/* style.css */
/* 國立金門大學資工系一年級 洪晨祐 (111410517) */
/* 專案功能：全域 UI 設計系統 - 商業級流光毛玻璃 Glassmorphism */

:root {
    --bg-dark: #080710;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shine: rgba(255, 255, 255, 0.2);
    --neon-blue: #00f2fe;
    --neon-purple: #4facfe;
    --neon-pink: #ff0844;
    --text-white: #ffffff;
    --text-gray: #c7c7c7;
    --text-muted: #8a8a8a;
    --shadow-glow: 0 8px 32px 0 rgba(0, 242, 254, 0.15);
}

/* 全域重設與背景 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-dark);
    font-family: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: var(--text-white);
    min-height: 100vh;
    overflow-x: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* 霓虹流光背景光暈 */
.glow-bg-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    background: radial-gradient(circle at 50% 50%, #151030 0%, var(--bg-dark) 80%);
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.4;
    animation: floatAnimation 20s infinite ease-in-out alternate;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: var(--neon-blue);
    top: -100px;
    left: -100px;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: var(--neon-pink);
    bottom: -150px;
    right: -100px;
    animation-delay: -5s;
}

.orb-3 {
    width: 350px;
    height: 350px;
    background: var(--neon-purple);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -10s;
}

@keyframes floatAnimation {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, 80px) scale(1.2); }
}

/* 主體 Layout (發光毛玻璃面板) */
.portfolio-container {
    width: 95vw;
    max-width: 1400px;
    height: 90vh;
    min-height: 750px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4), var(--shadow-glow);
    padding: 24px;
    z-index: 1;
}

/* 頂部導航 */
.portfolio-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 16px;
    margin-bottom: 20px;
}

.header-logo h1 {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: 1px;
}

.header-logo span {
    color: var(--neon-blue);
}

.logo-badge {
    background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
    font-size: 10px;
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: 600;
    margin-bottom: 4px;
    display: inline-block;
}

.student-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.info-tag {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--glass-border);
    font-size: 12px;
    padding: 6px 12px;
    border-radius: 8px;
    color: var(--text-gray);
}

.info-name {
    font-size: 14px;
    font-weight: 600;
    background: linear-gradient(to right, #ffffff, var(--neon-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 主體分欄 */
.portfolio-main {
    flex: 1;
    display: flex;
    gap: 24px;
    height: calc(100% - 100px);
    overflow: hidden;
}

/* 左側邊欄 */
.portfolio-sidebar {
    width: 320px;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--glass-border);
    padding-right: 20px;
}

.sidebar-title h2 {
    font-size: 18px;
    font-weight: 600;
}

.sidebar-title p {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
    margin-bottom: 16px;
}

.homework-nav {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
    overflow-y: auto;
    padding-right: 4px;
}

.nav-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    padding: 12px;
    display: flex;
    align-items: center;
    gap: 14px;
    cursor: pointer;
    text-align: left;
    color: var(--text-white);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(0, 242, 254, 0.4);
    transform: translateX(4px);
    box-shadow: 0 4px 20px rgba(0, 242, 254, 0.05);
}

.nav-item.active {
    background: rgba(0, 242, 254, 0.08);
    border-color: var(--neon-blue);
    box-shadow: 0 0 15px rgba(0, 242, 254, 0.1);
}

.nav-num {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-muted);
    opacity: 0.5;
    transition: color 0.3s;
}

.nav-item.active .nav-num {
    color: var(--neon-blue);
    opacity: 1;
}

.nav-meta h3 {
    font-size: 14px;
    font-weight: 600;
}

.nav-meta p {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
}

/* 右側內容視窗 */
.portfolio-content-window {
    flex: 1;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: 18px;
    padding: 20px;
    overflow: hidden;
    position: relative;
}

/* Tab 內容隱藏 */
.tab-content {
    display: none;
    height: 100%;
    flex-direction: column;
}

.tab-content.active {
    display: flex;
}

.content-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 12px;
}

.content-header h2 {
    font-size: 18px;
    font-weight: 600;
}

.tech-badge {
    background: rgba(0, 242, 254, 0.1);
    border: 1px solid rgba(0, 242, 254, 0.2);
    color: var(--neon-blue);
    font-size: 10px;
    padding: 3px 8px;
    border-radius: 6px;
    font-weight: 600;
}

