/* ========================================
   高雄國際航空站檔案應用專區 - 共用樣式
   ======================================== */

/* ========== CSS 變數 ========== */
:root {
    --imperial-gold: #C9A227;
    --deep-burgundy: #722F37;
    --jade-green: #00A86B;
    --ink-black: #1a1a1a;
    --warm-ivory: #FFFEF2;
    --silk-cream: #F5F3E7;
    --antique-bronze: #8B6914;
    --cloud-white: #FAFAFA;
    --mist-gray: #E8E6E0;
    --navy-blue: #1B365D;
    --royal-blue: #1E3A5F;
    --alert-red: #C41E3A;
    --vermillion: #E34234;
    --transition-smooth: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ========== 基礎重置 ========== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans TC', sans-serif;
    background-color: var(--warm-ivory);
    color: var(--ink-black);
    line-height: 1.8;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* ========== 頁首 Header ========== */
header {
    background: linear-gradient(180deg, var(--ink-black) 0%, #2a2a2a 100%);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 3px solid var(--imperial-gold);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--imperial-gold) 0%, var(--antique-bronze) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon i {
    color: var(--ink-black);
    font-size: 1.3rem;
    transform: rotate(-45deg);
}

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

.logo-title {
    font-family: 'Noto Serif TC', serif;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--cloud-white);
    letter-spacing: 0.1em;
}

.logo-subtitle {
    font-size: 0.75rem;
    color: var(--imperial-gold);
    letter-spacing: 0.15em;
}

/* ========== 導覽列 Navigation ========== */
.nav-menu {
    display: flex;
    gap: 0.5rem;
    list-style: none;
}

.nav-link {
    font-family: 'Noto Serif TC', serif;
    font-weight: 500;
    color: var(--mist-gray);
    padding: 0.5rem 1rem;
    transition: var(--transition-smooth);
    letter-spacing: 0.05em;
    font-size: 0.9rem;
}

.nav-link:hover,
.nav-link.active {
    color: var(--imperial-gold);
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    color: var(--cloud-white);
    cursor: pointer;
    padding: 0.5rem;
    background: none;
    border: none;
}

/* 手機版導覽選單 */
.mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 9998;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
}

.mobile-nav.active {
    display: flex;
    opacity: 1;
    visibility: visible;
}

.mobile-nav a {
    font-family: 'Noto Serif TC', serif;
    font-size: 1.5rem;
    color: var(--cloud-white);
    padding: 1rem 2rem;
    letter-spacing: 0.15em;
    transition: var(--transition-smooth);
}

.mobile-nav a:hover,
.mobile-nav a.active {
    color: var(--imperial-gold);
}

.mobile-nav-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 2rem;
    color: var(--cloud-white);
    cursor: pointer;
    background: none;
    border: none;
    transition: var(--transition-smooth);
}

.mobile-nav-close:hover {
    color: var(--imperial-gold);
    transform: rotate(90deg);
}

/* ========== 麵包屑 Breadcrumbs ========== */
.breadcrumbs-bar {
    background: var(--silk-cream);
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--mist-gray);
}

.breadcrumbs {
    max-width: 1400px;
    margin: 0 auto;
    font-size: 0.9rem;
    color: #666;
}

.breadcrumbs a:hover {
    color: var(--deep-burgundy);
}

.breadcrumbs i {
    color: var(--imperial-gold);
    margin-right: 0.5rem;
}

/* ========== 區塊標題 Section Header ========== */
.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-number {
    font-family: 'Noto Serif TC', serif;
    font-size: 2.5rem;
    font-weight: 100;
    color: var(--imperial-gold);
    opacity: 0.5;
    line-height: 1;
}

.section-title {
    font-family: 'Noto Serif TC', serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--ink-black);
    letter-spacing: 0.15em;
    margin: 0.5rem 0;
}

.section-title-en {
    font-size: 0.85rem;
    color: #888;
    letter-spacing: 0.2em;
}

.section-divider {
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--imperial-gold), transparent);
    margin: 1rem auto;
}

.section-intro {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    font-size: 1rem;
    color: #555;
    line-height: 1.9;
}

/* ========== 頁尾 Footer ========== */
footer {
    background: var(--ink-black);
    color: var(--mist-gray);
    border-top: 3px solid var(--imperial-gold);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 3rem 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.footer-section h3 {
    font-family: 'Noto Serif TC', serif;
    font-size: 1rem;
    margin-bottom: 1.5rem;
    color: var(--imperial-gold);
    letter-spacing: 0.1em;
}

