 14px;
    font-family: inherit;
    color: var(--nd-text);
    background: var(--nd-white);
    border: 1px solid var(--nd-border);
    border-radius: var(--nd-radius-md);
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.nd-card-main .form-control:focus {
    border-color: var(--nd-primary);
    box-shadow: 0 0 0 3px var(--nd-primary-light);
}

.nd-card-main textarea.form-control {
    min-height: 160px;
    resize: vertical;
    line-height: 1.6;
}

/* 提交按钮 */
.nd-card-main #sellbutton {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 200px;
    padding: var(--nd-space-4) var(--nd-space-6);
    font-size: 16px;
    font-weight: 600;
    color: var(--nd-white);
    background: var(--nd-primary);
    border: none;
    border-radius: var(--nd-radius-lg);
    cursor: pointer;
    transition: all 0.2s ease;
}

.nd-card-main #sellbutton:hover:not(:disabled) {
    background: var(--nd-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--nd-shadow-md);
}

.nd-card-main #sellbutton:disabled,
.nd-card-main #sellbutton.btn-disabled {
    background: var(--nd-text-muted);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* 复选框文本 */
.nd-card-main .checkbox-text {
    font-size: 13px;
    color: var(--nd-text-secondary);
    line-height: 1.6;
}

.nd-card-main .checkbox-text a {
    color: var(--nd-primary);
}

/* 帮助块 */
.nd-card-main .help-block {
    margin-top: var(--nd-space-3);
    font-size: 13px;
    color: var(--nd-text-secondary);
}

.nd-card-main .help-block .btn-sm {
    padding: var(--nd-space-2) var(--nd-space-3);
    background: var(--nd-surface);
    border: 1px solid var(--nd-border);
    border-radius: var(--nd-radius-md);
    font-size: 13px;
    color: var(--nd-text);
    cursor: pointer;
    transition: all 0.2s ease;
}

.nd-card-main .help-block .btn-sm:hover {
    border-color: var(--nd-primary);
    color: var(--nd-primary);
    background: var(--nd-primary-light);
}

/* 提示文字 */
.nd-card-main #cardnote {
    font-size: 13px;
    color: var(--nd-warning);
    line-height: 1.6;
    padding: var(--nd-space-3);
    background: #FEF3C7;
    border-radius: var(--nd-radius-md);
    margin-top: var(--nd-space-3);
}

/* 维护提示 */
.nd-card-main .recycle-closed {
    text-align: center;
    padding: var(--nd-space-8) var(--nd-space-5);
}

.nd-card-main .recycle-closed h3 {
    font-size: 18px;
    color: var(--nd-danger);
    margin-bottom: var(--nd-space-3);
}

.nd-card-main .recycle-closed p {
    color: var(--nd-text-secondary);
}