/* Iframe 容器 */
.iframe-container {
    flex: 1;
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--glass-border);
    background: #000;
}

.iframe-container iframe {
    width: 100%;
    height: 100%;
}

/* ========================================== */
/* 💻 JS 在線沙盒 (Interactive JS Sandbox)    */
/* ========================================== */

.sandbox-layout {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 14px;
    height: calc(100% - 40px);
    overflow: hidden;
}

.sandbox-selector-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--glass-border);
    padding: 10px 16px;
    border-radius: 10px;
}

.sandbox-selector-bar select {
    background: rgba(0, 0, 0, 0.5);
    color: var(--text-white);
    border: 1px solid var(--glass-border);
    padding: 6px 12px;
    border-radius: 6px;
    outline: none;
    font-family: inherit;
    cursor: pointer;
    flex-grow: 1;
}

.run-btn {
    background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
    color: var(--text-white);
    border: none;
    padding: 7px 18px;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.run-btn:hover {
    box-shadow: 0 0 15px rgba(0, 242, 254, 0.3);
    transform: translateY(-1px);
}

.sandbox-panels {
    flex: 1;
    display: flex;
    gap: 16px;
    height: 60%;
    overflow: hidden;
}

.panel-code, .panel-terminal {
    flex: 1;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.4);
}

.panel-title {
    background: rgba(255, 255, 255, 0.05);
    font-size: 11px;
    color: var(--text-gray);
    padding: 6px 12px;
    font-weight: 600;
    border-bottom: 1px solid var(--glass-border);
}

.panel-code pre {
    flex: 1;
    padding: 14px;
    overflow: auto;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 12px;
    background: #09090e;
    color: #a9b7c6;
}

.terminal-body {
    flex: 1;
    padding: 14px;
    overflow-y: auto;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 13px;
    background: #050508;
    color: #33ff33;
    line-height: 1.5;
}

.terminal-prompt {
    color: var(--neon-blue);
    font-weight: bold;
}

.terminal-log { color: #fff; }
.terminal-info { color: #00f2fe; }
.terminal-error { color: #ff0844; }

/* 學術報告顯示 */
.academic-report-box {
    height: 150px;
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    background: #09090e;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.report-content {
    flex: 1;
    padding: 12px;
    overflow-y: auto;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 11px;
    color: #00f2fe;
    line-height: 1.4;
}

/* ========================================== */
/* 📬 Serverless 網誌系統樣式                 */
/* ========================================== */

.blog-app-container {
    flex: 1;
    display: flex;
    gap: 20px;
    height: calc(100% - 40px);
    overflow: hidden;
}

.blog-sidebar {
    width: 250px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.blog-user-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
}

.blog-user-card p {
    font-size: 13px;
    margin-bottom: 10px;
}

.blog-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    color: var(--text-white);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 12px;
    cursor: pointer;
    width: 100%;
    transition: all 0.3s;
}

.blog-btn:hover {
    background: rgba(0, 242, 254, 0.1);
    border-color: var(--neon-blue);
}

.blog-btn.submit {
    background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
    border: none;
    font-weight: 600;
}

.blog-btn.register {
    background: rgba(255, 8, 68, 0.1);
    border-color: var(--neon-pink);
}

.blog-composer-box {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.blog-composer-box h3 {
    font-size: 14px;
    font-weight: 600;
}

.blog-composer-box textarea {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--glass-border);
    color: var(--text-white);
    border-radius: 8px;
    padding: 10px;
    height: 100px;
    resize: none;
    outline: none;
    font-family: inherit;
    font-size: 13px;
}

.composer-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
}

.privacy-checkbox {
    font-size: 11px;
    color: var(--text-gray);
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
}

.blog-posts-feed {
    flex: 1;
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.feed-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid var(--glass-border);
    background: rgba(255, 255, 255, 0.02);
}

