/* ==================== 1. 核心變數與主題定義 ==================== */
/* 預設主題 (紫色 Purple) */
:root, body.light {
    --primary: #8C03FC;
    --on-primary: #FEF0FB;
    --primary-container: #EC83FF;
    --on-primary-container: #5A0C72;
    --secondary: #862697;
    --on-secondary: #FFA8E5;
    --secondary-container: #FDABFD;
    --on-secondary-container: #7630A7;
    
    --surface: #FFF2FA;
    --on-surface: #44174E;
    --surface-variant: #FFE0F6;
    --on-surface-variant: #834994;
    --surface-container-lowest: #FFFFFF;
    --surface-container-low: #FFEBFC;
    --surface-container: #FEDFFB;
    --surface-container-high: #FFCBF6;
    --surface-container-highest: #FDC0F7;
    
    --outline: #8F4D8E;
    --outline-variant: #AF7AB1;
    --error: #DE291F;
    --error-container: #FFB0AD;
}

body.dark {
    --primary: #C661FF;
    --on-primary: #490082;
    --primary-container: #722295;
    --on-primary-container: #FF95E5;
    --secondary: #D295D4;
    --on-secondary: #40104B;
    --secondary-container: #6C3577;
    --on-secondary-container: #C187CD;
    
    --surface: #1c0424;
    --on-surface: #DBA9E7;
    --surface-variant: #32113e;
    --on-surface-variant: #B076C4;
    --surface-container-lowest: #0D0311;
    --surface-container-low: #240A2D;
    --surface-container: #30093c;
    --surface-container-high: #361642;
    --surface-container-highest: #421b50;
    
    --outline: #926D9B;
    --outline-variant: #493151;
    --error: #EE736E;
    --error-container: #8C1D18;
}

/* 藍色主題 (Blue) */
body.theme-blue.light {
    --primary: #005AC1;
    --on-primary: #FFFFFF;
    --primary-container: #D8E2FF;
    --on-primary-container: #001A41;
    --secondary: #575E71;
    --on-secondary: #FFFFFF;
    --secondary-container: #DBE2F9;
    --on-secondary-container: #141B2C;
    
    --surface: #FEFBFF;
    --on-surface: #1B1B1F;
    --surface-variant: #E1E2EC;
    --on-surface-variant: #44474F;
    
    --surface-container-lowest: #FFFFFF;
    --surface-container-low: #F7F2FA;
    --surface-container: #F3EDF7;
    --surface-container-high: #ECE6F0;
    --surface-container-highest: #E6E0E9;

    --outline: #74777F;
    --outline-variant: #C4C6D0;
}
body.theme-blue.dark {
    --primary: #ADC6FF;
    --on-primary: #002E69;
    --primary-container: #004494;
    --on-primary-container: #D8E2FF;
    --secondary: #BFC6DC;
    --on-secondary: #293041;
    --secondary-container: #3F4759;
    --on-secondary-container: #DBE2F9;
    
    --surface: #1B1B1F;
    --on-surface: #E3E2E6;
    --surface-variant: #44474F;
    --on-surface-variant: #C4C6D0;
    
    --surface-container-lowest: #0F0D13;
    --surface-container-low: #1D1B20;
    --surface-container: #211F26;
    --surface-container-high: #2B2930;
    --surface-container-highest: #36343B;

    --outline: #8E9199;
    --outline-variant: #44474F;
}

/* 綠色主題 (Green) */
body.theme-green.light {
    --primary: #006D42;
    --on-primary: #FFFFFF;
    --primary-container: #9EF6BE;
    --on-primary-container: #002111;
    --secondary: #526350;
    --on-secondary: #FFFFFF;
    --secondary-container: #D5E8D0;
    --on-secondary-container: #101F10;
    
    --surface: #FBFDF8;
    --on-surface: #191C1A;
    --surface-variant: #DDE5DA;
    --on-surface-variant: #414941;
    
