/* 全局樣式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-blue: #4A90E2;
    --white: #FFFFFF;
    --dark-blue: #0A2540;
    --light-gray: #F5F7FA;
    --green: #10B981;
    --gold: #D4AF37;
    --text-gray: #6B7280;
    --border-gray: #E5E7EB;
}

body {
    font-family: 'Noto Sans TC', sans-serif;
    color: var(--dark-blue);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* 導航欄 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.nav-brand h1 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 2px;
}

.nav-subtitle {
    font-size: 0.7rem;
    color: var(--text-gray);
    font-weight: 300;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--dark-blue);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-blue);
    transition: width 0.3s ease;
}

.nav-menu a:hover {
    color: var(--primary-blue);
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--dark-blue);
    transition: all 0.3s ease;
}

/* 首頁英雄區 */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('hero-device.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    animation: glacierFlow 20s ease-in-out infinite;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.3) 0%, rgba(10, 37, 64, 0.4) 100%);
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(74, 144, 226, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(74, 144, 226, 0.15) 0%, transparent 50%);
}

@keyframes glacierFlow {
    0%, 100% {
        transform: translateY(0) scale(1);
    }
    50% {
        transform: translateY(-20px) scale(1.02);
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    padding: 40px 20px;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 10px;
}

.hero-subtitle {
    font-size: 1rem;
    color: var(--white);
    margin-bottom: 30px;
    letter-spacing: 2px;
}

.hero-tagline h3 {
    font-size: 2rem;
    color: var(--dark-blue);
    margin-bottom: 15px;
    font-weight: 500;
}

.hero-description {
    font-size: 1.3rem;
    color: var(--primary-blue);
    margin-bottom: 30px;
    font-weight: 500;
}

.hero-text {
    font-size: 1.1rem;
    color: var(--white);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
}

.feature-badge {
    background: var(--white);
    border: 2px solid var(--primary-blue);
    color: var(--primary-blue);
    padding: 10px 20px;
    border-radius: 25px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.feature-badge:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(74, 144, 226, 0.3);
}

.hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 30px;
}

.btn {
    padding: 15px 35px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-block;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--primary-blue);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(74, 144, 226, 0.3);
}

.btn-primary:hover {
    background: var(--dark-blue);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

.btn-secondary:hover {
    background: var(--primary-blue);
    color: var(--white);
}

.hero-disclaimer {
    font-size: 0.85rem;
    color: var(--white);
    font-style: italic;
}

/* 章節標題 */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark-blue);
    text-align: center;
    margin-bottom: 50px;
    position: relative;
    padding-bottom: 20px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--green));
    border-radius: 2px;
}

/* 關於我們 */
.about {
    padding: 100px 0;
    background: var(--white);
}

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

.about-intro {
    margin-bottom: 60px;
    text-align: center;
}

.about-intro h3 {
    font-size: 1.8rem;
    color: var(--primary-blue);
    margin-bottom: 20px;
}

.about-intro p {
    font-size: 1.1rem;
    color: var(--text-gray);
    line-height: 1.8;
}

.group-structure {
    margin-bottom: 60px;
}

.group-structure h3 {
    font-size: 1.5rem;
    color: var(--dark-blue);
    margin-bottom: 30px;
    text-align: center;
}

.structure-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.structure-card {
    background: var(--light-gray);
    padding: 30px;
    border-radius: 15px;
    border-left: 4px solid var(--primary-blue);
    transition: all 0.3s ease;
}

.structure-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.structure-card h4 {
    color: var(--primary-blue);
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.structure-card p {
    color: var(--text-gray);
    line-height: 1.6;
}

.tech-authorization {
    margin-bottom: 60px;
    text-align: center;
}

.tech-authorization h3 {
    font-size: 1.5rem;
    color: var(--dark-blue);
    margin-bottom: 20px;
}

.tech-authorization p {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: 30px;
}

.tech-authorization strong {
    color: var(--primary-blue);
}

.certificate-placeholder {
    display: flex;
    justify-content: center;
}

.certificate-card {
    background: var(--light-gray);
    padding: 40px;
    border-radius: 15px;
    border: 2px dashed var(--primary-blue);
    cursor: pointer;
    transition: all 0.3s ease;
    max-width: 300px;
}

.certificate-card:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(74, 144, 226, 0.2);
}

.certificate-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.health-philosophy {
    background: var(--light-gray);
    padding: 50px;
    border-radius: 20px;
}

.health-philosophy h3 {
    font-size: 1.5rem;
    color: var(--dark-blue);
    margin-bottom: 15px;
    text-align: center;
}

