/**
 * JCI Sanxia - Christmas Handover 2025
 * jci-christmas.css
 * 
 * 效能優化策略：
 * 1. 關鍵 CSS 優先（Hero 區塊）
 * 2. 使用 CSS 變數減少重複
 * 3. 避免過度使用 box-shadow 和 filter
 * 4. 動畫使用 transform 和 opacity（GPU 加速）
 */

/* ===== CSS 變數 ===== */
:root {
    --jci-blue: #1a5f7a;
    --jci-blue-dark: #0d3d4d;
    --jci-gold: #d4af37;
    --jci-gold-light: #f4e4bc;
    --christmas-red: #c41e3a;
    --christmas-green: #165b33;
    --snow-white: #f8fafc;
    --warm-cream: #fffef5;
    --text-dark: #1a1a2e;
    --text-muted: #64748b;
    --transition-fast: 0.2s;
    --transition-normal: 0.3s;
    --transition-slow: 0.5s;
}

/* ===== 關鍵 CSS - 首屏渲染 ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--warm-cream);
    color: var(--text-dark);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Hero - 最高優先級 */
.hero-section {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    background: var(--jci-blue-dark);
}

    /* 當 header 為固定浮動時，調整 Hero 內容位置 */
    .hero-section .hero-content {
        padding-top: 0;
    }

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
}

.hero-content {
    position: relative;
    z-index: 5;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px;
}

.hero-title {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(1.8rem, 5vw, 3.5rem);
    font-weight: 700;
    color: white;
    margin-bottom: 15px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.8), 0 4px 20px rgba(0, 0, 0, 0.5);
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 0.2s;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.5rem);
    color: var(--jci-gold-light);
    margin-bottom: 20px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.7);
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 0.4s;
}

/* ===== 動畫關鍵幀 ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== 聖誕徽章 ===== */
.christmas-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, rgba(196, 30, 58, 0.95), rgba(212, 175, 55, 0.95));
    padding: 10px 25px;
    border-radius: 50px;
    margin-bottom: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
    opacity: 0;
    animation: fadeInDown 0.8s ease forwards;
}

    .christmas-badge span {
        color: white;
        font-weight: 600;
        font-size: 0.9rem;
        letter-spacing: 2px;
        text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    }

/* ===== 打字機效果 ===== */
.typed-container {
    font-size: clamp(1.2rem, 3vw, 2rem);
    color: white;
    margin-bottom: 25px;
    min-height: 50px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.8);
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 0.5s;
}

.typed-jci {
    color: var(--jci-gold);
    font-weight: 700;
}

.typing-cursor {
    display: inline-block;
    width: 3px;
    height: 1.2em;
    background: var(--jci-gold);
    margin-left: 2px;
    vertical-align: text-bottom;
    animation: blink 0.8s step-end infinite;
}

@keyframes blink {
    0%, 50% {
        opacity: 1;
    }

    51%, 100% {
        opacity: 0;
    }
}

/* ===== Hero 描述 ===== */
.hero-description {
    font-size: clamp(0.9rem, 2vw, 1.1rem);
    color: rgba(255, 255, 255, 0.95);
    max-width: 600px;
    line-height: 1.8;
    margin-bottom: 35px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.7);
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 0.6s;
}

/* ===== 倒數計時 ===== */
.countdown-container {
    display: flex;
    gap: 15px;
    margin-bottom: 35px;
    flex-wrap: wrap;
    justify-content: center;
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 0.7s;
}

.countdown-item {
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 12px;
    padding: 12px 18px;
    min-width: 70px;
    text-align: center;
}

.countdown-value {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--jci-gold);
    line-height: 1;
}

.countdown-label {
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 5px;
}

/* ===== CTA 按鈕 ===== */
.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, var(--jci-gold), #e6c65a);
    color: var(--text-dark);
    font-size: 1.1rem;
    font-weight: 700;
    padding: 16px 40px;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    text-decoration: none;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 0.8s;
}

    .hero-cta:hover {
        transform: translateY(-3px);
        box-shadow: 0 15px 40px rgba(212, 175, 55, 0.4);
        color: var(--text-dark);
        text-decoration: none;
    }