    --surface-container-lowest: #FFFFFF;
    --surface-container-low: #F5FBF6;
    --surface-container: #F0F7F1;
    --surface-container-high: #EAEFEA;
    --surface-container-highest: #E4E9E4;

    --outline: #727970;
    --outline-variant: #C2C8BC;
}
body.theme-green.dark {
    --primary: #82D9A3;
    --on-primary: #003820;
    --primary-container: #005230;
    --on-primary-container: #9EF6BE;
    --secondary: #BACCB5;
    --on-secondary: #253424;
    --secondary-container: #3B4B39;
    --on-secondary-container: #D5E8D0;
    
    --surface: #191C1A;
    --on-surface: #E1E3DF;
    --surface-variant: #414941;
    --on-surface-variant: #C1C9BF;
    
    --surface-container-lowest: #0C0F0D;
    --surface-container-low: #191C1A;
    --surface-container: #1D201E;
    --surface-container-high: #272B28;
    --surface-container-highest: #323633;

    --outline: #8C9389;
    --outline-variant: #414941;
}

/* ==================== 2. 基礎全域樣式 ==================== */
body {
    font-family: 'Google Sans Flex', 'Noto Sans HK', sans-serif;
    background-color: var(--surface);
    color: var(--on-surface);
    transition: background-color 0.3s, color 0.3s;
    line-height: 1.6;
    font-variation-settings: 'ROND' 100;
}

/* 語言顯示控制 */
.lang-en { display: none; }
body.show-en .lang-zh { display: none; }
body.show-en .lang-en { display: inline; }

/* 標題樣式 */
h4, h5 {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    line-height: 1.3;
    font-size: 1.25rem; 
    font-weight: 500;
    color: var(--on-surface) !important;
}
h4 span, h5 span { color: var(--on-surface) !important; }


/* 圓形圖示容器 */
.icon-circle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    min-width: 40px;
    min-height: 40px;
    border-radius: 50%;
}
.icon-circle i { font-size: 24px; }

/* 頁籤內容與動畫 */
.tab-content { display: none; animation: fadeIn 0.3s; }
.tab-content.active { display: block; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 進場動畫 (Slide Up Fade In) */
.animate-entry {
    opacity: 0;
    transform: translateY(30px);
    animation: slideUpFade 0.6s cubic-bezier(0.2, 0, 0, 1) forwards;
}

/* 延遲類別 */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

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

/* ==================== 表格 ==================== */

.table-wrapper {
    border-radius: 12px;
    background-color: var(--surface-container-low);

    width: 100% !important;
    max-width: 100% !important;
    
    overflow-x: auto !important;
    display: block !important;
    
    -webkit-overflow-scrolling: touch;
}

.table-wrapper table {
    width: max-content !important; 
    min-width: 100% !important;
    border-collapse: collapse;
}

.table-wrapper th, 
.table-wrapper td {
    white-space: nowrap !important;
    padding: 12px 24px !important;
    text-align: left;
}

/* ==================== 全域文字連結樣式 ==================== */

p a, li a, .github-text a, main a:not(.button):not(.chip):not(.nav-item):not(nav a) {
    color: var(--primary); 
    text-decoration: none; 
    font-weight: 600;   
    border-bottom: 1px solid var(--outline-variant); 
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);

    padding: 0 2px;
    margin: 0 -2px;
    
	border-radius: 0px;
}

p a:hover, li a:hover, .github-text a:hover, main a:not(.button):not(.chip):not(.nav-item):not(nav a):hover {
    background-color: var(--primary-container);
    color: var(--on-primary-container); 
    border-bottom-color: transparent; 
    text-decoration: none;
	border-radius: 4px;
}

p a:active, li a:active, .github-text a:active {
    transform: scale(0.88);
}

/* ==================== 全域頁面轉場動畫 (View Transitions) ==================== */

@view-transition {
    navigation: auto;
}

::view-transition-old(root) {
    animation: page-fade-out 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

::view-transition-new(root) {
    animation: page-fade-in-up 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    mix-blend-mode: normal;
}

