/* 標竿品牌色彩變數 */
:root {
    --color-main-yellow-orange: #FFCC00; /* M25 Y100 */
    --color-main-dark-grey: #666666; /* K60 */
    --color-aux-orange: #FF9900; /* M50 Y100 */
    --color-aux-teal: #00A8A8; /* C80 Y40 */
}
@media (min-width: 1200px) {
    .banner {
        position: relative;
        max-height: 480px; /* 限制高度為 480px */
        background-color: white;
        display: flex; /* 使用 flexbox 居中內容 */
        align-items: center; /* 垂直居中 */
        justify-content: center; /* 水平居中 */
    }

    .banner img {
        height: 480px; 
        width: auto; /* 保持圖片比例 */
        object-fit: cover; /* 裁剪圖片以填滿容器 */
    }
    .banner::after {
        content: "";
        position: absolute;
        right: 0;
        bottom: 0;
        width: 680px; 
        height: 680px;
        background-image: url("../backImg/background03.png");
        background-position: right bottom;
        background-repeat: no-repeat;
        background-size:  contain;
        z-index: 99; 
    }


    .banner::before {
        content: "";
        position: absolute;
        left: 0;
        top: 0;
        width: 680px; 
        height: 680px; 
        background-image: url("../backImg/background05.png");
        background-position: left top;
        background-repeat: no-repeat;
        background-size: contain;
    }
   
}

body {
    font-family: 'Noto Sans TC', sans-serif;
    margin: 0;
    padding: 0px;
    background-color: #000000;
    position: relative;
}

.title {
    color: white;
    letter-spacing: 7px;
    font-size: 2.2em;
    margin: 30px;
}

h1 {
    font-size: 1.5em;
    text-align: center;
    letter-spacing: 1px;
    font-weight: 600;
}

h3 {
    text-align: center;
    margin-top: 40px;
    margin-bottom: 25px;
    font-weight: 600;
    color: #333;
}

h5 {
    font-weight: 550;
    text-align: center;
}

.date {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: small;
    color: gray;
}

.about-p {
    color: #ffffff;
    /* text-align: center; */
    font-size: 1.2em;
    letter-spacing: 3px;
    margin-left: 30px;
    margin-right: 30px;
}


.leaderbtn{
    margin-top: 50px;
    display: flex;
    align-items: center;
    justify-content: space-around;
    position: relative;
}

.cta-container{
    text-align: center;
    padding-bottom: 100px;
}
.cta-section {
    text-align: center;
    padding: 15px 50px;
    margin: 60px auto;
    max-width: 90%;
    position: relative;
    background-color: rgb(255, 255, 255);
    border-radius: 52px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    z-index: 1;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
  ;
    background-size: cover;
    background-position: center;
    opacity: 0.18;
    z-index: -2;
}

.cta-section::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,204,0,0.1) 0%, rgba(255,255,255,0) 70%);
    z-index: -1;
}

.cta-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}


.cta-section h3 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 25px;
    background: linear-gradient(80deg, var(--color-main-yellow-orange), var(--color-aux-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    position: relative;
    display: inline-block;
}

.leadership-highlight {
    display: flex;
    justify-content: center;
    margin: 30px auto;
    gap: 50px;
    flex-wrap: wrap;
}

.leadership-point {
    flex: 1;
    min-width: 200px;
    max-width: 250px;
    text-align: center;
    padding: 20px;
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

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

.leadership-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--color-aux-orange);
}

.leadership-title {
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--color-main-dark-grey);
}

.leadership-desc {
    color: #555;
    font-size: 0.9rem;
    line-height: 1.5;
}

/* 立即報名按鈕 */
.btn-primary {
    background-color: var(--color-main-yellow-orange);
    color: #333;
    font-weight: bold;
    border: none;
    padding: 12px 30px;
    font-size: 18px;
    border-radius: 30px;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(255, 204, 0, 0.3);
    animation: pulse 2s infinite;
}

.btn-primary:hover {
    background-color: var(--color-aux-orange);
    transform: translateY(-3px);
    animation: none;
    box-shadow: 0 0 25px #f0de6a;
}

@keyframes breathe {
    0%, 100% {
        opacity: 0.3;
        transform: scale(0.95);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.05);
    }
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(240, 222, 106, 0.7);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(240, 222, 106, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(240, 222, 106, 0);
    }
}

.tabs {
  margin-top: 18px;
}


.history-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #f8f8f8 0%, #ffffff 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.history-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--color-main-yellow-orange), var(--color-aux-orange));
}

.history-section h3 {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    margin-bottom: 30px;
    position: relative;
    display: inline-block;
    color: var(--color-main-dark-grey);
    text-transform: uppercase;
}

.history-section h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--color-aux-orange);
}

.history-section p {
    font-size: 1.1rem;
    color: #555;
    max-width: 600px;
    margin: 0 auto 40px;
}

.year-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 18px;
    margin-top: 30px;
    padding: 0 20px;
    position: relative;
}

.year-buttons::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 10%;
    right: 10%;
    height: 3px;
    background: linear-gradient(90deg, 
        rgba(255,204,0,0), 
        rgba(255,204,0,0.5), 
        rgba(255,204,0,0));
    z-index: 0;
}

.year-btn {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: white;
    color: var(--color-main-dark-grey);
    border: 2px solid #eaeaea;
    border-radius: 50%;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    text-decoration: none;
    position: relative;
    z-index: 1;
    box-shadow: 0 3px 10px rgba(0,0,0,0.05);
}

.year-btn:hover {
    background: linear-gradient(135deg, var(--color-main-yellow-orange), var(--color-aux-orange));
    color: white;
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 10px 20px rgba(255, 153, 0, 0.2);
    border-color: transparent;
}

.year-btn::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, var(--color-main-yellow-orange), var(--color-aux-orange));
    border-radius: 50%;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.year-btn:hover::after {
    opacity: 1;
}
.cta-button{
    margin-right:       0 !important;
}
.black{
    background-color: black;
    padding: 50px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.black::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 5px;
        background: linear-gradient(90deg, var(--color-main-yellow-orange), var(--color-aux-orange));
    }