    .hero-cta svg {
        width: 20px;
        height: 20px;
        transition: transform var(--transition-fast);
    }

    .hero-cta:hover svg {
        transform: translateX(5px);
    }

/* ===== 雪花效果 ===== */
.snowflakes-container {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
    z-index: 2;
}

.snowflake {
    position: absolute;
    top: -20px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    will-change: transform;
    animation: snowfall linear forwards;
}

@keyframes snowfall {
    0% {
        transform: translateY(-20px) rotate(0deg);
        opacity: 1;
    }

    100% {
        transform: translateY(100vh) rotate(360deg);
        opacity: 0.3;
    }
}

/* ===== 聖誕燈串 ===== */
.christmas-lights {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 35px;
    display: flex;
    justify-content: center;
    gap: 25px;
    z-index: 10;
    overflow: hidden;
}

.light-bulb {
    width: 10px;
    height: 16px;
    border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
    will-change: opacity, transform;
    animation: glow 1.5s ease-in-out infinite alternate;
}

    .light-bulb:nth-child(4n+1) {
        background: #ff6b6b;
        box-shadow: 0 0 10px #ff6b6b;
    }

    .light-bulb:nth-child(4n+2) {
        background: #4ecdc4;
        box-shadow: 0 0 10px #4ecdc4;
        animation-delay: 0.2s;
    }

    .light-bulb:nth-child(4n+3) {
        background: #ffe66d;
        box-shadow: 0 0 10px #ffe66d;
        animation-delay: 0.4s;
    }

    .light-bulb:nth-child(4n) {
        background: #95e1d3;
        box-shadow: 0 0 10px #95e1d3;
        animation-delay: 0.6s;
    }

@keyframes glow {
    0% {
        opacity: 0.4;
        transform: scale(0.9);
    }

    100% {
        opacity: 1;
        transform: scale(1);
    }
}

/* ===== 滾動指示 ===== */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    animation: bounce 2s ease-in-out infinite;
}

    .scroll-indicator svg {
        width: 28px;
        height: 28px;
        fill: rgba(255, 255, 255, 0.7);
    }

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }

    40% {
        transform: translateX(-50%) translateY(-12px);
    }

    60% {
        transform: translateX(-50%) translateY(-6px);
    }
}

/* ===== 區塊共用樣式 ===== */
.section {
    padding: 80px 0;
    position: relative;
}

.section-header {
    margin-bottom: 50px;
}

.section-title {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--jci-blue-dark);
    margin-bottom: 10px;
    position: relative;
    display: inline-block;
}

    .section-title::after {
        content: '';
        position: absolute;
        bottom: -10px;
        left: 0;
        width: 60px;
        height: 4px;
        background: linear-gradient(90deg, var(--jci-gold), var(--christmas-red));
        border-radius: 2px;
    }

.section-subtitle {
    font-size: 1rem;
    color: var(--text-muted);
}

/* ===== 介紹區塊 ===== */
.intro-section {
    background: linear-gradient(180deg, var(--warm-cream) 0%, white 100%);
}

.intro-text {
    font-size: 1rem;
    line-height: 1.9;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.intro-title {
    color: var(--jci-blue-dark);
    font-weight: 700;
    margin-bottom: 20px;
    font-size: 1.25rem;
}

/* ===== 會長區塊 ===== */
.profile-section {
    background: white;
    position: relative;
    overflow: hidden;
}

    .profile-section::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 280px;
        background: linear-gradient(135deg, var(--jci-blue) 0%, var(--jci-blue-dark) 100%);
        clip-path: ellipse(80% 100% at 50% 0%);
    }

.president-card {
    position: relative;
    z-index: 1;
    text-align: center;
    padding-top: 50px;
}

.president-image-wrapper {
    position: relative;
    width: 200px;
    height: 200px;
    margin: 0 auto 20px;
}

    .president-image-wrapper::before {
        content: '';
        position: absolute;
        inset: -8px;
        border: 3px solid var(--jci-gold);
        border-radius: 50%;
        animation: rotateBorder 15s linear infinite;
    }

@keyframes rotateBorder {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.president-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    border: 4px solid white;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.25);
}

.president-name {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--jci-blue-dark);
    margin-bottom: 5px;
}

