/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #1a0a0a 0%, #2d0f0f 50%, #1f0a0a 100%);
    color: #ffffff;
    min-height: 100vh;
    overflow-x: hidden;
}

.container {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    padding-top: 2rem;
}

/* 背景动画 */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.3;
    animation: float 6s ease-in-out infinite;
}

.orb-1 {
    width: 300px;
    height: 300px;
    background: linear-gradient(45deg, #dc2626, #991b1b);
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 250px;
    height: 250px;
    background: linear-gradient(45deg, #ef4444, #dc2626);
    top: 60%;
    right: 10%;
    animation-delay: 2s;
}

.orb-3 {
    width: 200px;
    height: 200px;
    background: linear-gradient(45deg, #f87171, #ef4444);
    bottom: 20%;
    left: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    height: 100%;
}

.nav-logo img {
    width: 80px;
    height: 80px;
    transition: transform 0.3s ease;
}

.nav-logo img:hover {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link:hover,
.nav-link.active {
    color: #ffffff;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #dc2626, #ef4444);
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* 移动端菜单按钮 */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 25px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background: #ffffff;
    transition: all 0.3s ease;
    border-radius: 2px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: scale(0);
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

/* 表单容器 */
.form-container {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: 3rem;
    width: 100%;
    max-width: 600px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    position: relative;
    overflow: hidden;
}

.form-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
}

/* 表单头部 */
.form-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.logo-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
}

.logo-icon {
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.title {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #ffffff, #e2e8f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.subtitle {
    font-size: 1.4rem;
    background: linear-gradient(135deg, #ffffff 0%, #f3f4f6 50%, #e5e7eb 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-top: 0.2rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-shadow: 0 0 30px rgba(255, 255, 255, 0.3);
    position: relative;
    animation: subtitleGlow 3s ease-in-out infinite alternate;
    position: relative;
    overflow: hidden;
}

.subtitle::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: subtitleShine 4s ease-in-out infinite;
}

@keyframes subtitleShine {
    0% { left: -100%; }
    50% { left: 100%; }
    100% { left: 100%; }
}

@keyframes subtitleGlow {
    0% {
        background: linear-gradient(135deg, #ffffff 0%, #f3f4f6 50%, #e5e7eb 100%);
        background-clip: text;
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }
    100% {
        background: linear-gradient(135deg, #fbbf24 0%, #ffffff 50%, #60a5fa 100%);
        background-clip: text;
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }
}

/* 表单样式 */
.form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
}

.required {
    color: #ef4444;
    font-weight: 600;
}

.optional {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

.input-wrapper {
    position: relative;
}

.form-input, .form-textarea {
    width: 100%;
    padding: 1rem 1.25rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: #ffffff;
    font-size: 1rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.form-input:focus, .form-textarea:focus {
    outline: none;
    border-color: #dc2626;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
    background: rgba(255, 255, 255, 0.08);
}

.form-input::placeholder, .form-textarea::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

/* 单选按钮样式 */
.radio-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.radio-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.radio-option:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
}

.radio-option input[type="radio"] {
    display: none;
}

.radio-custom {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    position: relative;
    transition: all 0.3s ease;
}

.radio-option input[type="radio"]:checked + .radio-custom {
    border-color: #dc2626;
    background: #dc2626;
}

.radio-option input[type="radio"]:checked + .radio-custom::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background: #ffffff;
    border-radius: 50%;
}

.radio-text {
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
}

/* 复选框样式 */
.checkbox-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.checkbox-option {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.checkbox-option:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(220, 38, 38, 0.2);
}

.checkbox-option input[type="checkbox"] {
    display: none;
}

.checkbox-custom {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    position: relative;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.05);
}

.checkbox-option input[type="checkbox"]:checked + .checkbox-custom {
    background: linear-gradient(135deg, #dc2626, #991b1b);
    border-color: #dc2626;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.2);
}

.checkbox-option input[type="checkbox"]:checked + .checkbox-custom::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

.checkbox-text {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.9);
    margin-left: 0.75rem;
    font-weight: 400;
}

/* 提交按钮 */
.submit-btn {
    position: relative;
    width: 100%;
    padding: 1.25rem;
    background: linear-gradient(135deg, #dc2626, #991b1b);
    border: none;
    border-radius: 12px;
    color: #ffffff;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    overflow: hidden;
    margin-top: 1rem;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(220, 38, 38, 0.3);
}