.footer-info p {
    margin-bottom: 0.6rem;
    font-size: 0.9rem;
}

.footer-links a {
    display: block;
    margin-bottom: 0.6rem;
    font-size: 0.9rem;
    opacity: 0.8;
    transition: var(--transition-smooth);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--imperial-gold);
}

.copyright {
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.5rem 2rem;
    font-size: 0.85rem;
    color: #666;
}

/* ========== 回到頂部按鈕 ========== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--imperial-gold), var(--antique-bronze));
    color: var(--ink-black);
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
    z-index: 999;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

/* ========== 卡片網格 ========== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

/* ========== 資訊卡片 ========== */
.info-card {
    background: var(--cloud-white);
    border: 1px solid var(--mist-gray);
    padding: 2rem;
    transition: var(--transition-smooth);
    position: relative;
}

.info-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--imperial-gold);
    transform: scaleY(0);
    transition: var(--transition-smooth);
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
}

.info-card:hover::before {
    transform: scaleY(1);
}

.info-card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--deep-burgundy), var(--ink-black));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.info-card-icon i {
    font-size: 1.5rem;
    color: var(--imperial-gold);
}

.info-card-title {
    font-family: 'Noto Serif TC', serif;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--ink-black);
    margin-bottom: 0.5rem;
    letter-spacing: 0.05em;
}

.info-card-subtitle {
    font-size: 0.8rem;
    color: var(--imperial-gold);
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.info-card-desc {
    font-size: 0.95rem;
    color: #555;
    line-height: 1.8;
}

/* ========== 下載區樣式 ========== */
.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.download-card {
    background: var(--cloud-white);
    border: 1px solid var(--mist-gray);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    transition: var(--transition-smooth);
}

.download-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    border-color: var(--imperial-gold);
}

.download-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--deep-burgundy), var(--ink-black));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.download-icon i {
    font-size: 1.5rem;
    color: var(--imperial-gold);
}

.download-info h4 {
    font-family: 'Noto Serif TC', serif;
    font-size: 1rem;
    font-weight: 600;
    color: var(--ink-black);
    margin-bottom: 0.3rem;
}

.download-info p {
    font-size: 0.85rem;
    color: #888;
}

/* 下載列表 */
.download-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin: 2rem 0;
}

.download-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--cloud-white);
    border: 1px solid var(--mist-gray);
    transition: var(--transition-smooth);
}

.download-item:hover {
    border-color: var(--imperial-gold);
    transform: translateX(5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.download-item .file-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--deep-burgundy), var(--ink-black));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.download-item .file-icon i {
    font-size: 1.3rem;
    color: var(--imperial-gold);
}

.download-item .file-info {
    flex: 1;
}

.download-item .file-name {
    font-family: 'Noto Serif TC', serif;
    font-size: 1rem;
    font-weight: 600;
    color: var(--ink-black);
    margin-bottom: 0.3rem;
}

.download-item .file-meta {
    font-size: 0.85rem;
    color: #888;
}

.download-item .download-btn {
    padding: 0.6rem 1.2rem;
    background: var(--imperial-gold);
    color: var(--ink-black);
    font-weight: 600;
    font-size: 0.85rem;
    border: none;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.download-item .download-btn:hover {
    background: var(--deep-burgundy);
    color: var(--cloud-white);
}

/* ========== 影片播放區樣式 ========== */
.video-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0 3rem;
}

.video-item {
    background: var(--cloud-white);
    border: 1px solid var(--mist-gray);
    overflow: hidden;
    transition: var(--transition-smooth);
}

.video-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    background: var(--ink-black);
}

.video-wrapper iframe,
.video-wrapper video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.video-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--deep-burgundy), var(--ink-black));
    color: var(--imperial-gold);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.video-placeholder:hover {
    background: linear-gradient(135deg, var(--ink-black), var(--deep-burgundy));
}

.video-placeholder i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.8;
}

.video-placeholder span {
    font-size: 0.9rem;
    letter-spacing: 0.1em;
}

.video-info {
    padding: 1.5rem;
}

.video-title {
    font-family: 'Noto Serif TC', serif;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--ink-black);
    margin-bottom: 0.5rem;
}

.video-duration {
    font-size: 0.85rem;
    color: var(--imperial-gold);
    margin-bottom: 0.8rem;
}