@keyframes page-fade-out {
    from { opacity: 1;}
    to { opacity: 0;}
}

@keyframes page-fade-in-up {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideUpFade {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

main {
    animation: slideUpFade 0.5s cubic-bezier(0.2, 0, 0, 1) forwards;
}

/* ==================== 3. 元件：樹狀選單 (Details) ==================== */
details.tree-details {
    background-color: var(--surface-container-high);
    border-radius: 24px;
    overflow: hidden;
    transition: all 0.2s;
    margin-bottom: 8px;
}
details.tree-details summary {
    list-style: none;
    cursor: pointer;
    padding: 16px;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--on-surface);
	font-size: 18px;
}
details.tree-details summary::after {
    content: 'expand_more';
    font-family: 'Material Symbols Outlined';
    font-size: 24px;
    transition: transform 0.2s;
}
details.tree-details[open] summary::after { transform: rotate(180deg); }
details.tree-details summary::-webkit-details-marker { display: none; }

.tree-view {
    font-family: 'Consolas', 'Monaco', monospace;
    padding: 0 16px 16px 16px;
    overflow-x: auto;
    white-space: pre;
    border: none;
    line-height: 1.5; 
    margin: 0;
    background-color: transparent;
}

/* ==================== 4. 元件：解鎖卡片 (Unlock Card) ==================== */
.unlock-card {
    cursor: pointer;
    background-color: var(--surface-container-high);
    padding: 16px 20px !important;
    border-radius: 24px;
    border: 1px solid transparent;
    transition: all 0.2s;
    position: relative;
    overflow: hidden;
    align-items: center;
}
.unlock-card:hover {
    background-color: var(--surface-container-highest);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}
.unlock-card svg {
    width: 40px;
    height: 40px;
    min-width: 40px;
    object-fit: contain;
    border-radius: 0 !important;
    clip-path: none !important;
}
.unlock-card-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    margin-left: 16px;
}
.unlock-card-content h6 {
    margin: 0 0 2px 0 !important;
    font-weight: 700;
    font-size: 1.1rem;
    line-height: 1.1;
}
.unlock-card-content p {
    margin: 0 !important;
    font-size: 0.9rem;
    opacity: 0.7;
    line-height: 1.2;
}
.unlock-icon-action {
    color: var(--primary);
    opacity: 0.8;
    transition: transform 0.2s;
}
.unlock-card:hover .unlock-icon-action { transform: translateX(4px); opacity: 1; }
.unlock-card.clicked {
    border-color: var(--primary);
    background-color: var(--surface-container-highest);
}

/* ==================== 5. 元件：分段列表與網格 (Segmented) ==================== */
.segmented-group { display: flex; flex-direction: column; gap: 2px; }
.segmented-item {
    background-color: var(--surface-container-low);
    padding: 16px 16px; 
    margin: 0 !important;
    border: none;
    display: flex;
    align-items: center;
}
.segmented-item div.text-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    margin-left: 12px;
}
.segmented-item h6 {
    margin: 0 !important;
    line-height: 1.2 !important;
    font-weight: 700;
    font-size: 1.1rem; 
}
.segmented-item p {
    margin: 0 !important;
    line-height: 1.2 !important;
    opacity: 0.8;
    font-size: 0.9rem;
    margin-top: 2px !important;
}
.segmented-group > .segmented-item:first-child { border-radius: 20px 20px 4px 4px; }
.segmented-group > .segmented-item:not(:first-child):not(:last-child) { border-radius: 4px; }
.segmented-group > .segmented-item:last-child { border-radius: 4px 4px 20px 20px; }

