/* 元智大學資訊管理學系 第三十屆專業實習競賽報告 - MiTAC 神達電腦 */

:root {
    --primary-blue: #0066cc;
    --secondary-blue: #004499;
    --accent-color: #0080ff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-600: #475569;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --white: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: 'Inter', 'Noto Sans TC', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    /* MODIFICATION 1: Set body background to dark to prevent initial white flash */
    background: #2c3e50;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* 導航列設計 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    transition: all 0.3s ease;
    height: 80px;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.5rem;
    flex-shrink: 0;
    padding: 8px 0;
}

.logo-icon {
    width: 90px;
    height: 90px;
    margin-right: 16px;
    transition: transform 0.3s ease;
}

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

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

.logo-text {
    font-weight: 700;
    color: var(--secondary-blue); /* 調整為深藍色 */
    font-size: 1.5rem;
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    padding: 8px 16px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-blue);
    background: var(--gray-50);
}

/* 下拉選單設計 */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    min-width: 200px;
    z-index: 100;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-link {
    display: block;
    padding: 12px 16px;
    text-decoration: none;
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: all 0.3s ease;
    border-bottom: 1px solid var(--gray-100);
}

.dropdown-link:last-child {
    border-bottom: none;
}

.dropdown-link:hover {
    background: var(--gray-50);
    color: var(--primary-blue);
    padding-left: 20px;
}

/* 主標題區域 */
.title-section {
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.4)), url('image/company/mic_news_initial.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.title-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 1;
}

.title-container {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    max-width: 900px;
    padding: 0 20px;
}

.title-content {
    margin-bottom: 4rem;
}

.main-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, #ffffff, #e2e8f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    letter-spacing: -1px;
    line-height: 1.1;
}

.sub-title {
    font-size: 1.8rem;
    font-weight: 500;
    margin-bottom: 3rem;
    color: rgba(255, 255, 255, 0.95);
    letter-spacing: 0.5px;
}

.unified-info {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 24px;
    padding: 2.5rem;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    max-width: 700px;
    margin: 0 auto;
}

.unified-info:hover {
    transform: translateY(-2px);
    box-shadow: 
        0 12px 40px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.info-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.info-row:last-child {
    border-bottom: none;
}

.info-row:hover {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding-left: 1rem;
    padding-right: 1rem;
}

.info-highlight {
    font-weight: 600;
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    min-width: 120px;
    text-align: left;
    display: flex;
    align-items: center;
}

.info-highlight::after {
    content: '';
    width: 4px;
    height: 4px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 50%;
    margin: 0 1rem;
}

.info-text {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.95);
    font-weight: 500;
    text-align: right;
    flex: 1;
    line-height: 1.4;
}

/* 向下滾動按鈕 */
.scroll-down-container {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    text-align: center;
}

.scroll-down-btn {
    background: transparent;
    border: none;
    padding: 16px 28px;
    cursor: pointer;
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    font-family: inherit;
    position: relative;
    outline: none !important;
    -webkit-tap-highlight-color: transparent;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.scroll-down-btn:focus,
.scroll-down-btn:active,
.scroll-down-btn:hover {
    outline: none !important;
    border: none !important;
}

.scroll-down-btn:hover {
    transform: translateY(-2px);
}

.scroll-down-btn:active {
    transform: translateY(-1px);
}

.scroll-down-btn i {
    font-size: 1.2rem;
    animation: bounce 2s infinite;
    color: rgba(255, 255, 255, 0.85);
    transition: color 0.3s ease;
}

.scroll-text {
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
    transition: color 0.3s ease;
}

.scroll-down-btn:hover i {
    color: rgba(255, 255, 255, 1);
}

.scroll-down-btn:hover .scroll-text {
    color: rgba(255, 255, 255, 1);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-5px);
    }
    60% {
        transform: translateY(-3px);
    }
}

