/* ========== 全局样式 ========== */
:root {
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --radius: 8px;
    --radius-lg: 12px;
}

[data-theme="dark"] {
    --primary-color: #60a5fa;
    --primary-hover: #3b82f6;
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .toast {
    backdrop-filter: blur(20px);
}

[data-theme="dark"] .toast.error {
    background: linear-gradient(135deg, #dc2626, #b91c1c);
}

[data-theme="dark"] .toast.success {
    background: linear-gradient(135deg, #059669, #047857);
}

[data-theme="dark"] .toast.info {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background 0.3s, color 0.3s;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========== 顶部导航 ========== */
.header {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.logo-icon {
    font-size: 32px;
}

.header-actions {
    display: flex;
    gap: 8px;
}

.btn-icon {
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 20px;
    transition: background 0.2s;
}

.btn-icon:hover {
    background: var(--bg-color);
}

/* ========== 主内容区 ========== */
.main {
    padding: 40px 0;
}

/* ========== Tab 导航 ========== */
.tab-nav {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    background: var(--card-bg);
    padding: 8px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.tab-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    background: transparent;
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}

.tab-btn:hover {
    background: var(--bg-color);
    color: var(--text-primary);
}

.tab-btn.active {
    background: var(--primary-color);
    color: white;
}

.tab-btn span {
    font-size: 20px;
}

/* ========== Tab 内容 ========== */
.tab-content {
    position: relative;
}

.tab-pane {
    display: none;
    animation: fadeIn 0.3s ease-in;
}

.tab-pane.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========== 邮箱地址区域 ========== */
.email-section {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-bottom: 32px;
    box-shadow: var(--shadow);
}

/* 邮箱地址显示区域 */
.email-display-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

.email-display {
    flex: 1;
    padding: 16px 20px;
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 18px;
    font-weight: 500;
    color: var(--text-primary);
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    user-select: all;
}

.email-display:hover {
    border-color: var(--primary-color);
    background: var(--card-bg);
}

.email-display:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.email-display::placeholder {
    color: var(--text-secondary);
    font-weight: 400;
}

.btn-copy-inline {
    width: 56px;
    height: 56px;
    border: 2px solid var(--border-color);
    background: var(--bg-color);
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 24px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-copy-inline:hover:not(:disabled) {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.btn-copy-inline:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.email-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

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

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

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

.btn-secondary {
    background: var(--bg-color);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

.email-info {
    margin-top: 16px;
    padding: 12px;
    background: var(--bg-color);
    border-radius: var(--radius);
    font-size: 14px;
    color: var(--text-secondary);
    display: none;
}

.email-info.show {
    display: block;
}

/* ========== 邮件列表区域 ========== */
.mail-section {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow);
    min-height: 400px;
}

.mail-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.mail-title {
    font-size: 24px;
    font-weight: 600;
}

.mail-count {
    color: var(--text-secondary);
    font-size: 14px;
}

/* 加载状态 */
.loading {
    text-align: center;
    padding: 60px 20px;
}

.spinner {
    width: 40px;
    height: 40px;
    margin: 0 auto 16px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 小型刷新指示器（在邮件数量旁边） */
.refreshing-indicator {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary-color);
    font-size: 13px;
    font-weight: 500;
    animation: pulse 1.5s ease-in-out infinite;
}

.refreshing-indicator .mini-spinner {
    width: 14px;
    height: 14px;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
}

.empty-icon {
    font-size: 64px;
    margin-bottom: 16px;
}

.empty-text {
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 8px;
}

.empty-hint {
    color: var(--text-secondary);
    font-size: 14px;
}

/* 邮件列表 */
.mail-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mail-item {
    padding: 20px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
}

.mail-item:hover {
    border-color: var(--primary-color);
    transform: translateX(4px);
    box-shadow: var(--shadow);
}

.mail-item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 8px;
}

.mail-from {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 16px;
}

.mail-time {
    color: var(--text-secondary);
    font-size: 13px;
    white-space: nowrap;
}

.mail-subject {
    font-size: 15px;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.mail-preview {
    font-size: 14px;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 验证码显示样式 */
.verification-code-display {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: linear-gradient(135deg, var(--primary-color), #60a5fa);
    border-radius: var(--radius);
    margin-top: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.verification-code-display:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.verification-code-display:active {
    transform: translateY(0);
}

.code-label {
    font-size: 14px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
}

.code-value {
    flex: 1;
    font-size: 24px;
    font-weight: 700;
    color: white;
    font-family: 'Courier New', monospace;
    letter-spacing: 2px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.code-copy-icon {
    font-size: 18px;
    opacity: 0.9;
    transition: transform 0.2s;
}