/* 模組卡片網格 */
.segmented-grid { display: grid; grid-template-columns: 1fr; gap: 2px; }
.mod-card {
    background-color: var(--surface-container-low);
    padding: 16px 16px;
    border: none;
    display: flex;
    align-items: center;
    height: 100%;
    margin: 0 !important;
    gap: 16px; 
}
.mod-card h6 {
    margin: 0 !important;
    line-height: 1.2 !important;
    font-weight: 700;
    font-size: 1.1rem;
}
.mod-card p {
    margin: 0 !important;
    line-height: 1.2 !important;
    opacity: 0.8;
    font-size: 0.9rem;
    margin-top: 4px !important;
}
.segmented-grid > .mod-card:first-child { border-radius: 20px 20px 4px 4px; }
.segmented-grid > .mod-card:not(:first-child):not(:last-child) { border-radius: 4px; }
.segmented-grid > .mod-card:last-child { border-radius: 4px 4px 20px 20px; }

@media (min-width: 993px) {
    .segmented-grid { grid-template-columns: 1fr 1fr; }
    .segmented-grid > .mod-card { border-radius: 4px !important; }
    .segmented-grid > .mod-card:nth-child(1) { border-radius: 20px 4px 4px 4px !important; }
    .segmented-grid > .mod-card:nth-child(2) { border-radius: 4px 20px 4px 4px !important; }
    .segmented-grid > .mod-card:nth-last-child(2) { border-radius: 4px 4px 4px 20px !important; }
    .segmented-grid > .mod-card:last-child { border-radius: 4px 4px 20px 4px !important; }
}

/* ==================== 6. 元件：其他通用 (Banners, Tables) ==================== */
.warning-banner {
    border: none;
    padding: 12px 24px;
    border-radius: 50px;
    width: fit-content;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.table-wrapper {
    border-radius: 12px;
    overflow: hidden;
    background-color: var(--surface-container-low);
}
.striped td, .striped th { padding: 12px 16px; }

/* Action Row Card (Home 頁面用) */
.action-row-card {
    background-color: var(--surface-container-low);
    padding: 16px 16px;
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    margin-bottom: 8px;
    transition: all 0.2s;
}

.action-row-card h5 {
    margin: 0 !important;
    font-size: 1.1rem;
    flex: 1;
    padding-right: 16px; 
}

.action-row-card .button {
    flex-shrink: 0;  
    margin-left: auto;
}

.action-row-card:hover {
    background-color: var(--surface-container-highest);
    transform: translateY(-2px);
}

/* Feature Card (Home 頁面用) */
.feature-card {
    background-color: var(--surface-container-low);
    padding: 24px;
    border-radius: 24px;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
}

/* Feature Card Hover 效果 */
.feature-card:hover {
    background-color: var(--surface-container-highest);
    transform: translateY(-4px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

/* Feature Card 圖示顏色調整 */
.feature-card .card-icon {
    margin-bottom: 16px;
    background-color: var(--primary-container) !important;
}
.feature-card .card-icon i {
    color: var(--on-primary-container) !important;
}

.feature-card h6 { margin-top: 0; margin-bottom: 8px; font-weight: 700; }
.feature-card p { opacity: 0.8; margin: 0; }

/* 圖片展示 Grid Item */
.gallery-item { margin-bottom: 16px; }
.gallery-item img {
    width: 100%;
    border-radius: 12px;
    background-color: var(--surface-container-highest);
    display: block;
    min-height: 150px; 
    object-fit: cover;
}
.gallery-caption {
    margin-top: 8px;
    font-size: 0.9rem;
    opacity: 0.8;
    text-align: center;
}

/* ==================== 導覽列特效 ==================== */

nav.top {

    background-color: var(--surface) !important; 
    background: color-mix(in srgb, var(--surface) 85%, transparent) !important;

