/* 基本樣式 */
:root {
    --primary-color: #d4a0a9;
    --secondary-color: #faf6f3;
    --accent-color: #e2b5bd;
    --light-color: #faf6f3;
    --dark-color: #5c5c5c;
    --gray-color: #8c8c8c;
    --white-color: #ffffff;
    --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    --border-radius: 8px;
    --border-radius-large: 16px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Noto Sans TC', sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--secondary-color);
    background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23d4a0a9' fill-opacity='0.03' fill-rule='evenodd'/%3E%3C/svg%3E");
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    text-align: center;
    font-size: 0.95rem;
}

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

.btn-primary:hover {
    background-color: var(--accent-color);
    transform: translateY(-3px);
    box-shadow: var(--box-shadow);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: var(--white-color);
    transform: translateY(-3px);
    box-shadow: var(--box-shadow);
}

.section-title {
    font-size: 2.2rem;
    margin-bottom: 1rem;
    text-align: center;
    color: var(--dark-color);
    position: relative;
    padding-bottom: 15px;
    font-weight: 700;
}

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

.section-desc {
    text-align: center;
    color: var(--gray-color);
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.center-btn {
    text-align: center;
    margin-top: 3rem;
}

/* 導航欄 */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--white-color);
    box-shadow: var(--box-shadow);
    z-index: 1000;
    padding: 15px 0;
}

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

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

.logo-img {
    height: 40px;
    margin-right: 10px;
}

.logo h1 {
    font-size: 1.5rem;
    color: var(--dark-color);
    margin: 0;
}

nav ul {
    display: flex;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    font-weight: 500;
    position: relative;
    color: var(--dark-color);
}

nav ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    bottom: -5px;
    left: 0;
    transition: var(--transition);
}

nav ul li a:hover {
    color: var(--primary-color);
}

nav ul li a:hover::after {
    width: 100%;
}

.auth-buttons {
    display: flex;
    align-items: center;
}

.login-btn, .signup-btn {
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 500;
    margin-left: 10px;
    transition: var(--transition);
}

.login-btn {
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    background-color: transparent;
}

.signup-btn {
    background-color: var(--primary-color);
    color: var(--white-color);
}

.login-btn:hover, .signup-btn:hover {
    transform: translateY(-2px);
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* 英雄區域 */
.hero {
    padding: 150px 0 100px;
    background-color: var(--secondary-color);
    overflow: hidden;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
}

.hero-text {
    flex: 1;
}

.hero-text h1 {
    font-size: 2.8rem;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--dark-color);
    font-weight: 700;
}

.hero-text p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    color: var(--gray-color);
    max-width: 550px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

.hero-image {
    flex: 1;
    border-radius: var(--border-radius-large);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

/* 為什麼選擇我們 */
.why-us {
    padding: 100px 0;
    background-color: var(--white-color);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.feature-card {
    padding: 40px 25px;
    border-radius: var(--border-radius);
    background-color: var(--secondary-color);
    text-align: center;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--box-shadow);
}

.feature-icon {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    width: 70px;
    height: 70px;
    background-color: var(--white-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.05);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.feature-card p {
    color: var(--gray-color);
}

/* 熱門課程 */
.courses {
    padding: 100px 0;
    background-color: var(--secondary-color);
}

.course-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 10px;
}

.tab-btn {
    background: none;
    border: none;
    padding: 10px 20px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    color: var(--gray-color);
    transition: var(--transition);
    border-radius: 50px;
}

.tab-btn.active, .tab-btn:hover {
    background-color: var(--primary-color);
    color: var(--white-color);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.courses-grid .course-card {
    margin-bottom: 20px;
}

.course-card {
    background-color: var(--white-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.course-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--box-shadow);
}

.course-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.course-card:hover .course-image img {
    transform: scale(1.1);
}

.course-category {
    position: absolute;
    top: 15px;
    left: 15px;
    padding: 5px 15px;
    background-color: var(--primary-color);
    color: var(--white-color);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 500;
    opacity: 0.9;
}

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 50px;
    background-color: var(--white-color);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    border: none;
    cursor: pointer;
    opacity: 0;
    transition: var(--transition);
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.2);
}

.play-btn i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.course-card:hover .play-btn {
    opacity: 1;
}

.course-content {
    padding: 25px;
}

.course-content h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--dark-color);
    line-height: 1.4;
}

.course-content p {
    color: var(--gray-color);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.course-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    padding-top: 15px;
}

.course-price {
    font-weight: 700;
    color: var(--primary-color);
}

.course-rating {
    display: flex;
    align-items: center;
    color: var(--gray-color);
}

.course-rating i {
    color: #ffb100;
    margin-right: 5px;
}

/* 專業講師團隊 */
.instructors {
    padding: 100px 0;
    background-color: var(--white-color);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

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

.instructor-card {
    background-color: var(--white-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    text-align: center;
    padding-bottom: 25px;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.instructor-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--box-shadow);
}

.instructor-image {
    width: 100%;
    height: 270px;
    overflow: hidden;
}

.instructor-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.instructor-card:hover .instructor-image img {
    transform: scale(1.1);
}

.instructor-card h3 {
    font-size: 1.3rem;
    margin: 20px 0 10px;
    color: var(--dark-color);
}

.instructor-title {
    color: var(--primary-color);
    font-weight: 500;
    font-size: 0.95rem;
    margin-bottom: 10px;
}

