/* ================================================================
   paper.css — CvHub 論文雙欄批注頁面共用樣式
   適用於 classics/、cvpr/、iccv/、eccv/ 下的所有論文 HTML
   ================================================================ */

/* ===== 全域重設與基礎樣式 ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Times New Roman', 'Microsoft JhengHei', serif;
    background-color: #faf8f5; /* 米白紙張底色 */
    color: #2c2c2c;
    line-height: 1.7;
}

/* ===== 頂部導航欄 ===== */
.top-navbar {
    background-color: #1a2332; /* 深海軍藍 */
    color: #fff;
    padding: 18px 30px;
    position: relative;
    z-index: 1000;
}

.navbar-inner {
    max-width: 1400px;
    margin: 0 auto;
}

.navbar-top-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.navbar-title {
    font-family: 'Times New Roman', 'Microsoft JhengHei', serif;
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.3px;
}

/* 會議年份標籤 */
.navbar-title .course-tag {
    display: inline-block;
    background: rgba(255,255,255,0.15);
    padding: 2px 10px;
    border-radius: 3px;
    font-size: 0.78rem;
    font-weight: 500;
    margin-left: 12px;
    vertical-align: middle;
}

/* Best Paper 金色徽章 */
.navbar-title .best-paper-badge {
    display: inline-block;
    background: linear-gradient(135deg, #f6d365, #d4a017);
    color: #1a2332;
    padding: 2px 10px;
    border-radius: 3px;
    font-size: 0.78rem;
    font-weight: 700;
    margin-left: 8px;
    vertical-align: middle;
}

/* Honorable Mention 藍色徽章（舊命名） */
.navbar-title .honorable-badge {
    display: inline-block;
    background: linear-gradient(135deg, #a8d8ea, #5b9bd5);
    color: #1a2332;
    padding: 2px 10px;
    border-radius: 3px;
    font-size: 0.78rem;
    font-weight: 700;
    margin-left: 8px;
    vertical-align: middle;
}

/* Honorable Mention 藍色徽章（新命名） */
.navbar-title .honorable-mention-badge {
    display: inline-block;
    background: linear-gradient(135deg, #a8d8ea, #5b9bd5);
    color: #1a2332;
    padding: 2px 10px;
    border-radius: 3px;
    font-size: 0.78rem;
    font-weight: 700;
    margin-left: 8px;
    vertical-align: middle;
}

/* 主題徽章（少數 ICCV 2013 論文使用） */
.navbar-title .topic-badge {
    display: inline-block;
    background: linear-gradient(135deg, #5b9bd5, #3a7cc0);
    color: #fff;
    padding: 2px 10px;
    border-radius: 3px;
    font-size: 0.78rem;
    font-weight: 700;
    margin-left: 8px;
    vertical-align: middle;
}

/* 一般獎項標籤（dancedepth 等論文使用） */
.navbar-title .award-tag {
    display: inline-block;
    background: rgba(255,193,7,0.3);
    color: #ffd54f;
    padding: 2px 10px;
    border-radius: 3px;
    font-size: 0.78rem;
    font-weight: 600;
    margin-left: 8px;
    vertical-align: middle;
}

/* 重點論文徽章（depthcrafter 等論文使用） */
.navbar-title .highlight-badge {
    display: inline-block;
    background: linear-gradient(135deg, #5b9bd5, #3a7bd5);
    color: #fff;
    padding: 2px 10px;
    border-radius: 3px;
    font-size: 0.78rem;
    font-weight: 700;
    margin-left: 8px;
    vertical-align: middle;
}

.navbar-links {
    display: flex;
    align-items: center;
    gap: 16px;
}

.navbar-home-link {
    color: #ccc;
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.2s;
}
.navbar-home-link:hover {
    color: #fff;
}

/* ===== 舊版圖例（2020-2021 論文的導航列內嵌圖例） ===== */
.color-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 12px;
    font-size: 0.8rem;
}
.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
}
.legend-swatch {
    width: 16px;
    height: 16px;
    border-radius: 3px;
    border: 1px solid rgba(255,255,255,0.3);
}