    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

/* ==================== 7. 元件：選單與下拉 (Menu) ==================== */
@keyframes menu-pop {
    from { opacity: 0; transform: scale(0.9) translateY(-10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

menu {
    background-color: var(--surface-container) !important;
    border-radius: 16px !important;
    padding: 8px !important;
    box-shadow: 0 4px 8px 2px rgba(0,0,0,0.1), 0 4px 4px rgba(0,0,0,0.25) !important;
    animation: menu-pop 0.2s cubic-bezier(0.2, 0, 0, 1);
    transform-origin: top right;
    min-width: 240px;
}

menu > a, menu > label {
    margin: 4px 0 !important;
    padding: 12px 16px !important;
    border-radius: 12px !important;
    transition: background-color 0.2s;
    cursor: pointer;
}

menu > a:hover, menu > label:hover {
    background-color: var(--surface-container-highest) !important;
}

menu > .divider {
    margin: 8px 0;
    border-top: 1px solid var(--outline-variant);
    opacity: 0.5;
}

/* 分類標題 */
menu > .menu-header {
    padding: 8px 16px 4px 16px;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--primary);
    opacity: 0.8;
}

.dropdown-menu-fix {
    right: 0 !important;
    left: auto !important;
    margin-right: 0 !important;
    max-width: 85vw; 
    width: max-content;
    min-width: 220px;
}

/* ==================== 8. 互動元件：Input, Check, Progress ==================== */
/* 選擇器 Input */
input[type="color"].custom-picker {
    -webkit-appearance: none;
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 50%;
    padding: 0;
    overflow: hidden;
    cursor: pointer;
    box-shadow: 0 0 0 1px var(--outline-variant);
}
input[type="color"].custom-picker::-webkit-color-swatch-wrapper { padding: 0; }
input[type="color"].custom-picker::-webkit-color-swatch { border: none; border-radius: 50%; }

/* Checked Icon */
.check-icon {
    opacity: 0;
    transition: opacity 0.2s;
    color: var(--primary);
    font-size: 24px;
}
.selected .check-icon { opacity: 1; }

/* Progress Bar */
progress {
    border-radius: 99px;
    height: 8px;
    background: var(--surface-variant);
}
progress::-webkit-progress-bar { background: var(--surface-variant); border-radius: 99px; }
progress::-webkit-progress-value { background: var(--primary); border-radius: 99px; }
progress::-moz-progress-bar { background: var(--primary); border-radius: 99px; }

/* ==================== 9. Toast 通知 ==================== */
#toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--inverse-surface);
    color: var(--inverse-on-surface);
    padding: 12px 24px;
    border-radius: 50px;
    font-size: 0.9rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
#toast.show { opacity: 1; }

/* Chip Nav (Home 頁面) */
.chip-nav {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}
.chip-nav .chip { margin: 0; }

/* ==================== Gallery Lightbox (全螢幕展示) ==================== */

/* 1. 圖庫項目互動優化 */
.gallery-item {
    position: relative;
    cursor: pointer;
    overflow: hidden;
    transition: transform 0.2s;
}

/* 2. 右上角全螢幕提示圖示 */
.gallery-zoom-hint {
    position: absolute;
    top: 8px;
    right: 8px;
    background-color: rgba(0, 0, 0, 0.6);
    color: white;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
    z-index: 2;
}

.gallery-item:hover .gallery-zoom-hint {
    opacity: 1;
    transform: scale(1);
}

.gallery-item:hover img {
    filter: brightness(0.9);
}

/* 3. 全螢幕燈箱容器 */
#lightbox-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
	background-color: rgba(0, 0, 0, 0.6);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

#lightbox-modal.active {
    opacity: 1;
    pointer-events: auto;
}

/* 燈箱圖片 */
#lightbox-image {
    max-width: 90%;
    max-height: 80vh;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    transform: scale(0.95);
    transition: transform 0.3s ease;
    user-select: none;
}

#lightbox-modal.active #lightbox-image {
    transform: scale(1);
}

/* 燈箱文字 */
#lightbox-caption {
    margin-top: 16px;
    color: white;
    font-size: 1.2rem;
    font-weight: 500;
    text-align: center;
}