.feed-header h3 {
    font-size: 14px;
}

.refresh-btn {
    background: transparent;
    border: none;
    color: var(--neon-blue);
    font-size: 12px;
    cursor: pointer;
    font-weight: 600;
}

.posts-list-wrapper {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.blog-post-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 14px;
    position: relative;
}

.post-meta-row {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.post-author {
    color: var(--neon-blue);
    font-weight: 600;
}

.post-content {
    font-size: 13px;
    line-height: 1.5;
}

.post-privacy-badge {
    background: rgba(255, 8, 68, 0.1);
    border: 1px solid rgba(255, 8, 68, 0.2);
    color: var(--neon-pink);
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 9px;
    margin-left: 6px;
}

/* ========================================== */
/* 🛒 Serverless 商城樣式                      */
/* ========================================== */

.shop-app-container {
    flex: 1;
    display: flex;
    gap: 20px;
    height: calc(100% - 40px);
    overflow: hidden;
}

.shop-products-column {
    flex: 2;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.shop-filter-row {
    display: flex;
    gap: 8px;
}

.filter-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    color: var(--text-gray);
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.3s;
}

.filter-btn:hover, .filter-btn.active {
    background: rgba(0, 242, 254, 0.08);
    border-color: var(--neon-blue);
    color: var(--text-white);
}

.shop-products-grid {
    flex: 1;
    overflow-y: auto;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    padding-right: 4px;
}

.shop-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: all 0.3s;
}

.shop-card:hover {
    border-color: var(--neon-blue);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 242, 254, 0.1);
}

.shop-card-img {
    height: 120px;
    overflow: hidden;
    position: relative;
    background: #000;
}

.shop-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.shop-card-badge {
    position: absolute;
    top: 6px;
    left: 6px;
    background: rgba(0, 242, 254, 0.8);
    font-size: 8px;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 600;
}

.shop-card-info {
    padding: 10px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.shop-card-info h4 {
    font-size: 13px;
    font-weight: 600;
    height: 36px;
    overflow: hidden;
}

.shop-card-info p {
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 4px;
    flex-grow: 1;
}

.shop-card-price-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px;
}

.shop-price {
    color: var(--neon-blue);
    font-size: 13px;
    font-weight: 600;
}

.shop-add-btn {
    background: var(--neon-blue);
    border: none;
    color: var(--bg-dark);
    font-size: 10px;
    font-weight: bold;
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
}

.shop-add-btn:hover {
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.4);
}

.shop-cart-column {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.cart-glass-panel {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    padding: 16px;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.cart-items-wrapper {
    flex: 1;
    overflow-y: auto;
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.cart-item-row {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 8px 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
}

.cart-item-name {
    font-weight: 600;
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cart-item-qty {
    color: var(--neon-blue);
}

.cart-item-remove {
    background: transparent;
    border: none;
    color: var(--neon-pink);
    cursor: pointer;
    font-weight: bold;
}

.cart-summary-box {
    border-top: 1px solid var(--glass-border);
    padding-top: 12px;
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
}

.summary-row.promo {
    color: var(--neon-pink);
}

.summary-row.total {
    font-size: 14px;
    font-weight: bold;
    color: var(--neon-blue);
    border-top: 1px dashed var(--glass-border);
    padding-top: 6px;
}

.checkout-btn {
    background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
    color: var(--text-white);
    border: none;
    width: 100%;
    padding: 8px;
    border-radius: 8px;
    font-weight: 600;
    margin-top: 10px;
    cursor: pointer;
}

/* 電子收據 */
.receipt-glass-panel {
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid var(--neon-blue);
    border-radius: 14px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 0 0 20px rgba(0, 242, 254, 0.2);
    height: 100%;
}

.receipt-success-icon {
    width: 50px;
    height: 50px;
    background: var(--neon-blue);
    border-radius: 50%;
    color: var(--bg-dark);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 12px;
}

.receipt-glass-panel h3 {
    font-size: 16px;
}

.receipt-meta {
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 4px;
    margin-bottom: 12px;
}

.receipt-glass-panel hr {
    width: 100%;
    border: none;
    border-top: 1px dashed var(--glass-border);
    margin: 8px 0;
}