.president-title {
    color: var(--jci-gold);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 2px;
}

/* ===== 資料卡片 ===== */
.info-card {
    background: white;
    border-radius: 16px;
    padding: 35px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(212, 175, 55, 0.15);
    position: relative;
    overflow: hidden;
}

    .info-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: linear-gradient(90deg, var(--jci-blue), var(--jci-gold), var(--christmas-red));
    }

.info-card-title {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--jci-blue-dark);
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 10px;
}

    .info-card-title svg {
        width: 26px;
        height: 26px;
        fill: var(--jci-gold);
    }

.info-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

    .info-list li {
        padding: 10px 0;
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        display: flex;
        align-items: flex-start;
        gap: 12px;
        font-size: 0.95rem;
    }

        .info-list li:last-child {
            border-bottom: none;
        }

        .info-list li strong {
            color: var(--jci-blue);
            min-width: 90px;
            font-weight: 600;
            flex-shrink: 0;
        }

        .info-list li a {
            color: var(--jci-blue);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

            .info-list li a:hover {
                color: var(--christmas-red);
            }

/* ===== 組織圖區塊 ===== */
.org-chart-section {
    background: linear-gradient(180deg, #f1f5f9 0%, white 100%);
}

.org-chart-wrapper {
    background: white;
    border-radius: 16px;
    padding: 25px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.06);
}

    .org-chart-wrapper img {
        width: 100%;
        border-radius: 8px;
    }

/* ===== 四大機會區塊 ===== */
.opportunities-section {
    background: linear-gradient(135deg, var(--jci-blue-dark) 0%, var(--jci-blue) 100%);
    position: relative;
}

    .opportunities-section .section-title {
        color: white;
    }

        .opportunities-section .section-title::after {
            background: linear-gradient(90deg, var(--jci-gold), white);
        }

    .opportunities-section .section-subtitle {
        color: rgba(255, 255, 255, 0.8);
    }

.opportunity-card {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 16px;
    padding: 30px 22px;
    height: 100%;
    transition: transform var(--transition-normal), background var(--transition-normal);
    position: relative;
    overflow: hidden;
}

    .opportunity-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 4px;
        background: var(--jci-gold);
        transform: scaleX(0);
        transform-origin: left;
        transition: transform var(--transition-normal);
    }

    .opportunity-card:hover {
        transform: translateY(-8px);
        background: rgba(255, 255, 255, 0.12);
    }

        .opportunity-card:hover::before {
            transform: scaleX(1);
        }

.opportunity-icon {
    width: 55px;
    height: 55px;
    background: linear-gradient(135deg, var(--jci-gold), #e6c65a);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
}

    .opportunity-icon svg {
        width: 28px;
        height: 28px;
        fill: var(--text-dark);
    }

.opportunity-card h5 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.2rem;
    font-weight: 700;
    color: white;
    margin-bottom: 12px;
}

.opportunity-card p,
.opportunity-card ul {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.9rem;
    line-height: 1.7;
}

.opportunity-card ul {
    list-style: none;
    padding: 0;
}

    .opportunity-card ul li {
        padding: 5px 0;
        padding-left: 18px;
        position: relative;
    }

        .opportunity-card ul li::before {
            content: '✦';
            position: absolute;
            left: 0;
            color: var(--jci-gold);
            font-size: 0.7rem;
        }

/* ===== 入會條件區塊 ===== */
.join-section {
    background: white;
}

.join-card {
    background: linear-gradient(135deg, var(--warm-cream) 0%, white 100%);
    border-radius: 20px;
    padding: 45px;
    border: 2px solid rgba(212, 175, 55, 0.25);
    position: relative;
}

    .join-card::before {
        content: '🎄';
        position: absolute;
        top: 20px;
        right: 25px;
        font-size: 2.5rem;
        opacity: 0.15;
    }

.join-title {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.3rem;
    color: var(--jci-blue-dark);
    margin-bottom: 20px;
}

.join-requirements {
    list-style: none;
    padding: 0;
    margin-bottom: 25px;
}

    .join-requirements li {
        padding: 10px 0;
        padding-left: 32px;
        position: relative;
        font-size: 0.95rem;
    }