/* --- 關閉按鈕 --- */
#lightbox-close {
    position: absolute;
    top: 24px;
    right: 24px;
    color: white;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    aspect-ratio: 1/1;
    padding: 0;
    cursor: pointer;
    display: grid;
    place-items: center;
    transition: background 0.2s;
    z-index: 10001;
}
#lightbox-close:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* --- 左右切換按鈕 --- */
.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: none;
    border-radius: 50%;
    
    width: 56px;
    height: 56px;
    aspect-ratio: 1/1;
    padding: 0;
    
    display: grid;
    place-items: center;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    z-index: 10000;
}
.lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.3);
}
.lightbox-nav:active {
    transform: translateY(-50%) scale(0.95);
}
#lightbox-prev { left: 24px; }
#lightbox-next { right: 24px; }

/* 手機版調整 */
@media only screen and (max-width: 600px) {
    #lightbox-image { max-width: 95%; }

    .lightbox-nav { 
        width: 40px; 
        height: 40px; 
        aspect-ratio: 1/1; 
        background: rgba(0,0,0,0.5); 
    }
    #lightbox-prev { left: 10px; }
    #lightbox-next { right: 10px; }
    
    #lightbox-close { 
        top: 16px; 
        right: 16px; 
        width: 40px; 
        height: 40px; 
        aspect-ratio: 1/1;
    }
}

/* ==================== 隱藏瀏覽器滑桿 ==================== */

html {
    /* Firefox */
    scrollbar-width: none; 
}

/* Chrome, Edge, Safari */
::-webkit-scrollbar {
    display: none;
}

/* ==================== 調整區段間距 ==================== */

.space.large {
    height: 42px !important;
}

@media only screen and (max-width: 600px) {
    .space.large {
        height: 48px !important;
    }
}

h1.hero-title {
    font-family: 'Google Sans Flex', 'Noto Sans HK', sans-serif !important;

    font-weight: 860 !important;
    font-stretch: 115% !important;
    font-variation-settings: 'wght' 860, 'wdth' 115, 'ROND' 0 !important;

    font-size: 8.4rem !important; 
    
    line-height: 0.9 !important;
    letter-spacing: -0.02em !important;
    margin-bottom: 24px !important;
}

@media (max-width: 600px) {
    h1.hero-title {
        font-size: 3rem !important;
    }
}

@media only screen and (max-width: 600px) {
    body {
        padding-bottom: 80px;
    }

    nav.bottom {
        z-index: 2000;
    }
}

/* ==================== 超級大按鈕自定義樣式 ==================== */
.btn-hero-large {

    height: auto !important;
    padding: 36px 64px !important;

    font-size: 1.5rem !important;
    font-weight: 700 !important;
    letter-spacing: 0.05rem !important; 

    border-radius: 100px !important; 
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

.btn-hero-large i {
    font-size: 2.2rem !important;  
    margin-right: 12px !important;  
	
}

.btn-hero-large:hover {
	border-radius: 20px !important; 
}

@media only screen and (max-width: 600px) {
    .btn-hero-large {
        padding: 24px 12px !important;
        font-size: 1.25rem !important;
        width: 50%;
        justify-content: center;
    }
}

/* ==================== 導覽列外觀 ==================== */

nav.left, nav.bottom {
    background-color: var(--surface-container-high) !important;
}

@media only screen and (min-width: 601px) {
    nav.left {
        padding-top: 48px !important; 
        justify-content: flex-start !important; 
        gap: 24px; 
    }
}

/* 滾動進度條 */
#scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--primary);
    z-index: 9999;
    transition: width 0.1s ease-out;
    box-shadow: 0 0 10px var(--primary);
}

/* 廣告容器 */
.ad-container {
    border: 1px dashed var(--outline-variant);
    border-radius: 16px;
    overflow: hidden;
}

/* Cloudflare Turnstile 容器 */
.cf-turnstile {
    margin: 0 auto;
    min-height: 65px;
}

/* Java Edition Chip 特別樣式 */
.chip.error {
    background-color: var(--error-container) !important;
    color: var(--on-surface) !important;
    border: 1px solid var(--error);
}
.chip.error i { color: var(--error); }