/* CSS Variables */
:root {
    --color-primary: #1e3a5f;
    --color-primary-dark: #152a45;
    --color-accent: #f97316;
    --color-accent-hover: #ea580c;
    --color-bg: #ffffff;
    --color-bg-alt: #f3f4f6;
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-text-white: #ffffff;
    --color-border: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    --transition: all 0.3s ease;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Section */
.section {
    padding: 80px 0;
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    text-align: center;
    color: var(--color-primary);
    margin-bottom: 48px;
    position: relative;
    padding-bottom: 16px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--color-primary);
    border-radius: 2px;
}

/* Buttons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 36px;
    background-color: var(--color-accent);
    color: var(--color-text-white);
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-line {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    background-color: #06c755;
    color: var(--color-text-white);
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: var(--transition);
    margin-top: 16px;
}

.btn-line:hover {
    background-color: #05a347;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-primary);
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    height: 48px;
    width: auto;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
}

.logo-img {
    height: 100%;
    width: auto;
    object-fit: contain;
    display: block;
}

.logo-icon-text {
    color: var(--color-text-white);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-title {
    color: var(--color-text-white);
    font-size: 20px;
    font-weight: 700;
    line-height: 1.2;
}

.logo-subtitle {
    color: rgba(255, 255, 255, 0.75);
    font-size: 13px;
    line-height: 1.3;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    color: var(--color-text-white);
    font-size: 15px;
    font-weight: 500;
    opacity: 0.9;
}

.nav-links a:hover {
    opacity: 1;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background-color: var(--color-text-white);
    transition: var(--transition);
}

/* Hero */
.hero {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 70px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.07);
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    padding: 80px 24px;
}

.hero-title {
    font-size: 42px;
    font-weight: 700;
    color: var(--color-text-white);
    line-height: 1.3;
    margin-bottom: 20px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 36px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Services */
.services {
    background-color: var(--color-bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 36px 24px;
    text-align: center;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.service-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    margin-bottom: 16px;
}

.service-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.service-card p {
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* Portfolio */
.portfolio {
    background-color: var(--color-bg-alt);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.portfolio-card {
    background-color: var(--color-bg);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.portfolio-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.portfolio-image {
    position: relative;
    aspect-ratio: 4 / 3;
    overflow: hidden;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.portfolio-card:hover .portfolio-image img {
    transform: scale(1.05);
}

.portfolio-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    background-color: var(--color-primary);
    color: var(--color-text-white);
    font-size: 14px;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    z-index: 2;
}

.portfolio-info {
    padding: 16px;
    text-align: center;
}

.portfolio-info h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 4px;
}

.portfolio-info p {
    font-size: 14px;
    color: var(--color-text-light);
}

/* About */
.about {
    background-color: var(--color-bg);
}

.about-content {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 48px;
    align-items: center;
}

.about-text p {
    font-size: 16px;
    color: var(--color-text);
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 28px;
}

.stat-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.stat-icon {
    color: var(--color-primary);
    flex-shrink: 0;
    margin-top: 2px;
}

.stat-item strong {
    font-size: 15px;
    color: var(--color-primary);
    font-weight: 600;
}

.about-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    max-width: 88%;
    margin: 0 auto;
}

.about-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
    transform: scale(1.07);
}

/* Contact */
.contact {
    background-color: var(--color-bg-alt);
}

.contact-content {
    display: flex;
    justify-content: center;
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
}

.contact-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
}

.contact-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--color-primary);
    color: var(--color-text-white);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-detail {
    display: flex;
    flex-direction: column;
    padding-top: 4px;
}

.contact-label {
    font-size: 14px;
    color: var(--color-text-light);
    margin-bottom: 4px;
}

.contact-value {
    font-size: 17px;
    font-weight: 600;
    color: var(--color-text);
}

.contact-value.phone {
    font-size: 24px;
    color: var(--color-accent);
    font-weight: 700;
}

.contact-value.phone:hover {
    color: var(--color-accent-hover);
}

.contact-map {
    min-height: 360px;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.contact-map iframe {
    width: 100%;
    height: 100%;
    min-height: 360px;
    border: 0;
}

/* Footer */
.footer {
    background-color: var(--color-primary);
    color: var(--color-text-white);
    padding: 60px 0 24px;
}

.footer-grid {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 48px;
    margin-bottom: 40px;
}

.footer-brand {
    max-width: 480px;
    flex-shrink: 0;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    line-height: 1.8;
    margin-top: 16px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 4px;
}

.footer-logo .logo-title {
    font-size: 20px;
}

.footer-links h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--color-text-white);
    letter-spacing: 0.5px;
}

.links-columns {
    display: flex;
    gap: 48px;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 15px;
    transition: color 0.2s ease;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    padding-top: 24px;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 13px;
}

/* Mobile Fixed Bottom Bar */
.mobile-fixed-bar {
    display: none;
}

/* Scroll animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--color-primary);
        flex-direction: column;
        gap: 0;
        padding: 16px 0;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        box-shadow: var(--shadow-md);
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        display: block;
        padding: 14px 24px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero-title {
        font-size: 30px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .section-title {
        font-size: 26px;
    }

    .services-grid,
    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }

    .about-image {
        max-width: 80%;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 28px;
    }

    .footer-brand {
        max-width: 100%;
    }

    .footer-logo {
        justify-content: center;
    }

    .links-columns {
        gap: 32px;
    }

    .contact-map {
        min-height: 280px;
    }

    .contact-map iframe {
        min-height: 280px;
    }

    .mobile-fixed-bar {
        display: flex;
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        z-index: 999;
        background-color: var(--color-primary);
        box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.15);
        padding: 0;
        gap: 0;
    }

    .mobile-bar-btn {
        flex: 1;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 14px;
        padding: 26px 0;
        font-size: 22px;
        font-weight: 700;
        color: var(--color-text-white);
        text-align: center;
    }

    .mobile-bar-phone {
        background-color: var(--color-accent);
    }

    .mobile-bar-phone:active {
        background-color: var(--color-accent-hover);
    }

    .mobile-bar-line {
        background-color: #06c755;
    }

    .mobile-bar-line:active {
        background-color: #05a347;
    }

    .footer {
        padding-bottom: 70px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .section {
        padding: 60px 0;
    }

    .hero {
        min-height: 500px;
    }

    .hero-content {
        padding: 60px 16px;
    }

    .hero-title {
        font-size: 26px;
    }

    .btn-primary {
        padding: 14px 28px;
        font-size: 15px;
    }

    .contact-content {
        padding: 24px;
    }

    .contact-value.phone {
        font-size: 20px;
    }
}