.verification-code-display:hover .code-copy-icon {
    transform: scale(1.2);
}

/* ========== 邮件详情弹窗 ========== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.show {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: 20px;
    font-weight: 600;
    flex: 1;
    padding-right: 20px;
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    font-size: 24px;
    cursor: pointer;
    border-radius: var(--radius);
    color: var(--text-secondary);
    transition: all 0.2s;
}

.modal-close:hover {
    background: var(--bg-color);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
}

.mail-meta {
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.mail-meta-item {
    margin-bottom: 8px;
    font-size: 14px;
}

.mail-meta-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.mail-meta-value {
    color: var(--text-primary);
}

.mail-content {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-primary);
}

.mail-content iframe {
    width: 100%;
    min-height: 400px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
}

.mail-content pre {
    background: var(--bg-color);
    padding: 16px;
    border-radius: var(--radius);
    overflow-x: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
}

/* ========== Toast 提示 ========== */
.toast {
    position: fixed;
    top: 80px;
    left: 50%;
    transform: translateX(-50%) translateY(-100px);
    background: var(--text-primary);
    color: var(--card-bg);
    padding: 16px 28px;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    font-size: 15px;
    font-weight: 500;
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 2000;
    pointer-events: none;
    display: flex;
    align-items: center;
    gap: 10px;
    max-width: 500px;
    backdrop-filter: blur(10px);
}

.toast::before {
    content: '';
    font-size: 20px;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
    animation: toastBounce 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes toastBounce {
    0% {
        transform: translateX(-50%) translateY(-100px) scale(0.8);
    }
    50% {
        transform: translateX(-50%) translateY(10px) scale(1.05);
    }
    100% {
        transform: translateX(-50%) translateY(0) scale(1);
    }
}

.toast.success {
    background: linear-gradient(135deg, #10b981, #059669);
    box-shadow: 0 8px 32px rgba(16, 185, 129, 0.3);
}

.toast.success::before {
    content: '✅';
}

.toast.error {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    box-shadow: 0 8px 32px rgba(239, 68, 68, 0.3);
}

.toast.error::before {
    content: '⚠️';
}

.toast.info {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.3);
}

.toast.info::before {
    content: 'ℹ️';
}

/* ========== 响应式设计 ========== */
@media (max-width: 768px) {
    .container {
        padding: 0 12px;
    }

    .main {
        padding: 20px 0;
    }

    /* Tab 导航移动端优化 */
    .tab-nav {
        padding: 6px;
        gap: 4px;
    }

    .tab-btn {
        flex-direction: column;
        padding: 10px 8px;
        font-size: 12px;
        gap: 4px;
        min-height: 60px;
    }

    .tab-btn span {
        font-size: 24px;
    }

    /* 邮箱区域 */
    .email-section {
        padding: 20px;
    }

    .email-input-wrapper {
        flex-direction: column;
        align-items: stretch;
    }

    .email-domain {
        text-align: right;
        margin-top: 4px;
    }

    .email-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    /* 邮件列表 */
    .mail-section {
        padding: 20px;
    }

    .mail-item-header {
        flex-direction: column;
        gap: 4px;
    }

    /* 弹窗 */
    .modal-content {
        max-height: 95vh;
    }

    .modal-header,
    .modal-body {
        padding: 16px;
    }

    /* 查询区域 */
    .search-section {
        padding: 20px;
    }

    .search-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .search-header-actions {
        width: 100%;
        justify-content: space-between;
    }
}

/* ========== 数据库查询区域 ========== */
.search-section {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow);
}

.search-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-input {
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    background: var(--bg-color);
    color: var(--text-primary);
    font-size: 15px;
    transition: border-color 0.2s;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-hint {
    font-size: 13px;
    color: var(--text-secondary);
}

.search-results {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.search-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.search-header h4 {
    font-size: 18px;
    font-weight: 600;
}

.search-header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.search-count {
    color: var(--text-secondary);
    font-size: 14px;
}

.btn-clear {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    border-radius: var(--radius);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-primary);
}

.btn-clear:hover {
    background: var(--danger-color);
    border-color: var(--danger-color);
    color: white;
}

.search-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: 500px;
    overflow-y: auto;
}

.search-item {
    padding: 16px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
}

.search-item:hover {
    border-color: var(--primary-color);
    transform: translateX(4px);
}

.search-item-id {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.search-item-from {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 6px;
    word-break: break-all;
}