/* 公司介紹區域 */
.company-section {
    padding: 120px 0;
    /* MODIFICATION 2: Explicitly set a white background color here */
    background-color: var(--white);
    background-image: 
        linear-gradient(135deg, rgba(0, 102, 204, 0.02) 0%, rgba(255, 255, 255, 1) 25%, rgba(0, 128, 255, 0.02) 100%),
        radial-gradient(circle at 30% 20%, rgba(0, 102, 204, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(0, 128, 255, 0.05) 0%, transparent 50%);
    position: relative;
    overflow: hidden;
}

.company-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(90deg, transparent 0%, rgba(0, 102, 204, 0.02) 50%, transparent 100%),
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 40px,
            rgba(0, 102, 204, 0.01) 40px,
            rgba(0, 102, 204, 0.01) 80px
        );
    opacity: 0.6;
    z-index: 1;
}

.company-section::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(0, 102, 204, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(0, 128, 255, 0.06) 0%, transparent 40%);
    z-index: 1;
    animation: slowRotate 60s linear infinite;
}

@keyframes slowRotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.company-section .container {
    position: relative;
    z-index: 2;
}

.section-header {
    text-align: center;
    margin-bottom: 5rem;
    position: relative;
}

.section-title {
    font-size: 3.2rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-color) 50%, var(--primary-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    letter-spacing: -0.02em;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.section-title::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
    border-radius: 2px;
    opacity: 0.6;
}

.section-divider {
    width: 100px;
    height: 5px;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-color), var(--primary-blue));
    margin: 0 auto;
    border-radius: 3px;
    position: relative;
    box-shadow: 0 2px 8px rgba(0, 102, 204, 0.3);
}

.section-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -8px;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: var(--accent-color);
    border-radius: 50%;
    box-shadow: 0 0 0 3px rgba(0, 128, 255, 0.2);
}

.section-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -8px;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: var(--primary-blue);
    border-radius: 50%;
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.2);
}

.company-content {
    max-width: 1200px;
    margin: 0 auto;
}

.company-info {
    text-align: center;
    margin-bottom: 4rem;
}

.company-description {
    max-width: 800px;
    margin: 0 auto;
    padding: 0;
}

.company-description h3 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    line-height: 1.2;
    letter-spacing: -0.01em;
}

.company-description p {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin: 0;
    font-weight: 400;
    text-align: justify;
    hyphens: auto;
}

.company-environment {
    text-align: center;
}

.company-environment h3 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
    line-height: 1.2;
    letter-spacing: -0.01em;
}

.environment-gallery {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

.environment-item {
    background: 
        linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.9) 100%),
        linear-gradient(135deg, rgba(0, 102, 204, 0.02) 0%, rgba(0, 128, 255, 0.02) 100%);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 24px;
    padding: 1.5rem;
    box-shadow: 
        0 20px 40px -8px rgba(0, 0, 0, 0.1),
        0 10px 15px -5px rgba(0, 0, 0, 0.05),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.environment-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue) 0%, var(--accent-color) 50%, var(--primary-blue) 100%);
    border-radius: 24px 24px 0 0;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.environment-item:hover::before {
    opacity: 1;
}

.environment-item:hover {
    transform: translateY(-12px) scale(1.03);
    box-shadow: 
        0 32px 60px -12px rgba(0, 0, 0, 0.15),
        0 20px 30px -8px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 1);
    border-color: rgba(255, 255, 255, 0.6);
}

.environment-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 16px;
    margin-bottom: 1rem;
    transition: all 0.3s ease;
    filter: brightness(1) contrast(1);
}

.environment-item:hover img {
    transform: scale(1.05);
    filter: brightness(1.05) contrast(1.05);
}

.environment-label {
    display: block;
    text-align: center;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.01em;
}