.submit-btn:active {
    transform: translateY(0);
}

.btn-loader {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid #ffffff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 成功页面样式 */
.success-container {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: 600px;
}

.success-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: 3rem;
    text-align: center;
    width: 100%;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.success-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
}

.success-icon {
    margin-bottom: 2rem;
    transition: transform 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
}

.success-icon img {
    width: 100px;
    height: 100px;
    object-fit: contain;
}

.success-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #ffffff, #e2e8f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.success-message {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2.5rem;
}

.success-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.website-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    background: linear-gradient(135deg, #dc2626, #991b1b);
    color: #ffffff;
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
    animation: buttonGlow 2s ease-in-out infinite alternate;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.website-link::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, #dc2626, #fbbf24, #60a5fa, #dc2626);
    border-radius: 14px;
    z-index: -1;
    animation: borderRotate 3s linear infinite;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.website-link:hover::after {
    opacity: 1;
}

.website-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.website-link:hover::before {
    left: 100%;
}

.website-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(220, 38, 38, 0.3);
    animation: buttonPulse 0.6s ease-in-out;
}

.website-link .link-icon {
    animation: iconFloat 2s ease-in-out infinite;
}

.website-link .link-arrow {
    animation: arrowSlide 2s ease-in-out infinite;
}

@keyframes buttonGlow {
    0% {
        box-shadow: 0 0 20px rgba(220, 38, 38, 0.3);
    }
    100% {
        box-shadow: 0 0 30px rgba(220, 38, 38, 0.5);
    }
}

@keyframes buttonPulse {
    0% { transform: translateY(-2px) scale(1); }
    50% { transform: translateY(-2px) scale(1.05); }
    100% { transform: translateY(-2px) scale(1); }
}

@keyframes iconFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-2px); }
}

@keyframes arrowSlide {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(3px); }
}

@keyframes borderRotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 管理页面样式 */
.admin-container {
    width: 100%;
    max-width: 1200px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: 2rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.admin-title h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.admin-title p {
    color: rgba(255, 255, 255, 0.7);
}

.admin-stats {
    display: flex;
    gap: 1rem;
}

.stat-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #dc2626;
}

.stat-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

.data-table-container {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 16px;
    padding: 1.5rem;
}

.table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.table-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
}

.refresh-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: #ffffff;
    cursor: pointer;
    transition: all 0.3s ease;
}

.refresh-btn:hover {
    background: rgba(255, 255, 255, 0.15);
}

.table-wrapper {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.data-table th {
    background: rgba(255, 255, 255, 0.05);
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.data-table td {
    padding: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    color: rgba(255, 255, 255, 0.8);
}

.data-table tr:hover {
    background: rgba(255, 255, 255, 0.03);
}

.delete-btn {
    padding: 0.5rem 1rem;
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 6px;
    color: #ef4444;
    cursor: pointer;
    transition: all 0.3s ease;
}

.delete-btn:hover {
    background: rgba(239, 68, 68, 0.3);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-container {
        padding: 0.25rem 1rem;
        position: relative;
    }
    
    .nav-menu {
        display: none;
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: rgba(0, 0, 0, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        z-index: 999;
        min-height: calc(100vh - 60px);
        animation: slideDown 0.3s ease;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-link {
        font-size: 1.1rem;
        padding: 0.5rem 0;
        text-align: center;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-logo img {
        width: 120px;
        height: 36px;
        margin: 15.2% 0;
    }
    
    .container {
        padding: 1rem;
        min-height: 100vh;
        align-items: flex-start;
        padding-top: 2rem;
    }
    
    .form-container {
        padding: 1.5rem;
        margin: 0;
        border-radius: 16px;
        max-width: 100%;
    }
    
    .title {
        font-size: 1.8rem;
    }
    
    .subtitle {
        font-size: 1.2rem;
        letter-spacing: 0.5px;
    }
    
    .form {
        gap: 1.25rem;
    }
    
    .form-group {
        gap: 0.75rem;
    }
    
    .form-input, .form-textarea {
        padding: 0.875rem 1rem;
        font-size: 16px; /* 防止iOS缩放 */
    }
    
