/* ==========================================================================
   1. 全域設定 (Global Settings)
   ========================================================================== */
:root {
    --bg-dark: #121212;
    --bg-surface: #1e1e1e;
    --primary-accent: #00f5a0;
    --primary-accent-darker: #00d48a;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --border-color: #333333;
    --white-color: #ffffff;
    --font-family: 'Noto Sans TC', 'Helvetica Neue', Arial, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-dark);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.infographic-container {
    background-color: var(--bg-surface);
    padding: 2rem;
    border-radius: 8px;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* 確保所有圖片不會超出容器寬度 */
.infographic-container img {
    max-width: 100%;
    height: auto; /* 讓高度自動縮放，維持比例 */
}

/* 設定特定圖片的高度 */
.chart-large {
    height: 350px;
}

.chart-small {
    height: 180px;
}

/* ==========================================================================
   2. 共用元件 (Shared Components)
   ========================================================================== */

/* --- 動畫效果 --- */
.reveal {
    position: relative;
    transform: translateY(100px);
    opacity: 0;
    transition: 1s all ease;
}
.reveal.active {
    transform: translateY(0);
    opacity: 1;
}
.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 3rem 0;
}
.comparison-column {
    background-color: var(--bg-surface);
    padding: 2rem;
    border-radius: 8px;
}
.comparison-column h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    text-align: center;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 1rem;
}
.comparison-column ul { list-style: none; }
.comparison-column li { margin-bottom: 1rem; font-size: 1.1rem; }
.comparison-column .advantage { color: var(--primary-accent); }
.comparison-column .disadvantage { color: #ff6b6b; }
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-align: center;
}
.market-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}
.market-card {
    background-color: var(--bg-surface);
    padding: 2rem;
    border-radius: 8px;
}
blockquote {
    border-left: 4px solid var(--primary-accent);
    padding-left: 1.5rem;
    margin: 2rem 0;
    font-size: 1.2rem;
    font-style: italic;
    color: var(--text-secondary);
}
/* --- 服務頁 --- */
.service-list, .process-steps {
    list-style: none;
    margin-top: 2rem;
}
.service-list li {
    background: var(--bg-surface);
    margin-bottom: 0.5rem;
    padding: 0.8rem 1.5rem;
    border-radius: 5px;
}
.process-steps { position: relative; }
.process-steps::before { /* Timeline line */
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 4px;
    background-color: var(--border-color);
}
.step {
    position: relative;
    padding-left: 55px;
    margin-bottom: 2.5rem;
}
.step-number {
    position: absolute;
    left: 10px;
    top: -5px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-accent);
    color: #000;
    font-size: 1.2rem;
    font-weight: 700;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 5px solid var(--bg-dark);
}
.step h4 { font-size: 1.4rem; color: var(--white-color); }
.step p { color: var(--text-secondary); }

/* --- 導覽列 (Header) --- */
.main-header {
    background-color: rgba(18, 18, 18, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 9998;
}

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

.logo img {
    height: 50px; /* 控制 Logo 圖片高度 */
    display: block;
}

/* 電腦版導覽列 */
.main-nav ul {
    list-style-type: none;
    display: flex;
}

.main-nav ul li {
    margin-left: 2rem;
}

.main-nav ul li a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 1rem;
    padding-bottom: 5px;
    border-bottom: 2px solid transparent;
    transition: color 0.3s ease, border-color 0.3s ease;
}

.main-nav ul li a:hover,
.main-nav ul li a.active {
    color: var(--primary-accent);
    border-bottom-color: var(--primary-accent);
}

/* --- 頁尾 (Footer) --- */
.main-footer {
    background-color: var(--bg-surface);
    padding: 4rem 0 2rem 0;
    border-top: 1px solid var(--border-color);
}
.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid var(--border-color);
}
.main-footer h3 {
    color: var(--white-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}
.main-footer a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}
.main-footer a:hover {
    color: var(--primary-accent);
}
.footer-contact-info p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}
.footer-links ul {
    list-style: none;
}
.footer-links ul li {
    margin-bottom: 0.5rem;
}
.footer-bottom {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* --- 按鈕 (Buttons) --- */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
    margin: 5px;
}
.btn-primary {
    background-color: var(--primary-accent);
    color: #000;
}
.btn-primary:hover {
    background-color: var(--primary-accent-darker);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 245, 160, 0.2);
}
.btn-secondary {
    color: var(--primary-accent);
    border-color: var(--primary-accent);
}
.btn-secondary:hover {
    background-color: var(--primary-accent);
    color: #000;
    transform: translateY(-3px);
}

/* --- 內容區塊 (Content Blocks) --- */
.page-hero {
    padding: 4rem 0;
    background-color: var(--bg-surface);
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}
.page-title {
    font-size: 3rem;
    color: var(--white-color);
    margin-bottom: 0.5rem;
}
.page-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}
.content-section {
    padding: 80px 0;
}
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-align: center;
}
.section-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem auto;
    color: var(--text-secondary);
}
.highlight {
    color: var(--primary-accent);
}

/* ==========================================================================
   3. 各頁面樣式 (Page-Specific Styles)
   ========================================================================== */