/* ===== 章節導航條（黏性） ===== */
.section-nav {
    background-color: #243044;
    position: sticky;
    top: 0;
    z-index: 999;
    padding: 0 30px;
    overflow-x: auto;
    white-space: nowrap;
    border-bottom: 2px solid #1a2332;
}

.section-nav-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    gap: 0;
}

.section-nav a {
    color: #aab;
    text-decoration: none;
    font-size: 0.82rem;
    font-weight: 500;
    padding: 10px 16px;
    display: inline-block;
    transition: background 0.2s, color 0.2s;
    border-bottom: 2px solid transparent;
}

.section-nav a:hover {
    background: rgba(255,255,255,0.06);
    color: #fff;
    border-bottom-color: #5b9bd5;
}

/* ===== 主體容器 ===== */
.main-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 30px 30px 60px;
}

/* 章節標題 */
.section-heading {
    font-family: 'Times New Roman', 'Microsoft JhengHei', serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: #1a2332;
    margin: 50px 0 8px;
    padding-bottom: 8px;
    border-bottom: 3px solid #1a2332;
    scroll-margin-top: 60px;
}

.section-heading:first-of-type {
    margin-top: 10px;
}

.subsection-heading {
    font-family: 'Times New Roman', 'Microsoft JhengHei', serif;
    font-size: 1.15rem;
    font-weight: 600;
    color: #2a3a50;
    margin: 30px 0 6px;
    scroll-margin-top: 60px;
}

/* ===== 雙欄段落行 ===== */
.para-row {
    display: flex;
    gap: 28px;
    margin: 22px 0;
    align-items: flex-start;
}

/* 左欄 */
.left-col {
    flex: 0 0 63%;
    max-width: 63%;
}

/* 英文原文 */
.en-text {
    font-family: 'Times New Roman', 'Microsoft JhengHei', serif;
    font-size: 1.02rem;
    line-height: 1.85;
    color: #1e1e1e;
    text-align: justify;
}

/* 英中分隔線 */
.lang-divider {
    height: 1px;
    background: #d5d0c8;
    margin: 10px 0;
}

/* 中文譯文塊 */
.zh-text {
    background-color: #f0ece2;
    border-left: 3px solid #b8a88a;
    padding: 12px 16px;
    font-size: 0.96rem;
    line-height: 1.85;
    color: #3a3a3a;
    border-radius: 0 4px 4px 0;
}

/* 右欄 */
.right-col {
    flex: 0 0 34%;
    max-width: 34%;
}

/* ===== 批注卡片 ===== */
.annotation-card {
    background: #f7f5f0;
    border-radius: 4px;
    padding: 14px 16px;
    font-size: 0.88rem;
    line-height: 1.7;
    border: 1px solid #e8e4dc;
}

.annotation-card .ann-label {
    font-weight: 700;
    font-size: 0.78rem;
    color: #1a2332;
    margin-bottom: 4px;
    display: block;
}

.annotation-card .ann-section {
    margin-bottom: 10px;
}

.annotation-card .ann-section:last-child {
    margin-bottom: 0;
}

/* 批注卡片的左色邊依據段落類型 */
.ann-intro    { border-left: 4px solid #ffc107; }
.ann-concept  { border-left: 4px solid #dc3545; }
.ann-evidence { border-left: 4px solid #007bff; }
.ann-rebuttal { border-left: 4px solid #28a745; }
.ann-method   { border-left: 4px solid #7b61c4; }

/* ===== 五維度高亮標注 ===== */
.hl-thesis   { background-color: #fff3cd; padding: 1px 3px; border-radius: 2px; }
.hl-concept  { background-color: #f8d7da; padding: 1px 3px; border-radius: 2px; }
.hl-evidence { background-color: #cce5ff; padding: 1px 3px; border-radius: 2px; }
.hl-rebuttal { background-color: #d4edda; padding: 1px 3px; border-radius: 2px; }
.hl-method   { background-color: #e2d5f1; padding: 1px 3px; border-radius: 2px; }

/* ===== 論文圖片容器（classics 及未來有圖論文使用） ===== */
.figure-container {
    margin: 30px 0;
    padding: 24px 20px;
    background: #fff;
    border: 1px solid #e0dcd4;
    border-radius: 6px;
    text-align: center;
    overflow-x: auto;
}