    .radio-group {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .radio-option {
        padding: 0.875rem;
    }
    
    .checkbox-group {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .checkbox-option {
        padding: 0.875rem;
    }
    
    .submit-btn {
        padding: 1rem;
        font-size: 1rem;
    }
    
    /* 成功页面移动端优化 */
    .success-container {
        padding: 1rem;
        max-width: 100%;
    }
    
    .success-card {
        padding: 2rem 1.5rem;
        border-radius: 16px;
        width: 100%;
    }
    
    .success-title {
        font-size: 1.5rem;
    }
    
    .success-message {
        font-size: 1rem;
    }
    
    .success-actions {
        gap: 0.75rem;
    }
    
    .website-link {
        padding: 0.875rem 1.5rem;
        font-size: 0.9rem;
        max-width: 100%;
    }
    
    /* 管理页面移动端优化 */
    .admin-container {
        padding: 1rem;
        margin: 1rem;
        border-radius: 16px;
    }
    
    .admin-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .admin-title h1 {
        font-size: 1.5rem;
    }
    
    .admin-stats {
        width: 100%;
        justify-content: space-between;
        gap: 0.5rem;
    }
    
    .stat-card {
        padding: 0.75rem 1rem;
        flex: 1;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .stat-label {
        font-size: 0.8rem;
    }
    
    .data-table-container {
        padding: 1rem;
        border-radius: 12px;
    }
    
    .table-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .table-header h2 {
        font-size: 1.25rem;
    }
    
    .admin-actions {
        width: 100%;
        justify-content: space-between;
    }
    
    .refresh-btn, .logout-btn {
        padding: 0.625rem 1rem;
        font-size: 0.875rem;
    }
    
    .table-wrapper {
        border-radius: 8px;
        overflow: hidden;
    }
    
    .data-table {
        font-size: 0.75rem;
        min-width: 600px; /* 确保表格内容完整显示 */
    }
    
    .data-table th,
    .data-table td {
        padding: 0.5rem 0.375rem;
        white-space: nowrap;
    }
    
    /* 表格列宽优化 */
    .data-table th:nth-child(1), /* ID */
    .data-table td:nth-child(1) {
        width: 40px;
        min-width: 40px;
    }
    
    .data-table th:nth-child(2), /* 姓名 */
    .data-table td:nth-child(2) {
        width: 80px;
        min-width: 80px;
    }
    
    .data-table th:nth-child(3), /* 手机 */
    .data-table td:nth-child(3) {
        width: 100px;
        min-width: 100px;
    }
    
    .data-table th:nth-child(4), /* 公司 */
    .data-table td:nth-child(4) {
        width: 120px;
        min-width: 120px;
    }
    
    .data-table th:nth-child(5), /* 员工规模 */
    .data-table td:nth-child(5) {
        width: 100px;
        min-width: 100px;
    }
    
    .data-table th:nth-child(6), /* 需求描述 */
    .data-table td:nth-child(6) {
        width: 150px;
        min-width: 150px;
        max-width: 150px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    
    .data-table th:nth-child(7), /* 提交时间 */
    .data-table td:nth-child(7) {
        width: 120px;
        min-width: 120px;
    }
    
    .data-table th:nth-child(8), /* 操作 */
    .data-table td:nth-child(8) {
        width: 60px;
        min-width: 60px;
    }
    
    .delete-btn {
        padding: 0.375rem 0.75rem;
        font-size: 0.75rem;
    }
}

/* 超小屏幕优化 */
@media (max-width: 480px) {
    .container {
        padding: 0.5rem;
        padding-top: 1rem;
    }
    
    .form-container {
        padding: 1rem;
        max-width: 100%;
    }
    
    .title {
        font-size: 1.5rem;
    }
    
    .logo-icon {
        width: 90px;
        height: 90px;
    }
    
    .form-input, .form-textarea {
        padding: 0.75rem;
    }
    
    .submit-btn {
        padding: 0.875rem;
    }
    
    .admin-container {
        margin: 0.5rem;
        padding: 0.75rem;
    }
    
    .data-table {
        font-size: 0.7rem;
    }
    
    .data-table th,
    .data-table td {
        padding: 0.375rem 0.25rem;
    }
}