.philosophy-tagline {
    font-size: 1.3rem;
    color: var(--primary-blue);
    text-align: center;
    margin-bottom: 20px;
    font-weight: 500;
}

.health-philosophy > p {
    text-align: center;
    color: var(--text-gray);
    margin-bottom: 40px;
    font-size: 1.1rem;
}

.philosophy-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.philosophy-card {
    background: var(--white);
    padding: 30px;
    border-radius: 15px;
    border-top: 4px solid var(--green);
    transition: all 0.3s ease;
}

.philosophy-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.philosophy-card h4 {
    color: var(--primary-blue);
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.philosophy-card p {
    color: var(--text-gray);
    line-height: 1.8;
}

/* 服務與技術 */
.services {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--white) 0%, var(--light-gray) 100%);
}

.services-intro {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 60px;
}

.services-intro h3 {
    font-size: 1.8rem;
    color: var(--primary-blue);
    margin-bottom: 20px;
}

.services-intro p {
    font-size: 1.1rem;
    color: var(--text-gray);
    line-height: 1.8;
}

.core-services {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
    margin-bottom: 80px;
}

.service-card {
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border-top: 4px solid var(--primary-blue);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(74, 144, 226, 0.2);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.service-card h4 {
    font-size: 1.5rem;
    color: var(--primary-blue);
    margin-bottom: 15px;
}

.service-card > p {
    color: var(--text-gray);
    margin-bottom: 20px;
    line-height: 1.8;
}

.service-features {
    list-style: none;
    padding-left: 0;
}

.service-features li {
    padding: 10px 0;
    padding-left: 25px;
    position: relative;
    color: var(--text-gray);
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--green);
    font-weight: bold;
}

.tech-system {
    background: var(--white);
    padding: 50px;
    border-radius: 20px;
    margin-bottom: 60px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.tech-system h3 {
    font-size: 1.8rem;
    color: var(--primary-blue);
    margin-bottom: 20px;
    text-align: center;
}

.tech-system > p {
    text-align: center;
    color: var(--text-gray);
    margin-bottom: 40px;
    font-size: 1.1rem;
}

.tech-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.tech-feature {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.tech-icon {
    width: 30px;
    height: 30px;
    background: var(--green);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    flex-shrink: 0;
}

.tech-feature p {
    color: var(--text-gray);
    line-height: 1.6;
}

.tech-visualization {
    margin-top: 40px;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    border-radius: 15px;
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.1) 0%, rgba(16, 185, 129, 0.1) 100%);
}

.wave-animation {
    position: relative;
    width: 100%;
    height: 100%;
}

.wave {
    position: absolute;
    width: 200%;
    height: 100px;
    background: linear-gradient(90deg, transparent, rgba(74, 144, 226, 0.3), transparent);
    border-radius: 50%;
    animation: waveMove 3s ease-in-out infinite;
}

.wave:nth-child(1) {
    top: 20%;
    animation-delay: 0s;
}

.wave:nth-child(2) {
    top: 50%;
    animation-delay: 1s;
    opacity: 0.6;
}

.wave:nth-child(3) {
    top: 80%;
    animation-delay: 2s;
    opacity: 0.4;
}

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

.service-process {
    margin-top: 80px;
}

.service-process h3 {
    font-size: 1.8rem;
    color: var(--primary-blue);
    margin-bottom: 50px;
    text-align: center;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.process-step {
    background: var(--white);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    position: relative;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.process-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(74, 144, 226, 0.2);
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 20px;
}

.process-step h4 {
    color: var(--dark-blue);
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.process-step p {
    color: var(--text-gray);
    line-height: 1.6;
}

/* 全球佈局 */
.global {
    padding: 100px 0;
    background: var(--white);
}

.global-image-container {
    text-align: center;
    margin-top: 50px;
}

.global-image {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.global-intro {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 60px;
}

.global-intro h3 {
    font-size: 1.8rem;
    color: var(--primary-blue);
    margin-bottom: 20px;
}

.global-intro p {
    font-size: 1.1rem;
    color: var(--text-gray);
    line-height: 1.8;
}

.layout-overview {
    margin-bottom: 60px;
}

.layout-overview h3 {
    font-size: 1.5rem;
    color: var(--dark-blue);
    margin-bottom: 30px;
    text-align: center;
}

.layout-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.layout-card {
    background: var(--light-gray);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.layout-card:hover {
    border-color: var(--primary-blue);
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.layout-card h4 {
    font-size: 1.5rem;
    color: var(--primary-blue);
    margin-bottom: 15px;
}

.layout-card p {
    color: var(--text-gray);
    line-height: 1.6;
}

.development-steps {
    margin-top: 60px;
}

.development-steps h3 {
    font-size: 1.5rem;
    color: var(--dark-blue);
    margin-bottom: 40px;
    text-align: center;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--primary-blue), var(--green));
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
    padding-left: 40px;
}

