body {
    font-family: 'Noto Sans SC', 'Inter', sans-serif;
    background-color: #f8f9fa;
    color: var(--text-color);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
    min-height: 100vh;
}
/* 头部样式增强 */
.header-section {
    text-align: center;
    margin: 4rem 0 3rem;
    padding: 0 15px;
    position: relative;
    z-index: 1;
}

.logo-container {
    display: inline-block;
    position: relative;
    padding: 1rem 2rem;
}

.logo {
    font-family: 'Montserrat', 'Noto Sans SC', sans-serif;
    font-size: 2.8rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-decoration: none;
    letter-spacing: 1px;
    display: inline-block;
    position: relative;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 10px rgba(78, 115, 223, 0.2);
}

.logo::before {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient);
    border-radius: 2px;
    box-shadow: 0 2px 10px rgba(78, 115, 223, 0.3);
}

.logo::after {
    content: '';
    position: absolute;
    top: -15px;
    right: -25px;
    width: 20px;
    height: 20px;
    background-size: contain;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.7; }
    50% { transform: scale(1.1); opacity: 1; }
    100% { transform: scale(1); opacity: 0.7; }
}

.slogan {
    color: var(--text-light);
    font-size: 1.1rem;
    margin-top: 1.5rem;
    font-weight: 400;
    letter-spacing: 1px;
    position: relative;
}

.slogan::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 2px;
    background-color: var(--primary-color);
    opacity: 0.5;
}

/* 搜索框区域美化 */
.search-container {
    max-width: 1200px;
    margin: 3rem auto;
    padding: 0 15px;
    position: relative;
    z-index: 1;
}

.search-box {
    position: relative;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-radius: 50px;
    overflow: hidden;
    background: white;
}

.search-box:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(78, 115, 223, 0.25);
}

.search-input {
    height: 68px;
    border-radius: 50px;
    padding: 0 30px;
    border: none;
    font-size: 1.1rem;
    background-color: transparent;
    transition: var(--transition);
    font-weight: 400;
    color: var(--text-color);
    position: relative;
    z-index: 1;
}

.search-input::placeholder {
    color: #b7b9cc;
    font-weight: 300;
}

.search-input:focus {
    box-shadow: 0 0 0 4px rgba(78, 115, 223, 0.15);
    outline: none;
    background-color: rgba(250, 251, 255, 0.8);
}

.search-btn {
    position: absolute;
    right: 10px;
    top: 10px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient);
    color: white;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    box-shadow: 0 2px 8px rgba(78, 115, 223, 0.3);
    z-index: 2;
}

.search-btn:hover {
    background: var(--gradient-hover);
    transform: scale(1.05) rotate(5deg);
    box-shadow: 0 4px 15px rgba(78, 115, 223, 0.4);
}

.search-btn i {
    font-size: 1.2rem;
}

/* 热门搜索标签 */
.popular-searches {
    margin-top: 3rem;
    text-align: center;
    padding: 0 15px;
    position: relative;
    z-index: 1;
}

.popular-searches h6 {
    color: var(--text-light);
    font-weight: 500;
    margin-bottom: 1.5rem;
    font-size: 1rem;
    letter-spacing: 1px;
    position: relative;
    display: inline-block;
}

.popular-searches h6::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient);
    opacity: 0.5;
}

.popular-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

.popular-tag {
    display: inline-block;
    background: white;
    color: var(--primary-color);
    border: 1px solid var(--border-color);
    padding: 12px 24px;
    border-radius: 30px;
    cursor: pointer;
    font-size: 0.95rem;
    transition: var(--transition);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
    font-weight: 500;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}

.popular-tag::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient);
    opacity: 0;
    transition: var(--transition);
    z-index: 0;
}

.popular-tag span {
    position: relative;
    z-index: 1;
}

.popular-tag:hover {
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(78, 115, 223, 0.2);
    border-color: transparent;
}

.popular-tag:hover::before {
    opacity: 1;
}

/* 结果卡片样式 */
.results-container {
    max-width: 1200px;
    margin: 4rem auto;
    padding: 0 15px;
    display: none;
    position: relative;
    z-index: 1;
}

.result-card {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 2.5rem;
    margin-bottom: 2rem;
    box-shadow: var(--card-shadow);
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(227, 230, 240, 0.5);
}

.result-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -4px;
    width: 4px;
    height: 100%;
    background: var(--gradient);
}

.result-card::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient);
    opacity: 0.1;
}

.result-card:hover {
    box-shadow: var(--card-hover-shadow);
    transform: translateY(-5px);
    background-color: rgba(255, 255, 255, 1);
}

.result-card h4 {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1.5rem;
    font-size: 1.4rem;
    letter-spacing: 0.5px;
    position: relative;
    display: inline-block;
}

.result-card table {
    border-collapse: collapse;
    border-spacing: 0;
    width: 100%;
    text-align: center;
    color: #333;
    font-size: 16px;
    line-height: 1.8em;
    margin-bottom: 32px;
    border: 1px solid #333;
    empty-cells: show;
}

.result-card tr {
    width: 100%;
    text-align: center;
    color: #333;
    font-size: 16px;
    line-height: 1.8em;
    margin-bottom: 32px;
    border: 1px solid #333;
    empty-cells: show;
}