.figure-container img {
    max-width: 100%;
    height: auto;
}

.figure-caption {
    margin-top: 14px;
    font-size: 0.9rem;
    color: #555;
    line-height: 1.6;
    text-align: center;
}

.figure-caption .fig-label {
    font-weight: 700;
    color: #1a2332;
}

/* 並排圖片列（DDPM 等論文使用） */
.figure-row {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== 演算法虛擬碼框（DDPM 等論文使用） ===== */
.algorithm-box {
    background: #f9f7f3;
    border: 1px solid #d5d0c8;
    border-radius: 6px;
    padding: 20px 24px;
    text-align: left;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 0.88rem;
    line-height: 1.8;
    display: inline-block;
    min-width: 320px;
    max-width: 500px;
    vertical-align: top;
}

.algorithm-box .algo-title {
    font-family: 'Times New Roman', 'Microsoft JhengHei', serif;
    font-weight: 700;
    font-size: 0.95rem;
    color: #1a2332;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid #d5d0c8;
}

.algorithm-box .algo-keyword { font-weight: 700; color: #1a2332; }
.algorithm-box .algo-comment { color: #888; font-style: italic; }
.algorithm-box .line-num {
    color: #999;
    margin-right: 12px;
    display: inline-block;
    min-width: 20px;
    text-align: right;
}

/* ===== 底部論證結構總覽 ===== */
@keyframes bar-flow {
    0%   { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

.argument-overview {
    margin-top: 80px;
    padding: 52px 36px 56px;
    background: linear-gradient(180deg, #f5f2ec 0%, #ece8e0 100%);
    color: #2c2c2c;
    border-radius: 14px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 24px rgba(26,35,50,0.07);
}

/* 流動五色頂飾 */
.argument-overview::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, #ffc107, #dc3545, #007bff, #28a745, #7b61c4, #ffc107);
    background-size: 200% 100%;
    animation: bar-flow 6s linear infinite;
    border-radius: 14px 14px 0 0;
}

.argument-overview > * { position: relative; z-index: 1; }

.argument-overview h2 {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 5px;
    text-transform: uppercase;
    margin-bottom: 42px;
    text-align: center;
    color: #1a2332;
}

/* 邏輯骨架 */
.arg-skeleton {
    display: flex;
    flex-wrap: nowrap;
    justify-content: center;
    align-items: stretch;
    gap: 0;
    margin: 0 auto 48px;
    max-width: 920px;
}

.arg-step {
    background: #fff;
    padding: 20px 12px 16px;
    border-radius: 10px;
    font-size: 0.82rem;
    text-align: center;
    flex: 1;
    min-width: 0;
    border: 1px solid #e8e4dc;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.arg-step:hover { transform: translateY(-4px); }
.arg-step:nth-child(1):hover { box-shadow: 0 8px 24px rgba(255,193,7,0.18); }
.arg-step:nth-child(3):hover { box-shadow: 0 8px 24px rgba(220,53,69,0.15); }
.arg-step:nth-child(5):hover { box-shadow: 0 8px 24px rgba(0,123,255,0.16); }
.arg-step:nth-child(7):hover { box-shadow: 0 8px 24px rgba(40,167,69,0.15); }
.arg-step:nth-child(9):hover { box-shadow: 0 8px 24px rgba(123,97,196,0.18); }

/* 色碼頂線 */
.arg-step:nth-child(1) { border-top: 4px solid #ffc107; }
.arg-step:nth-child(3) { border-top: 4px solid #dc3545; }
.arg-step:nth-child(5) { border-top: 4px solid #007bff; }
.arg-step:nth-child(7) { border-top: 4px solid #28a745; }
.arg-step:nth-child(9) { border-top: 4px solid #7b61c4; }