.timeline-marker {
    position: absolute;
    left: -30px;
    top: 5px;
    width: 20px;
    height: 20px;
    background: var(--primary-blue);
    border-radius: 50%;
    border: 4px solid var(--white);
    box-shadow: 0 0 0 3px var(--primary-blue);
}

.timeline-content {
    background: var(--light-gray);
    padding: 25px;
    border-radius: 15px;
    transition: all 0.3s ease;
}

.timeline-content:hover {
    background: var(--white);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.timeline-content h4 {
    color: var(--primary-blue);
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.timeline-content p {
    color: var(--text-gray);
    line-height: 1.6;
}

.disclaimer-text {
    text-align: center;
    color: var(--text-gray);
    font-size: 0.9rem;
    font-style: italic;
    margin-top: 40px;
}

/* 專業團隊 */
.team {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--light-gray) 0%, var(--white) 100%);
}

.team-intro {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 60px;
    font-size: 1.1rem;
    color: var(--text-gray);
    line-height: 1.8;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.team-member {
    text-align: center;
    background: var(--white);
    padding: 40px 30px;
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.team-member:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(74, 144, 226, 0.2);
}

.member-avatar {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    position: relative;
}

.avatar-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-blue), var(--green));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2.5rem;
    font-weight: bold;
    box-shadow: 0 5px 20px rgba(74, 144, 226, 0.3);
}

.team-member h4 {
    font-size: 1.3rem;
    color: var(--dark-blue);
    margin-bottom: 10px;
}

.member-role {
    color: var(--primary-blue);
    font-weight: 500;
}

/* 聯絡我們 */
.contact {
    padding: 100px 0;
    background: var(--white);
}

.contact-intro {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 60px;
}

.contact-intro h3 {
    font-size: 1.8rem;
    color: var(--primary-blue);
    margin-bottom: 20px;
}

.contact-intro p {
    font-size: 1.1rem;
    color: var(--text-gray);
    line-height: 1.8;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-addresses h3 {
    font-size: 1.5rem;
    color: var(--dark-blue);
    margin-bottom: 30px;
}

.address-list {
    margin-bottom: 40px;
}

.address-item {
    background: var(--light-gray);
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 15px;
    border-left: 4px solid var(--primary-blue);
}

.address-item h4 {
    color: var(--primary-blue);
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.address-item p {
    color: var(--text-gray);
    line-height: 1.6;
}

.contact-methods h3 {
    font-size: 1.5rem;
    color: var(--dark-blue);
    margin-bottom: 20px;
}

.method-item {
    margin-bottom: 15px;
    color: var(--text-gray);
}

.method-item strong {
    color: var(--dark-blue);
}

.method-item a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: color 0.3s ease;
}

.method-item a:hover {
    color: var(--green);
    text-decoration: underline;
}

.contact-form-container {
    background: var(--light-gray);
    padding: 40px;
    border-radius: 20px;
}

.contact-form-container h3 {
    font-size: 1.5rem;
    color: var(--dark-blue);
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--dark-blue);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-gray);
    border-radius: 8px;
    font-family: 'Noto Sans TC', sans-serif;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.form-group textarea {
    resize: vertical;
}

/* 頁尾 */
.footer {
    background: var(--dark-blue);
    color: var(--white);
    padding: 50px 0 30px;
}

.footer-content {
    text-align: center;
}

.footer-brand h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--primary-blue);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 30px;
}

.footer-info p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 10px;
    font-size: 0.9rem;
}

.footer-disclaimer {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.6;
    max-width: 800px;
    margin: 20px auto 0;
}

/* 響應式設計 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 20px 0;
        gap: 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        padding: 15px 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    .hero-title {
        font-size: 1.8rem;
    }

    .hero-tagline h3 {
        font-size: 1.5rem;
    }

    .hero-description {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

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

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

    .structure-cards,
    .philosophy-cards,
    .layout-cards,
    .team-grid {
        grid-template-columns: 1fr;
    }

    .process-steps {
        grid-template-columns: 1fr;
    }

    .timeline {
        padding-left: 30px;
    }

    .timeline::before {
        left: 10px;
    }

    .timeline-marker {
        left: -20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.5rem;
    }

    .hero-subtitle {
        font-size: 0.8rem;
    }

    .hero-tagline h3 {
        font-size: 1.2rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .btn {
        padding: 12px 25px;
        font-size: 0.9rem;
    }
}

/* 平滑滾動 */
html {
    scroll-behavior: smooth;
}

/* 動畫效果 */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}