        .join-requirements li::before {
            content: '✓';
            position: absolute;
            left: 0;
            top: 10px;
            width: 22px;
            height: 22px;
            background: var(--christmas-green);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            font-weight: bold;
        }

.fee-info {
    background: rgba(26, 95, 122, 0.06);
    border-radius: 12px;
    padding: 22px;
    border-left: 4px solid var(--jci-blue);
}

    .fee-info p {
        margin-bottom: 8px;
        font-size: 0.9rem;
    }

        .fee-info p:last-child {
            margin-bottom: 0;
        }

/* ===== 聯絡區塊 ===== */
.contact-section {
    background: linear-gradient(180deg, #f8fafc 0%, var(--warm-cream) 100%);
}

.contact-card {
    background: white;
    border-radius: 16px;
    padding: 28px;
    text-align: center;
    box-shadow: 0 8px 35px rgba(0, 0, 0, 0.06);
    transition: transform var(--transition-normal), border-color var(--transition-normal);
    border: 1px solid transparent;
}

    .contact-card:hover {
        transform: translateY(-6px);
        border-color: var(--jci-gold);
    }

.contact-avatar {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--jci-blue), var(--jci-blue-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    font-size: 1.8rem;
}

.contact-card h5 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--jci-blue-dark);
    margin-bottom: 5px;
}

.contact-role {
    color: var(--jci-gold);
    font-weight: 600;
    font-size: 0.8rem;
    letter-spacing: 1px;
    margin-bottom: 15px;
}

.contact-phone {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(26, 95, 122, 0.08);
    padding: 10px 18px;
    border-radius: 50px;
    color: var(--jci-blue);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: background var(--transition-fast), color var(--transition-fast);
}

    .contact-phone:hover {
        background: var(--jci-blue);
        color: white;
    }

    .contact-phone svg {
        width: 16px;
        height: 16px;
        fill: currentColor;
    }

/* ===== CTA 區塊 ===== */
.cta-section {
    background: linear-gradient(135deg, var(--christmas-red) 0%, #a01830 100%);
    padding: 70px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-section h2 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(1.5rem, 4vw, 2.2rem);
    color: white;
    margin-bottom: 18px;
}

.cta-section p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
    margin-bottom: 28px;
    max-width: 550px;
    margin-left: auto;
    margin-right: auto;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: white;
    color: var(--christmas-red);
    font-size: 1.05rem;
    font-weight: 700;
    padding: 16px 40px;
    border-radius: 50px;
    text-decoration: none;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

    .cta-btn:hover {
        transform: scale(1.05);
        box-shadow: 0 12px 35px rgba(0, 0, 0, 0.25);
        color: var(--christmas-red);
        text-decoration: none;
    }

/* ===== AOS 動畫 ===== */
[data-aos] {
    opacity: 0;
    transition-property: opacity, transform;
}

    [data-aos].aos-animate {
        opacity: 1;
    }

[data-aos="fade-up"] {
    transform: translateY(30px);
}

    [data-aos="fade-up"].aos-animate {
        transform: translateY(0);
    }

[data-aos="fade-right"] {
    transform: translateX(-30px);
}

    [data-aos="fade-right"].aos-animate {
        transform: translateX(0);
    }

[data-aos="fade-left"] {
    transform: translateX(30px);
}

    [data-aos="fade-left"].aos-animate {
        transform: translateX(0);
    }

[data-aos="zoom-in"] {
    transform: scale(0.9);
}

    [data-aos="zoom-in"].aos-animate {
        transform: scale(1);
    }

/* ===== 響應式設計 ===== */

/* 平板 (max-width: 992px) */
@media (max-width: 992px) {
    .section {
        padding: 60px 0;
    }

    .info-card {
        padding: 28px;
    }

    .join-card {
        padding: 35px;
    }

    .opportunity-card {
        padding: 25px 18px;
    }

    /* 會長區塊調整 */
    .profile-section::before {
        height: 250px;
    }

    .president-card {
        padding-top: 40px;
    }

    .president-image-wrapper {
        width: 180px;
        height: 180px;
    }
}

/* 手機橫向 & 小平板 (max-width: 768px) */
@media (max-width: 768px) {
    .section {
        padding: 50px 0;
    }