/* --- 首頁 (Home Page) --- */
.hero-section {
    position: relative;
    height: 90vh;
    display: flex;
    align-items: center;
    background: url('assets/hero-background.jpg') no-repeat center center/cover;
    z-index: 1;
}
.hero-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to right, rgba(18, 18, 18, 0.95), rgba(18, 18, 18, 0.7));
    z-index: 2;
}
.hero-content {
    position: relative;
    max-width: 800px;
    text-align: center;
    margin: 0 auto;
    z-index: 3;
}
.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
    color: var(--white-color, #fff);
}
.hero-subtitle {
    font-size: 1.2rem;
    font-weight: 300;
    margin-bottom: 2rem;
    color: var(--text-secondary);
}
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}
.feature-item {
    background-color: var(--bg-surface);
    padding: 2rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary-accent);
    transition: transform 0.3s ease;
}
.feature-item:hover {
    transform: translateY(-5px);
}
.feature-item h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}
.feature-item p {
    color: var(--text-secondary);
}
.feature-icon {
    font-size: 2.5rem;
    color: var(--primary-accent);
    margin-bottom: 1rem;
}


/* --- 關於我們 (About Page) --- */
.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}
.team-member {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    text-align: center;
    padding: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.team-member:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}
.team-member img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 1rem auto;
    border: 3px solid var(--primary-accent);
}
.team-member h4 {
    font-size: 1.2rem;
    color: var(--white-color);
    margin-bottom: 0.25rem;
}
.team-member .title {
    display: block;
    color: var(--primary-accent);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}
.team-member p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}


/* --- 聯絡頁 --- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
    margin-top: 3rem;
}
.contact-info p {
    font-size: 1.1rem;
    margin-bottom: 1rem;
}
.contact-info a {
    color: var(--primary-accent);
    text-decoration: none;
}
.map-container {
    background-color: var(--bg-surface);
    border-radius: 8px;
    margin-top: 2rem;
    overflow: hidden; /* 確保地圖不會超出圓角 */
}
.map-container iframe {
    width: 100%;
    height: 300px;
    border: 0;
}
.contact-form .form-group {
    margin-bottom: 1.5rem;
}
.contact-form label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}
.contact-form input,
.contact-form textarea,
.contact-form select {
    width: 100%;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    padding: 0.8rem;
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: 1rem;
}
.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
    outline: none;
    border-color: var(--primary-accent);
}
.contact-form textarea {
    min-height: 150px;
    resize: vertical;
}

/* ==========================================================================
   4. 響應式設計 (Responsive Design)
   ========================================================================== */
@media (max-width: 768px) {

    /* --- General Layout --- */
    .footer-content, .contact-grid, .team-grid, .philosophy-grid, .features-grid {
        grid-template-columns: 1fr;
    }
    .comparison-grid {
    grid-template-columns: 1fr;
    }
    .hero-title, .page-title {
        font-size: 2.5rem;
    }

    /* --- Mobile Navigation: Hamburger Button --- */
    .nav-toggle {
        display: block;
        background: transparent;
        border: 0;
        cursor: pointer;
        padding: 0.5em;
        position: absolute;
        top: 1.5rem;
        right: 1.5rem;
        z-index: 10000;
    }
    .hamburger {
        display: block;
        position: relative;
    }
    .hamburger,
    .hamburger::before,
    .hamburger::after {
        background: var(--text-primary);
        width: 2em;
        height: 3px;
        border-radius: 1em;
        transition: transform 250ms ease-in-out;
    }
    .hamburger::before,
    .hamburger::after {
        content: '';
        position: absolute;
        left: 0;
        right: 0;
    }
    .hamburger::before { top: 6px; }
    .hamburger::after { bottom: 6px; }

    /* --- Mobile Navigation: Menu Panel --- */
    .main-nav {
        display: block;
        position: fixed;
        background: rgba(20, 20, 20, 0.95);
        top: 0;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 9999;
        transform: translateX(100%);
        transition: transform 250ms cubic-bezier(.5, 0, .5, 1);
    }
    .main-nav ul {
        flex-direction: column;
        justify-content: center;
        align-items: center;
        height: 100%;
        width: 100%;
        margin: 0;
        padding: 6rem 0; /* 上下留白，避免內容被切到 */
    }
    .main-nav ul li {
        margin: 0.5rem 0;
    }
    .main-nav a {
        font-size: 1.5rem;
        padding: 1rem;
        color: white;
        opacity: 0;
        transform: translateY(1rem);
        transition: opacity 250ms linear, transform 250ms ease-in-out;
    }

    /* --- State when Mobile Menu is Open --- */
    .nav-open .main-nav {
        transform: translateX(0);
    }
    .nav-open .main-nav a {
        opacity: 1;
        transform: translateY(0);
        transition-delay: 200ms;
    }
    .nav-open .hamburger {
        transform: rotate(.625turn);
    }
    .nav-open .hamburger::before {
        transform: rotate(90deg) translateX(-6px);
    }
    .nav-open .hamburger::after {
        opacity: 0;
    }
    .nav-open body {
        overflow: hidden; /* 防止背景滾動 */
    }
}