.video-desc {
    font-size: 0.9rem;
    color: #666;
    line-height: 1.7;
}

/* ========== 圖片展示區樣式 ========== */
.photo-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.photo-item {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--mist-gray);
    cursor: pointer;
}

.photo-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.photo-item:hover img {
    transform: scale(1.05);
}

.photo-item .photo-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    padding: 1rem;
    color: var(--cloud-white);
    transform: translateY(100%);
    transition: var(--transition-smooth);
}

.photo-item:hover .photo-overlay {
    transform: translateY(0);
}

.photo-placeholder {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--silk-cream), var(--mist-gray));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--deep-burgundy);
    font-size: 3rem;
    opacity: 0.5;
}

/* ========== Lightbox 燈箱效果 ========== */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.lightbox.active {
    display: flex;
}

.lightbox img {
    max-width: 90%;
    max-height: 85vh;
    object-fit: contain;
}

.lightbox-close {
    position: absolute;
    top: 1.5rem;
    right: 2rem;
    font-size: 2.5rem;
    color: var(--cloud-white);
    cursor: pointer;
    transition: var(--transition-smooth);
    background: none;
    border: none;
}

.lightbox-close:hover {
    color: var(--imperial-gold);
    transform: rotate(90deg);
}

.lightbox-caption {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--cloud-white);
    font-size: 1rem;
    text-align: center;
    max-width: 80%;
}

/* ========== 響應式設計 ========== */
@media (max-width: 1024px) {
    .card-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

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

    .header-container {
        padding: 0.8rem 1rem;
    }

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

    .logo-subtitle {
        font-size: 0.65rem;
    }

    .card-grid {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 1.6rem;
    }

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

    .download-grid {
        grid-template-columns: 1fr;
    }

    .video-gallery {
        grid-template-columns: 1fr;
    }

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

    .back-to-top {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 45px;
        height: 45px;
    }

    .footer-content {
        padding: 2rem 1rem;
    }
}

@media (max-width: 480px) {
    .photo-gallery {
        grid-template-columns: 1fr;
    }

    .logo-icon {
        width: 40px;
        height: 40px;
    }

    .logo-icon i {
        font-size: 1rem;
    }
}


/* ========== 頁面共用樣式（從內嵌樣式中提取） ========== */

.page-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
        }

.page-hero-badge-line {
    width: 50px;
    height: 1px;
    background: var(--imperial-gold);
        }

.page-hero-badge-text {
    font-family: 'Noto Serif TC', serif;
    color: var(--imperial-gold);
    font-size: 0.85rem;
    letter-spacing: 0.3em;
        }

.page-hero-subtitle {
    font-size: 1rem;
    color: rgba(255,255,255,0.7);
    letter-spacing: 0.15em;
        }

main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 4rem 2rem;
        }

/* ========== 稀客機型卡片 ========== */
.aircraft-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 2rem;
}

.aircraft-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    border: 1px solid var(--mist-gray);
}

.aircraft-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.15);
    border-color: var(--imperial-gold);
}

.aircraft-card-image {
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, #1B365D 0%, #2a4a7f 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.aircraft-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.aircraft-card:hover .aircraft-card-image img {
    transform: scale(1.08);
}

.aircraft-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.3);
    font-size: 3rem;
}

.aircraft-card-body {
    padding: 1.5rem;
}

.aircraft-badge {
    display: inline-block;
    background: var(--imperial-gold);
    color: var(--ink-black);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.2rem 0.8rem;
    border-radius: 1rem;
    margin-bottom: 0.8rem;
    letter-spacing: 0.05em;
}

.aircraft-card-title {
    font-family: 'Noto Serif TC', serif;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--ink-black);
    margin-bottom: 0.3rem;
}

.aircraft-card-maker {
    font-size: 0.85rem;
    color: var(--antique-bronze);
    margin-bottom: 0.8rem;
}

.aircraft-card-desc {
    font-size: 0.9rem;
    line-height: 1.7;
    color: #555;
    margin-bottom: 1rem;
}

.aircraft-specs {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.aircraft-specs span {
    font-size: 0.8rem;
    color: var(--navy-blue);
    background: rgba(27, 54, 93, 0.08);
    padding: 0.3rem 0.8rem;
    border-radius: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 768px) {
    .aircraft-gallery {
        grid-template-columns: 1fr;
    }
    .visitor-nav {
        gap: 0.5rem !important;
    }
    .visitor-filter {
        font-size: 0.85rem !important;
        padding: 0.4rem 1rem !important;
    }
}