/* 標籤頁導航樣式 */
.tab-navigation-section {
    /* MODIFICATION 3: Set background to solid white */
    background: var(--white);
    /* backdrop-filter: blur(10px); - This is less effective with a solid background */
    border-bottom: 1px solid var(--gray-200);
    position: sticky;
    top: 80px;
    z-index: 100;
    padding: 1rem 0;
}

.tab-navigation {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    max-width: 800px;
    margin: 0 auto;
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 1rem;
    box-shadow: 
        0 4px 6px -1px rgba(0, 0, 0, 0.1),
        0 2px 4px -1px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(226, 232, 240, 0.5);
}

.tab-button {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: transparent;
    border: none;
    border-radius: 0.75rem;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    min-width: 180px;
    justify-content: center;
    font-family: inherit;
}

.tab-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-color));
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.tab-button:hover {
    color: var(--primary-blue);
    background: rgba(37, 99, 235, 0.05);
    transform: translateY(-1px);
}

.tab-button:hover::before {
    opacity: 0.1;
}

.tab-button.active {
    color: white;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-color));
    box-shadow: 
        0 4px 12px rgba(37, 99, 235, 0.3),
        0 2px 6px rgba(37, 99, 235, 0.2);
    transform: translateY(-2px);
}

.tab-button.active::before {
    opacity: 1;
}

.tab-button i {
    font-size: 1.125rem;
    transition: transform 0.3s ease;
}

.tab-button:hover i {
    transform: scale(1.1);
}

.tab-button.active i {
    transform: scale(1.05);
}

/* 標籤內容區域 */
.content-area {
    /* MODIFICATION 3: Set background to solid white */
    background: var(--white);
    padding: 3rem 0;
    min-height: 60vh;
}

.tab-content {
    display: none;
    animation: fadeInContent 0.5s ease-in-out;
}

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

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

.content-wrapper {
    max-width: 1000px;
    margin: 0 auto;
}

.content-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.content-section {
    background: white;
    border-radius: 1rem;
    padding: 2.5rem;
    margin-bottom: 2rem;
    box-shadow: 
        0 4px 6px -1px rgba(0, 0, 0, 0.1),
        0 2px 4px -1px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(226, 232, 240, 0.5);
    transition: all 0.3s ease;
}

.content-section:hover {
    transform: translateY(-2px);
    box-shadow: 
        0 10px 15px -3px rgba(0, 0, 0, 0.1),
        0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.content-section h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid rgba(37, 99, 235, 0.1);
    position: relative;
}

.content-section h3::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-color));
}

.content-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    text-align: justify;
}

.content-list {
    margin: 1.5rem 0;
    padding-left: 0;
}

.content-list li {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    padding-left: 1.5rem;
    position: relative;
}

.content-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    font-weight: bold;
}

.content-list.ordered {
    counter-reset: item;
}

.content-list.ordered li {
    counter-increment: item;
}

.content-list.ordered li::before {
    content: counter(item) '.';
    color: var(--primary-blue);
    font-weight: 600;
    width: 1.5rem;
}

.content-image {
    margin: 2rem 0;
    text-align: center;
}

.content-image img {
    max-width: 100%;
    height: auto;
    border-radius: 0.75rem;
    box-shadow: 
        0 10px 15px -3px rgba(0, 0, 0, 0.1),
        0 4px 6px -1px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.content-image img:hover {
    transform: scale(1.02);
}

.image-caption {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 0.75rem;
    font-style: italic;
}

/* 學生資訊標題區 - 沉穩專業設計 */
.intern-header-section {
    background: 
        linear-gradient(135deg, 
            #2c3e50 0%, 
            #34495e 25%, 
            #3d566e 50%, 
            #455a75 75%, 
            #4a5f7a 100%
        );
    padding: 4rem 0;
    margin-top: 80px;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(74, 95, 122, 0.3);
}