.search-item-subject {
    font-size: 15px;
    font-weight: 500;
    margin-bottom: 6px;
}

.search-item-preview {
    font-size: 14px;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.search-item-time {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 8px;
}


/* ========== 卡密提取区域 ========== */
.cardkey-section {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow);
}

.cardkey-header {
    text-align: center;
    margin-bottom: 32px;
}

.cardkey-header h2 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 8px;
}

.cardkey-desc {
    color: var(--text-secondary);
    font-size: 15px;
}

.cardkey-form {
    max-width: 600px;
    margin: 0 auto 32px;
}

.captcha-wrapper {
    display: flex;
    gap: 12px;
    align-items: center;
}

.captcha-wrapper .form-input {
    flex: 1;
}

.captcha-image {
    width: 120px;
    height: 48px;
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 600;
    letter-spacing: 4px;
    color: var(--text-primary);
    user-select: none;
}

.btn-large {
    width: 100%;
    padding: 16px 24px;
    font-size: 18px;
    margin-top: 8px;
}

/* 提取结果 */
.cardkey-result {
    max-width: 700px;
    margin: 0 auto 32px;
    padding: 24px;
    background: var(--bg-color);
    border-radius: var(--radius-lg);
    border: 2px solid var(--success-color);
}

.result-success {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--success-color);
    border-radius: var(--radius);
    margin-bottom: 24px;
}

.success-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.result-success h3 {
    font-size: 16px;
    font-weight: 600;
    color: white;
    margin: 0;
}

.result-item {
    margin-bottom: 24px;
}

.result-item label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.result-value-wrapper {
    display: flex;
    gap: 8px;
}

.result-value {
    flex: 1;
    padding: 14px 16px;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    font-family: 'Courier New', monospace;
}

.btn-copy-result {
    padding: 14px 20px;
    border: 2px solid var(--border-color);
    background: var(--card-bg);
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    transition: all 0.2s;
    white-space: nowrap;
}

.btn-copy-result:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    transform: translateY(-1px);
}

.result-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.result-actions .btn {
    flex: 1;
}

.result-hint {
    margin-top: 24px;
    padding: 16px;
    background: var(--card-bg);
    border-radius: var(--radius);
    border-left: 4px solid var(--primary-color);
}

.result-hint p {
    font-weight: 600;
    margin-bottom: 8px;
}

.result-hint ul {
    margin: 0;
    padding-left: 20px;
}

.result-hint li {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.8;
}

/* 使用说明 */
.cardkey-usage {
    max-width: 700px;
    margin: 0 auto;
    padding: 24px;
    background: var(--bg-color);
    border-radius: var(--radius-lg);
}

.cardkey-usage h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
}

.cardkey-usage ol {
    margin: 0;
    padding-left: 24px;
}

.cardkey-usage li {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 2;
    margin-bottom: 8px;
}

@media (max-width: 768px) {
    .cardkey-section {
        padding: 20px;
    }
    
    .captcha-wrapper {
        flex-direction: column;
        align-items: stretch;
    }
    
    .captcha-image {
        width: 100%;
    }
    
    .result-actions {
        flex-direction: column;
    }

    .result-value-wrapper {
        flex-direction: column;
    }

    .btn-copy-result {
        width: 100%;
    }
}

/* ========== 卡密验证界面样式 ========== */
.cardkey-verify-section {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 500px;
    padding: 40px 20px;
}

.verify-card {
    max-width: 500px;
    width: 100%;
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    box-shadow: var(--shadow-lg);
    text-align: center;
    border: 2px solid var(--border-color);
}

.verify-icon {
    font-size: 64px;
    margin-bottom: 24px;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.verify-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.verify-desc {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
}

.verify-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 32px;
}

.verify-form .form-input {
    text-align: center;
    font-size: 18px;
    font-weight: 500;
    letter-spacing: 2px;
    padding: 16px 20px;
}

.verify-hint {
    background: var(--bg-color);
    padding: 20px;
    border-radius: var(--radius);
    border-left: 4px solid var(--primary-color);
    text-align: left;
}

.verify-hint p {
    font-weight: 600;
    margin-bottom: 12px;
    font-size: 14px;
    color: var(--text-primary);
}

.verify-hint ul {
    margin: 0;
    padding-left: 20px;
}

.verify-hint li {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 6px;
}

@media (max-width: 768px) {
    .verify-card {
        padding: 32px 24px;
    }
    
    .verify-icon {
        font-size: 48px;
    }
    
    .verify-title {
        font-size: 24px;
    }
}