    /* Hero 區塊 - 基本設定，JS 會動態調整 padding-top */
    .hero-section {
        min-height: 100vh;
        height: auto;
    }

    .hero-content {
        padding: 80px 20px 100px; /* 預設值，JS 會根據 header 高度覆蓋 padding-top */
        min-height: 100vh;
        justify-content: center;
    }

    .hero-title {
        font-size: 1.8rem;
        margin-bottom: 12px;
    }

    .hero-description {
        font-size: 0.9rem;
        margin-bottom: 25px;
        padding: 0 10px;
    }

    .christmas-badge {
        padding: 8px 18px;
        margin-bottom: 20px;
    }

        .christmas-badge span {
            font-size: 0.8rem;
            letter-spacing: 1px;
        }

    .typed-container {
        font-size: 1.1rem;
        margin-bottom: 20px;
    }

    .countdown-item {
        min-width: 60px;
        padding: 10px 14px;
    }

    .countdown-value {
        font-size: 1.5rem;
    }

    .countdown-label {
        font-size: 0.65rem;
    }

    .christmas-lights {
        gap: 15px;
        /* top 由 JS 動態設定以適應 header 高度 */
    }

    .light-bulb {
        width: 8px;
        height: 12px;
    }

    /* 會長區塊 - 重點修復 */
    .profile-section::before {
        height: 220px;
        clip-path: ellipse(90% 100% at 50% 0%);
    }

    .president-card {
        padding-top: 30px;
        padding-bottom: 10px;
    }

    .president-image-wrapper {
        width: 150px;
        height: 150px;
        margin-bottom: 25px;
    }

        .president-image-wrapper::before {
            inset: -6px;
            border-width: 2px;
        }

    .president-name {
        font-size: 1.4rem;
        margin-bottom: 8px;
    }

    .president-title {
        font-size: 0.85rem;
        letter-spacing: 1.5px;
    }

    /* 資料卡片 */
    .info-card {
        padding: 22px;
        margin-top: 20px;
    }

    .info-card-title {
        font-size: 1.2rem;
        margin-bottom: 20px;
    }

        .info-card-title svg {
            width: 22px;
            height: 22px;
        }

    .info-list li {
        flex-direction: column;
        gap: 4px;
        padding: 12px 0;
    }

        .info-list li strong {
            min-width: auto;
            font-size: 0.85rem;
        }

    /* 組織圖 */
    .org-chart-wrapper {
        padding: 15px;
    }

    /* 四大機會 */
    .opportunity-card {
        padding: 22px 18px;
    }

    .opportunity-icon {
        width: 48px;
        height: 48px;
    }

        .opportunity-icon svg {
            width: 24px;
            height: 24px;
        }

    .opportunity-card h5 {
        font-size: 1.1rem;
    }

    /* 入會區塊 */
    .join-card {
        padding: 28px;
    }

        .join-card::before {
            font-size: 2rem;
            top: 15px;
            right: 20px;
        }

    .join-title {
        font-size: 1.15rem;
    }

    .join-requirements li {
        font-size: 0.9rem;
        padding-left: 28px;
    }

        .join-requirements li::before {
            width: 20px;
            height: 20px;
            font-size: 0.7rem;
        }

    .fee-info {
        padding: 18px;
    }

        .fee-info p {
            font-size: 0.85rem;
        }

    /* 聯絡卡片 */
    .contact-card {
        padding: 24px 20px;
    }

    .contact-avatar {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }

    .contact-card h5 {
        font-size: 1.05rem;
    }

    .contact-phone {
        padding: 8px 16px;
        font-size: 0.85rem;
    }

    /* CTA 區塊 */
    .cta-section {
        padding: 50px 0;
    }

        .cta-section h2 {
            font-size: 1.4rem;
            padding: 0 15px;
        }

        .cta-section p {
            font-size: 0.9rem;
            padding: 0 20px;
        }

    .cta-btn {
        padding: 14px 30px;
        font-size: 0.95rem;
    }

    /* Section 標題 */
    .section-title {
        font-size: 1.5rem;
    }

    .section-subtitle {
        font-size: 0.9rem;
    }
}

/* 手機直向 (max-width: 576px) */
@media (max-width: 576px) {
    .section {
        padding: 40px 0;
    }