/* 主要網格背景層 */
.intern-header-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(74, 95, 122, 0.6) 1px, transparent 1px),
        linear-gradient(90deg, rgba(74, 95, 122, 0.6) 1px, transparent 1px);
    background-size: 40px 40px;
    background-position: 0 0, 0 0;
    z-index: 1;
    animation: primaryGridMove 15s linear infinite;
    opacity: 0.8;
}

/* 次要網格背景層 */
.intern-header-section::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(82, 109, 130, 0.35) 1px, transparent 1px),
        linear-gradient(90deg, rgba(82, 109, 130, 0.35) 1px, transparent 1px);
    background-size: 80px 80px;
    background-position: 0 0, 0 0;
    z-index: 1;
    animation: secondaryGridMove 20s linear infinite reverse;
    opacity: 0.6;
}

/* 光暈效果背景 */
.intern-header-section .glow-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 25% 25%, rgba(82, 133, 184, 0.25) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(64, 113, 162, 0.2) 0%, transparent 45%),
        radial-gradient(circle at 50% 50%, rgba(70, 120, 170, 0.15) 0%, transparent 60%);
    z-index: 2;
    animation: gentleGlow 12s ease-in-out infinite;
}

/* 網格動畫 */
@keyframes primaryGridMove {
    0% {
        background-position: 0 0, 0 0;
    }
    100% {
        background-position: 40px 40px, 40px 40px;
    }
}

@keyframes secondaryGridMove {
    0% {
        background-position: 0 0, 0 0;
    }
    100% {
        background-position: 80px 80px, 80px 80px;
    }
}

/* 柔和光暈動畫 */
@keyframes gentleGlow {
    0%, 100% {
        opacity: 1;
        transform: scale(1) rotate(0deg);
    }
    25% {
        opacity: 0.7;
        transform: scale(1.08) rotate(1deg);
    }
    50% {
        opacity: 0.9;
        transform: scale(0.95) rotate(0deg);
    }
    75% {
        opacity: 0.8;
        transform: scale(1.05) rotate(-1deg);
    }
}

.intern-header-content {
    position: relative;
    z-index: 3;
    text-align: center;
}

.intern-header-content .student-name {
    color: #ffffff;
    font-size: 3rem;
    font-weight: 700;
    margin: 0;
    text-shadow: 
        0 2px 12px rgba(0, 0, 0, 0.5),
        0 4px 20px rgba(52, 73, 94, 0.4),
        0 0 30px rgba(255, 255, 255, 0.1);
    letter-spacing: -0.02em;
    line-height: 1.2;
    position: relative;
    opacity: 0;
    transform: translateY(30px);
    animation: smoothFadeInUp 1.5s ease-out forwards;
}

/* 名字底部裝飾線 */
.intern-header-content .student-name::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(82, 133, 184, 0.9) 20%, 
        rgba(100, 150, 200, 1) 50%, 
        rgba(82, 133, 184, 0.9) 80%, 
        transparent 100%
    );
    border-radius: 2px;
    box-shadow: 
        0 0 20px rgba(82, 133, 184, 0.6),
        0 0 40px rgba(82, 133, 184, 0.3);
    animation: simpleUnderlineGrow 1.2s ease-out 0.8s forwards;
}

/* 簡化的文字淡入動畫 */
@keyframes smoothFadeInUp {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 簡化的底線展開動畫 */
@keyframes simpleUnderlineGrow {
    0% {
        width: 0;
        opacity: 0;
    }
    100% {
        width: 120px;
        opacity: 1;
    }
}

/* 響應式設計 - 標籤頁 */
@media (max-width: 768px) {
    .tab-navigation-section {
        top: 80px;
        padding: 0.75rem 0;
    }
    
    .tab-navigation {
        flex-direction: column;
        gap: 0.25rem;
        padding: 0.5rem;
        margin: 0 1rem;
    }
    
    .tab-button {
        min-width: auto;
        padding: 0.875rem 1rem;
        font-size: 0.95rem;
    }
    
    .content-title {
        font-size: 2rem;
    }
    
    .content-section {
        padding: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    .content-section h3 {
        font-size: 1.25rem;
    }
    