.result-card th {
    text-align: center;
    color: #333;
    font-size: 16px;
    line-height: 1.8em;
    margin-bottom: 32px;
    border: 1px solid #333;
    empty-cells: show;
}
.result-card td {
    padding: 3px;
    vertical-align: top;
    border: 1px solid #333;
}
.result-card h3 {
    font-size: 20px;
    padding-bottom: 20px;
    line-height: 25px;
    vertical-align: top;
    font-weight: 600;
    color: #00B899;
    line-height: 25px;
}
.result-card h2 {
    font-size: 20px;
    padding-bottom: 20px;
    line-height: 25px;
    vertical-align: top;
    font-weight: 600;
    color: #00B899;
    line-height: 25px;
}
.result-card h1 {
    font-size: 20px;
    padding-bottom: 20px;
    line-height: 25px;
    vertical-align: top;
    font-weight: 600;
    color: #00B899;
    line-height: 25px;
}

.result-card h4::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient);
    border-radius: 3px;
    opacity: 0.3;
}

/* 结果内容样式 */
.result-content {
    color: var(--text-color);
    line-height: 1.8;
    font-size: 1.05rem;
}

.result-content p {
    margin-bottom: 1.5rem;
}

.result-content h2,
.result-content h3,
.result-content h4 {
    color: var(--text-color);
    margin: 2rem 0 1rem;
    font-weight: 600;
}

.result-content h2 {
    font-size: 1.5rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.8rem;
    position: relative;
}

.result-content h2::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 80px;
    height: 2px;
    background: var(--gradient);
}

.result-content h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
}

.result-content h4 {
    font-size: 1.15rem;
    color: var(--primary-color);
}

.result-content ul,
.result-content ol {
    padding-left: 1.8rem;
    margin-bottom: 1.5rem;
}

.result-content li {
    margin-bottom: 0.6rem;
    position: relative;
    padding-left: 0.5rem;
}

.result-content li::marker {
    color: var(--primary-color);
    font-weight: bold;
}

.result-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.result-content th,
.result-content td {
    padding: 12px 15px;
    border: 1px solid var(--border-color);
}

.result-content th {
    background: var(--gradient);
    color: white;
    font-weight: 500;
    text-align: left;
}

.result-content tr:nth-child(even) {
    background-color: rgba(78, 115, 223, 0.03);
}

.result-content tr:hover {
    background-color: rgba(78, 115, 223, 0.08);
}

.result-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding: 1.5rem 2rem;
    margin: 2rem 0;
    background-color: rgba(78, 115, 223, 0.05);
    border-radius: 0 8px 8px 0;
    color: #6e707e;
    font-style: italic;
    position: relative;
    overflow: hidden;
}

.result-content blockquote::before {
    content: '"';
    position: absolute;
    top: 10px;
    left: 10px;
    font-size: 3rem;
    color: rgba(78, 115, 223, 0.2);
    line-height: 1;
}

.result-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 2rem 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color);
}

.result-content a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px dashed var(--primary-color);
    transition: var(--transition);
    position: relative;
}

.result-content a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--gradient);
    transition: var(--transition);
}

.result-content a:hover {
    color: var(--primary-hover);
    border-bottom-color: transparent;
}

.result-content a:hover::after {
    width: 100%;
}

/* 加载状态 */
.loading {
    text-align: center;
    padding: 1.5rem;
    color: var(--primary-color);
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
}

.spinner {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid rgba(0,0,0,.1);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
    margin-right: 12px;
    vertical-align: middle;
}

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

/* 页脚样式 */
footer {
    text-align: center;
    padding: 3rem 15px;
    color: var(--text-light);
    font-size: 0.9rem;
    background-color: rgba(255, 255, 255, 0.8);
    border-top: 1px solid rgba(227, 230, 240, 0.5);
    margin-top: 4rem;
    position: relative;
    z-index: 1;
    backdrop-filter: blur(5px);
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
}

.model-info {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(227, 230, 240, 0.7);
    font-size: 0.8rem;
    color: #b7b9cc;
    line-height: 1.6;
}

/* 装饰元素 */
.decor-circle {
    position: fixed;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(78, 115, 223, 0.05) 0%, rgba(255,255,255,0) 70%);
    z-index: 0;
    pointer-events: none;
    animation: float 15s infinite alternate;
}

.decor-circle-1 {
    top: 10%;
    left: -100px;
}

.decor-circle-2 {
    bottom: 20%;
    right: -80px;
    width: 250px;
    height: 250px;
    animation-delay: 3s;
}

@keyframes float {
    0% { transform: translateY(0px) translateX(0px); }
    50% { transform: translateY(-20px) translateX(20px); }
    100% { transform: translateY(20px) translateX(-20px); }
}

/* 响应式设计 */
@media (max-width: 992px) {
    .decor-circle {
        display: none;
    }
}

@media (max-width: 768px) {
    .header-section {
        margin: 3rem 0 2rem;
    }

    .logo {
        font-size: 2.2rem;
    }

    .slogan {
        font-size: 1rem;
        margin-top: 1rem;
    }

    .search-input {
        height: 60px;
        font-size: 1rem;
        padding: 0 20px;
    }

    .search-btn {
        width: 44px;
        height: 44px;
        right: 8px;
        top: 8px;
    }

    .result-card {
        padding: 2rem 1.5rem;
        margin-bottom: 1.5rem;
        backdrop-filter: blur(5px);
    }

    .result-card h4 {
        font-size: 1.3rem;
        margin-bottom: 1rem;
    }

    .result-content {
        font-size: 1rem;
    }

    .popular-tag {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    .header-section {
        margin: 2rem 0 1.5rem;
    }

    .logo {
        font-size: 2rem;
    }

    .logo::after {
        width: 16px;
        height: 16px;
        right: -20px;
    }

    .popular-searches h6 {
        font-size: 0.95rem;
    }

    .popular-tag {
        padding: 8px 16px;
        font-size: 0.85rem;
    }

    footer {
        padding: 2rem 15px;
        margin-top: 2rem;
    }
}