.receipt-items-list {
    width: 100%;
    flex: 1;
    overflow-y: auto;
    font-family: monospace;
    font-size: 11px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.receipt-item-line {
    display: flex;
    justify-content: space-between;
}

.receipt-total-row {
    width: 100%;
    display: flex;
    justify-content: space-between;
    font-size: 13px;
}

.receipt-total-row strong {
    color: var(--neon-blue);
}

.receipt-footer {
    font-size: 9px;
    color: var(--text-muted);
    text-align: center;
    margin: 12px 0;
}

.close-receipt-btn {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--glass-border);
    color: var(--text-white);
    padding: 6px 16px;
    border-radius: 6px;
    cursor: pointer;
}

/* ========================================== */
/* 📊 Markdown 閱讀器與 Modal                */
/* ========================================== */

.markdown-reader-box {
    flex: 1;
    background: #09090e;
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 20px;
    overflow-y: auto;
    font-size: 14px;
    line-height: 1.6;
}

/* Markdown 基本渲染微調 */
.markdown-reader-box h1 { font-size: 22px; border-bottom: 1px solid var(--glass-border); padding-bottom: 8px; margin-bottom: 14px; }
.markdown-reader-box h2 { font-size: 18px; margin-top: 18px; margin-bottom: 8px; color: var(--neon-blue); }
.markdown-reader-box h3 { font-size: 15px; margin-top: 12px; margin-bottom: 6px; }
.markdown-reader-box pre { background: #000; padding: 12px; border-radius: 8px; border: 1px solid var(--glass-border); margin: 10px 0; overflow-x: auto; }
.markdown-reader-box code { font-family: monospace; font-size: 12px; color: var(--neon-blue); }
.markdown-reader-box ul, .markdown-reader-box ol { padding-left: 20px; margin: 8px 0; }
.markdown-reader-box blockquote { border-left: 4px solid var(--neon-blue); padding-left: 12px; color: var(--text-gray); font-style: italic; margin: 10px 0; }
.markdown-reader-box .md-link {
    color: var(--neon-blue);
    text-decoration: none;
    border-bottom: 1px dashed rgba(0, 242, 254, 0.4);
    transition: all 0.3s;
    font-weight: 600;
}
.markdown-reader-box .md-link:hover {
    color: #fff;
    border-bottom-color: var(--neon-blue);
    text-shadow: 0 0 8px rgba(0, 242, 254, 0.8);
}
.markdown-reader-box .md-table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
    font-size: 13px;
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    overflow: hidden;
}
.markdown-reader-box .md-table th {
    background: rgba(255, 255, 255, 0.04);
    color: var(--neon-blue);
    font-weight: 600;
    padding: 10px 14px;
    text-align: left;
    border-bottom: 1px solid var(--glass-border);
}
.markdown-reader-box .md-table td {
    padding: 10px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    color: var(--text-gray);
}
.markdown-reader-box .md-table tr:hover {
    background: rgba(0, 242, 254, 0.02);
}

/* 網誌登入 Modal */
.blog-auth-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 999;
}

.blog-auth-modal.show {
    display: flex;
}

.modal-glass-card {
    width: 90%;
    max-width: 400px;
    background: rgba(25, 20, 45, 0.85);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 24px;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), var(--shadow-glow);
}

.modal-close {
    position: absolute;
    top: 14px;
    right: 18px;
    font-size: 24px;
    cursor: pointer;
    opacity: 0.6;
}

.modal-close:hover { opacity: 1; }

.modal-glass-card h2 {
    font-size: 18px;
    text-align: center;
    margin-bottom: 20px;
}

.modal-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.modal-form input {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--glass-border);
    color: var(--text-white);
    border-radius: 8px;
    padding: 10px 14px;
    outline: none;
    font-size: 13px;
}

.modal-form input:focus {
    border-color: var(--neon-blue);
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.2);
}

.modal-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.modal-tip {
    font-size: 10px;
    color: var(--text-muted);
    text-align: center;
    margin-top: 10px;
}

/* 頁尾 */
.portfolio-footer {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: var(--text-muted);
    border-top: 1px solid var(--glass-border);
    padding-top: 12px;
    margin-top: 16px;
}