    .content-text {
        font-size: 1rem;
    }
    
    .title-section {
        padding-top: 60px;
        min-height: 80vh;
    }
    
    .scroll-down-container {
        bottom: 20px;
    }
    
    .scroll-down-btn {
        padding: 12px 20px;
        font-size: 0.9rem;
    }
    
    .scroll-down-btn i {
        font-size: 1.1rem;
    }
    
    .scroll-text {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .tab-navigation {
        margin: 0 0.5rem;
    }
    
    .tab-button {
        padding: 0.75rem;
        font-size: 0.9rem;
        gap: 0.5rem;
    }
    
    .content-title {
        font-size: 1.75rem;
    }
    
    .content-section {
        padding: 1rem;
    }
}

/* 動畫性能優化 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* 列印樣式 */
@media print {
    .navbar,
    .back-to-top,
    .mobile-menu-toggle {
        display: none !important;
    }
    
    .title-section {
        background: white !important;
        color: black !important;
        page-break-after: always;
    }
    
    .company-section,
    .business-section,
    .location-section {
        background: white !important;
        box-shadow: none !important;
    }
    
    .glass-card,
    .address-card {
        background: white !important;
        border: 1px solid #ccc !important;
        backdrop-filter: none !important;
    }
}

/* 選取文字樣式 */
::selection {
    background: rgba(37, 99, 235, 0.2);
    color: var(--primary-blue);
}

::-moz-selection {
    background: rgba(37, 99, 235, 0.2);
    color: var(--primary-blue);
}

/* 滾動條樣式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-blue);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-blue);
}

/* 載入動畫 */
.loading {
    opacity: 0;
    animation: fadeIn 0.5s ease-in-out forwards;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* 焦點樣式（無障礙設計） */
.nav-link:focus,
.back-to-top:focus,
button:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* 返回頂部按鈕樣式 */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-color));
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: 
        0 8px 25px rgba(0, 102, 204, 0.3),
        0 4px 10px rgba(0, 102, 204, 0.2);
    transition: all 0.3s ease;
    z-index: 1000;
    opacity: 0;
    transform: translateY(20px);
}

.back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
    display: flex;
}

.back-to-top:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 
        0 12px 35px rgba(0, 102, 204, 0.4),
        0 6px 15px rgba(0, 102, 204, 0.3);
    background: linear-gradient(135deg, var(--secondary-blue), var(--primary-blue));
}

.back-to-top:active {
    transform: translateY(0) scale(0.95);
}

.back-to-top i {
    transition: transform 0.3s ease;
}

.back-to-top:hover i {
    transform: translateY(-2px);
}

/* 返回頂部按鈕響應式設計 */
@media (max-width: 768px) {
    .back-to-top {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 48px;
        height: 48px;
        font-size: 1.1rem;
    }
}

/* 圖片載入動畫 */
.company-img {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.company-img.loaded {
    opacity: 1;
}

/* 動畫效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInFromTop {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.title-container > * {
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
}

.title-container > *:nth-child(1) {
    animation-delay: 0.2s;
}

.title-container > *:nth-child(2) {
    animation-delay: 0.4s;
}

.title-container > *:nth-child(3) {
    animation-delay: 0.6s;
}

.company-content > *,
.business-card,
.address-card {
    animation: fadeInUp 0.6s ease forwards;
}

.navbar {
    animation: slideInFromTop 0.8s ease forwards;
}

/* 手機選單按鈕樣式 */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.mobile-menu-toggle:hover {
    background: var(--gray-50);
    color: var(--primary-blue);
}

.mobile-menu-toggle:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* 響應式設計 - 移動裝置 */
@media (max-width: 768px) {
    /* 手機選單按鈕顯示 */
    .mobile-menu-toggle {
        display: block;
    }
    