.instructor-desc {
    padding: 0 20px;
    margin-bottom: 15px;
    color: var(--gray-color);
    font-size: 0.9rem;
}

.social-icons {
    display: flex;
    justify-content: center;
    gap: 10px;
}

.social-icons a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background-color: rgba(212, 160, 169, 0.1);
    color: var(--primary-color);
    transition: var(--transition);
}

.social-icons a:hover {
    background-color: var(--primary-color);
    color: var(--white-color);
}

/* 課程收費方案 */
.pricing {
    padding: 100px 0;
    background-color: var(--secondary-color);
}

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

.pricing-card {
    background-color: var(--white-color);
    border-radius: var(--border-radius);
    padding: 40px 30px;
    text-align: center;
    position: relative;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.pricing-card.featured {
    transform: scale(1.05);
    border: 2px solid var(--primary-color);
    box-shadow: var(--box-shadow);
    z-index: 1;
}

.pricing-card:hover {
    transform: translateY(-10px);
}

.pricing-card.featured:hover {
    transform: translateY(-10px) scale(1.05);
}

.featured-tag {
    position: absolute;
    top: 0;
    right: 30px;
    background-color: var(--primary-color);
    color: var(--white-color);
    padding: 5px 15px;
    border-radius: 0 0 8px 8px;
    font-size: 0.8rem;
    font-weight: 500;
}

.pricing-title {
    font-size: 1.5rem;
    color: var(--dark-color);
    margin-bottom: 20px;
}

.pricing-price {
    margin-bottom: 30px;
}

.pricing-price .currency {
    font-size: 1.2rem;
    vertical-align: top;
    margin-right: 5px;
    color: var(--gray-color);
}

.pricing-price .amount {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.pricing-price .period {
    font-size: 1rem;
    color: var(--gray-color);
}

.pricing-features {
    margin-bottom: 30px;
    text-align: left;
}

.pricing-features li {
    margin-bottom: 15px;
    padding-left: 25px;
    position: relative;
}

.pricing-features li i {
    position: absolute;
    left: 0;
    top: 4px;
}

.feature-available {
    color: var(--dark-color);
}

.feature-available i {
    color: var(--primary-color);
}

.feature-unavailable {
    color: var(--gray-color);
    text-decoration: line-through;
}

.feature-unavailable i {
    color: var(--gray-color);
}

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

.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.about-image {
    flex: 1;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.about-text {
    flex: 1;
}

.about-text .section-title {
    text-align: left;
}

.about-text .section-title::after {
    left: 0;
    transform: none;
}

.about-text p {
    margin-bottom: 20px;
    color: var(--gray-color);
}

.about-stats {
    margin-top: 30px;
}

.stat {
    display: inline-block;
    margin-right: 40px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    display: block;
    line-height: 1.2;
}

.stat-desc {
    font-size: 1rem;
    color: var(--gray-color);
}

/* 頁腳 */
footer {
    background-color: var(--dark-color);
    color: var(--white-color);
    padding: 80px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-about h3, 
.footer-links h3, 
.footer-contact h3, 
.footer-newsletter h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-about h3::after, 
.footer-links h3::after, 
.footer-contact h3::after, 
.footer-newsletter h3::after {
    content: '';
    position: absolute;
    width: 40px;
    height: 2px;
    background-color: var(--primary-color);
    bottom: 0;
    left: 0;
}

.footer-about p, 
.footer-contact p, 
.footer-newsletter p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 15px;
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links ul li a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-links ul li a:hover {
    color: var(--white-color);
    padding-left: 5px;
}

.footer-contact p i {
    margin-right: 10px;
    color: var(--primary-color);
}

.newsletter-form {
    display: flex;
    margin-top: 15px;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 15px;
    border: none;
    border-radius: 50px 0 0 50px;
    outline: none;
}

.newsletter-form button {
    padding: 0 20px;
    background-color: var(--primary-color);
    color: var(--white-color);
    border: none;
    border-radius: 0 50px 50px 0;
    cursor: pointer;
    transition: var(--transition);
}

.newsletter-form button:hover {
    background-color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

/* 響應式設計 */
@media (max-width: 992px) {
    .hero-content {
        flex-direction: column;
    }
    
    .about-content {
        flex-direction: column;
    }
    
    .pricing-card.featured {
        transform: scale(1);
    }
    
    .pricing-card.featured:hover {
        transform: translateY(-10px);
    }
    
    .courses-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    header .container {
        flex-wrap: wrap;
    }
    
    nav {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: var(--white-color);
        padding: 20px 0;
        box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
        transform: translateY(-150%);
        transition: var(--transition);
        z-index: 999;
    }
    
    nav.active {
        transform: translateY(0);
    }
    
    nav ul {
        flex-direction: column;
        align-items: center;
    }
    
    nav ul li {
        margin: 10px 0;
    }
    
    .auth-buttons {
        margin-left: auto;
    }
    
    .mobile-menu-btn {
        display: block;
        order: 3;
        margin-left: 15px;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
}

@media (max-width: 576px) {
    .hero-text h1 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 10px;
    }
    
    .auth-buttons {
        margin-top: 10px;
        order: 4;
        width: 100%;
        justify-content: center;
    }
    
    .logo {
        order: 1;
    }
    
    .mobile-menu-btn {
        order: 2;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .courses-grid {
        grid-template-columns: 1fr;
    }
}