    /* Hero 區塊 - JS 會動態調整 padding-top */
    .hero-content {
        padding: 70px 15px 90px;
        min-height: 100vh;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .hero-description {
        font-size: 0.85rem;
        line-height: 1.7;
    }

    .typed-container {
        font-size: 1rem;
    }

    .countdown-container {
        gap: 8px;
    }

    .countdown-item {
        min-width: 52px;
        padding: 8px 10px;
    }

    .countdown-value {
        font-size: 1.3rem;
    }

    .hero-cta {
        padding: 12px 24px;
        font-size: 0.95rem;
        gap: 8px;
    }

        .hero-cta svg {
            width: 18px;
            height: 18px;
        }

    /* 會長區塊 - 確保文字不被遮擋 */
    .profile-section::before {
        height: 190px;
        clip-path: ellipse(100% 100% at 50% 0%);
    }

    .president-card {
        padding-top: 20px;
        padding-bottom: 15px;
    }

    .president-image-wrapper {
        width: 130px;
        height: 130px;
        margin-bottom: 20px;
    }

    .president-name {
        font-size: 1.25rem;
        margin-bottom: 6px;
    }

    .president-title {
        font-size: 0.8rem;
    }

    /* 資料卡片 */
    .info-card {
        padding: 18px;
        border-radius: 12px;
    }

    .info-card-title {
        font-size: 1.1rem;
        gap: 8px;
    }

    .info-list li {
        font-size: 0.9rem;
    }

    /* 四大機會 */
    .opportunity-card {
        padding: 20px 15px;
    }

        .opportunity-card h5 {
            font-size: 1rem;
        }

        .opportunity-card p,
        .opportunity-card ul {
            font-size: 0.85rem;
        }

    /* 入會區塊 */
    .join-card {
        padding: 22px 18px;
        border-radius: 16px;
    }

    .join-title {
        font-size: 1.1rem;
    }

    /* 聯絡卡片 */
    .contact-card {
        padding: 20px 16px;
    }

    .contact-avatar {
        width: 55px;
        height: 55px;
        font-size: 1.3rem;
        margin-bottom: 14px;
    }

    .contact-card h5 {
        font-size: 1rem;
    }

    .contact-role {
        font-size: 0.75rem;
        margin-bottom: 12px;
    }

    /* Section 標題 */
    .section-header {
        margin-bottom: 35px;
    }

    .section-title {
        font-size: 1.35rem;
    }

        .section-title::after {
            width: 50px;
            height: 3px;
        }

    .section-subtitle {
        font-size: 0.85rem;
    }

    /* 介紹區塊 */
    .intro-title {
        font-size: 1.1rem;
        margin-bottom: 15px;
    }

    .intro-text {
        font-size: 0.9rem;
        line-height: 1.8;
    }
}

/* 超小螢幕 (max-width: 400px) */
@media (max-width: 400px) {
    .hero-title {
        font-size: 1.35rem;
    }

    .christmas-badge {
        padding: 6px 14px;
    }

        .christmas-badge span {
            font-size: 0.7rem;
        }

    .countdown-item {
        min-width: 48px;
        padding: 6px 8px;
    }

    .countdown-value {
        font-size: 1.15rem;
    }

    .countdown-label {
        font-size: 0.6rem;
    }

    /* 會長區塊 - 超小螢幕 */
    .profile-section::before {
        height: 170px;
    }

    .president-card {
        padding-top: 15px;
    }

    .president-image-wrapper {
        width: 110px;
        height: 110px;
        margin-bottom: 18px;
    }

    .president-name {
        font-size: 1.15rem;
    }

    .president-title {
        font-size: 0.75rem;
    }

    .info-card {
        padding: 15px;
    }

    .contact-card {
        padding: 18px 14px;
    }
}

/* ===== 減少動畫（無障礙） ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .snowflake,
    .light-bulb {
        animation: none !important;
    }
}

/* ===== 列印樣式 ===== */
@media print {
    .hero-section,
    .snowflakes-container,
    .christmas-lights,
    .scroll-indicator,
    .cta-section {
        display: none !important;
    }

    .section {
        padding: 20px 0;
        page-break-inside: avoid;
    }
}