    /* 隱藏桌面版選單 */
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--white);
        border-top: 1px solid var(--gray-200);
        box-shadow: var(--shadow-lg);
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 1rem 0;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-20px);
        transition: all 0.3s ease;
        z-index: 999;
        max-height: calc(100vh - 80px);
        overflow-y: auto;
    }
    
    /* 手機選單顯示狀態 */
    .nav-menu.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    
    /* 手機版導航連結 */
    .nav-link {
        padding: 1rem 2rem;
        font-size: 1rem;
        border-radius: 0;
        border-bottom: 1px solid var(--gray-100);
        justify-content: flex-start;
    }
    
    .nav-link:last-child {
        border-bottom: none;
    }
    
    .nav-link:hover,
    .nav-link.active {
        background: var(--gray-50);
        padding-left: 2.5rem;
    }
    
    /* 手機版下拉選單 */
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        border: none;
        border-radius: 0;
        box-shadow: none;
        background: var(--gray-50);
        margin-left: 1rem;
    }
    
    .dropdown-link {
        padding: 0.75rem 2rem;
        font-size: 0.95rem;
        border-bottom: 1px solid var(--gray-200);
    }
    
    .dropdown-link:hover {
        padding-left: 2.5rem;
        background: var(--gray-100);
    }
    
    /* Logo 調整 */
    .logo-text {
        font-size: 1.25rem;
    }
    
    .logo-icon {
        width: 70px;
        height: 70px;
        margin-right: 12px;
    }
    
    /* 導航容器調整 */
    .nav-container {
        padding: 0 1rem;
    }
}

/* 頁尾設計 */
.footer {
    background: var(--gray-900);
    color: var(--white);
    padding: 3rem 0 2rem;    
    border-top: 1px solid var(--gray-800);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-blue), transparent);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    text-align: center;
}

.footer-content p {
    font-size: 0.95rem;
    color: var(--gray-300);
    font-weight: 400;
    letter-spacing: 0.5px;
    margin: 0;
}

.footer-content p::before {
    content: '🎓';
    margin-right: 8px;
    font-size: 1.1rem;
}

/* 頁尾響應式設計 */
@media (max-width: 768px) {
    .footer {
        padding: 2rem 0 1.5rem;
        margin-top: 2rem;
    }
    
    .footer-content p {
        font-size: 0.9rem;
        line-height: 1.5;
    }
}

/* 現代商業風格佈局 */
.modern-section-item {
    background: var(--white);
    border-radius: 1rem;
    padding: 2.5rem;
    margin-bottom: 2rem;
    box-shadow: 
        0 4px 6px -1px rgba(0, 0, 0, 0.1),
        0 2px 4px -1px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(226, 232, 240, 0.5);
    transition: all 0.3s ease;
}

.modern-section-item:hover {
    transform: translateY(-2px);
    box-shadow: 
        0 10px 15px -3px rgba(0, 0, 0, 0.1),
        0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.modern-layout-container {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.modern-text-content {
    flex: 1;
    min-width: 0;
}

.modern-image-content {
    flex: 0 0 auto;
    max-width: 300px;
}

.modern-text-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid rgba(37, 99, 235, 0.1);
    position: relative;
}

.modern-text-content h3::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-color));
}

.modern-text-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    text-align: justify;
}

.modern-image-content img {
    width: 100%;
    height: auto;
    border-radius: 0.75rem;
    box-shadow: 
        0 10px 15px -3px rgba(0, 0, 0, 0.1),
        0 4px 6px -2px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.modern-image-content img:hover {
    transform: scale(1.02);
}

/* 現代佈局響應式設計 */
@media (max-width: 768px) {
    .modern-layout-container {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .modern-image-content {
        max-width: 100%;
        order: -1;
    }
    
    .modern-section-item {
        padding: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    .modern-text-content h3 {
        font-size: 1.25rem;
    }
    
    .modern-text-content p {
        font-size: 1rem;
    }
}