/* 基础变量定义 */
:root {
    --primary: #00ccff;
    --primary-dark: #0099cc;
    --accent: #6e56cf;
    --dark: #0a0f1a;
    --dark-light: #131b2d;
    --gray: #2a3754;
    --light-gray: #8a96af;
    --white: #ffffff;
    --glow: rgba(0, 204, 255, 0.15);
    --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Roboto', sans-serif;
}

body {
    background-color: var(--dark);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
    opacity: 0;
    transition: opacity 0.6s ease;
}

body.loaded {
    opacity: 1;
}

/* 背景装饰 */
.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(42, 55, 84, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(42, 55, 84, 0.08) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: -2;
}

.bg-glow {
    position: fixed;
    top: 50%;
    left: 50%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--glow) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    z-index: -1;
    filter: blur(80px);
}

/* 容器 */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部导航 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 0;
    z-index: 100;
    transition: var(--transition);
}

.header.scrolled {
    background-color: rgba(10, 15, 26, 0.85);
    backdrop-filter: blur(10px);
    padding: 15px 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background-color: var(--dark-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 20px;
    box-shadow: 0 0 15px rgba(0, 204, 255, 0.2);
}

.logo-text {
    font-size: 22px;
    font-weight: 700;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-item {
    color: var(--light-gray);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 5px 0;
}

.nav-item.active,
.nav-item:hover {
    color: var(--primary);
}

.nav-item.active::after,
.nav-item:hover::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary);
    border-radius: 2px;
}

.btn-admin {
    background-color: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
    padding: 6px 16px;
    border-radius: 6px;
    transition: var(--transition);
}

.btn-admin:hover {
    background-color: var(--primary);
    color: var(--dark);
    box-shadow: 0 0 15px rgba(0, 204, 255, 0.4);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--white);
    font-size: 24px;
    cursor: pointer;
}

/* 主内容区 */
.main {
    padding-top: 160px;
    padding-bottom: 100px;
}

/* 英雄区域 */
.hero {
    text-align: center;
    margin-bottom: 60px;
}

.hero-title {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 32px;
    }
}

.highlight {
    color: var(--primary);
    text-shadow: 0 0 15px rgba(0, 204, 255, 0.5);
}

.hero-desc {
    font-size: 18px;
    color: var(--light-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* 查询面板 */
.query-panel {
    position: relative;
    max-width: 800px;
    margin: 0 auto 80px;
}

.panel-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    filter: blur(30px);
    opacity: 0.2;
    z-index: -1;
}

.panel-content {
    background-color: var(--dark-light);
    border: 1px solid rgba(42, 55, 84, 0.5);
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

/* 表单样式 */
.query-form {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.form-label {
    font-weight: 500;
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-label i {
    color: var(--primary);
}

.input-field {
    position: relative;
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    background-color: var(--dark);
    border: 1px solid var(--gray);
    border-radius: 8px;
    color: var(--white);
    font-size: 16px;
    transition: var(--transition);
    background-clip: padding-box;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 204, 255, 0.2);
}

.input-underline {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    border-radius: 2px;
    transition: var(--transition);
}

.input-field.focused .input-underline {
    width: 100%;
}

/* 验证码 */
.captcha-group {
    display: flex;
    gap: 15px;
}

@media (max-width: 768px) {
    .captcha-group {
        flex-direction: column;
    }
}

.captcha-input {
    flex: 1;
}

.captcha-img {
    width: 120px;
    height: 52px;
    border-radius: 8px;
    object-fit: cover;
    cursor: pointer;
    border: 1px solid var(--gray);
    transition: var(--transition);
}

@media (max-width: 768px) {
    .captcha-img {
        width: 100%;
        height: 60px;
    }
}

.captcha-img:hover {
    border-color: var(--primary);
}

.captcha-hint {
    font-size: 13px;
    color: var(--light-gray);
    margin-top: 5px;
}

/* 提交按钮 */
.submit-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(0, 204, 255, 0.4);
}

/* 功能特点 */
.features {
    margin-top: 100px;
}

.section-title {
    text-align: center;
    font-size: 30px;
    margin-bottom: 60px;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 3px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--dark-light);
    border: 1px solid rgba(42, 55, 84, 0.3);
    border-radius: 12px;
    padding: 30px;
    transition: var(--transition);
}

.feature-con {
    border: 1px solid rgba(42, 55, 84, 0.3);
    border-radius: 12px; 
    padding: 30px; 
    margin: 40px auto; 
    max-width: 600px; 
    text-align: center; 
    background: var(--dark-light);
    backdrop-filter: blur(10px); 
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    border-color: rgba(0, 204, 255, 0.2);
}

.feature-con:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    border-color: rgba(0, 204, 255, 0.2);
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    background-color: rgba(0, 204, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--primary);
    font-size: 24px;
}

.feature-title {
    font-size: 20px;
    margin-bottom: 15px;
}

.feature-desc {
    color: var(--light-gray);
}

/* 结果页样式 */
.alert {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 25px;
}

.alert i {
    font-size: 24px;
    margin-top: 2px;
}

.alert-error {
    background-color: rgba(255, 77, 77, 0.1);
    border: 1px solid rgba(255, 77, 77, 0.2);
}

.alert-error i {
    color: #ff4d4d;
}

.alert-success {
    background-color: rgba(77, 255, 146, 0.1);
    border: 1px solid rgba(77, 255, 146, 0.2);
}

.alert-success i {
    color: #4dff92;
}

.alert-info {
    background-color: rgba(77, 170, 255, 0.1);
    border: 1px solid rgba(77, 170, 255, 0.2);
}

.alert-info i {
    color: #4daaff;
}

.alert-content h3 {
    margin-bottom: 5px;
    font-size: 18px;
}

.alert-content p {
    color: var(--light-gray);
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(42, 55, 84, 0.3);
}

.result-header h3 {
    font-size: 20px;
}

.query-count {
    color: var(--primary);
    font-size: 14px;
    background-color: rgba(0, 204, 255, 0.1);
    padding: 4px 10px;
    border-radius: 12px;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.info-label {
    font-size: 14px;
    color: var(--light-gray);
}

.info-value {
    font-weight: 500;
}

.action-buttons {
    margin-top: 20px;
}

/* 页脚 */
.footer {
    background-color: var(--dark-light);
    border-top: 1px solid rgba(42, 55, 84, 0.3);
    padding: 40px 0;
    margin-top: -80px;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.copyright {
    color: var(--light-gray);
    font-size: 14px;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: var(--light-gray);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

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

/* 移动端适配 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--dark-light);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        border-top: 1px solid rgba(42, 55, 84, 0.3);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .mobile-toggle {
        display: block;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
}

/* 新增 */
.error-message {
    color: #ff4d4f;
    padding: 12px 15px;
    margin-bottom: 15px;
    border-radius: 6px;
    background-color: #fff1f0;
    border: 1px solid #ffccc7;
    display: flex;
    align-items: center;
    font-size: 14px;
}

.error-message i {
    margin-right: 8px;
    font-size: 16px;
}