/* 實色藥丸標籤 */
.arg-step strong {
    display: inline-block;
    font-size: 0.66rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 8px;
    padding: 3px 12px;
    border-radius: 10px;
}
.arg-step:nth-child(1) strong { background: #ffc107; color: #1a2332; }
.arg-step:nth-child(3) strong { background: #dc3545; color: #fff; }
.arg-step:nth-child(5) strong { background: #007bff; color: #fff; }
.arg-step:nth-child(7) strong { background: #28a745; color: #fff; }
.arg-step:nth-child(9) strong { background: #7b61c4; color: #fff; }

.arg-arrow {
    display: flex;
    align-items: center;
    padding: 0 5px;
    font-size: 1.1rem;
    color: #b8b0a4;
    flex-shrink: 0;
}

/* 詳細分析卡片 */
.arg-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    max-width: 920px;
    margin: 0 auto;
}

/* 核心主張 — 金色引述（全寬） */
.arg-detail-card:first-child {
    grid-column: 1 / -1;
    background: #fff;
    border: 1px solid rgba(255,193,7,0.35);
    border-radius: 12px;
    padding: 32px 40px;
    text-align: center;
    position: relative;
    box-shadow: 0 1px 8px rgba(255,193,7,0.08);
}
.arg-detail-card:first-child::before {
    content: '\201C';
    position: absolute;
    top: 6px; left: 22px;
    font-size: 4rem;
    color: rgba(255,193,7,0.25);
    font-family: Georgia, 'Times New Roman', serif;
    line-height: 1;
}
.arg-detail-card:first-child h3 {
    font-size: 0.7rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: #b8960a;
    margin-bottom: 14px;
}
.arg-detail-card:first-child p {
    font-size: 1.02rem;
    line-height: 1.95;
    color: #3a3a3a;
    max-width: 700px;
    margin: 0 auto;
    font-style: italic;
}

.arg-detail-card {
    background: #fff;
    border: 1px solid #e8e4dc;
    border-radius: 10px;
    padding: 22px 20px;
    transition: transform 0.2s ease;
}
.arg-detail-card:hover { transform: translateY(-2px); }

/* 最強處 */
.arg-detail-card:nth-child(2) { border-left: 4px solid #4caf50; }
.arg-detail-card:nth-child(2) h3 { color: #2e7d32; }

/* 最弱處 */
.arg-detail-card:nth-child(3) { border-left: 4px solid #ff7043; }
.arg-detail-card:nth-child(3) h3 { color: #d84315; }

.arg-detail-card h3 { font-size: 0.82rem; font-weight: 600; margin-bottom: 10px; color: #1a2332; }
.arg-detail-card p { font-size: 0.86rem; line-height: 1.7; color: #555; }
.arg-detail-card p strong { color: #2c2c2c; }

/* ===== 響應式：行動裝置單欄（≤900px） ===== */
@media (max-width: 900px) {
    .para-row {
        flex-direction: column;
    }
    .left-col, .right-col {
        flex: 0 0 100%;
        max-width: 100%;
    }
    .argument-overview { padding: 40px 20px 44px; }
    .arg-skeleton {
        flex-direction: column;
        align-items: center;
        max-width: 280px;
        margin-left: auto;
        margin-right: auto;
    }
    .arg-step { width: 100%; }
    .arg-arrow {
        transform: rotate(90deg);
        padding: 3px 0;
        font-size: 0.9rem;
    }
    .arg-detail-grid { grid-template-columns: 1fr; }
    .arg-detail-card:first-child { padding: 24px 20px; }
    .arg-detail-card:first-child::before { font-size: 2.5rem; top: 4px; left: 12px; }
    .figure-row { flex-direction: column; align-items: center; }
}

/* ===== 響應式：小螢幕（≤600px） ===== */
@media (max-width: 600px) {
    .top-navbar { padding: 12px 14px; }
    .navbar-top-row { flex-direction: column; align-items: flex-start; gap: 6px; }
    .navbar-title { font-size: 0.85rem; line-height: 1.4; }
    .navbar-title .course-tag,
    .navbar-title .best-paper-badge,
    .navbar-title .honorable-badge,
    .navbar-title .honorable-mention-badge,
    .navbar-title .topic-badge,
    .navbar-title .award-tag,
    .navbar-title .highlight-badge { font-size: 0.65rem; padding: 2px 6px; margin-left: 4px; }
    .navbar-links { width: 100%; justify-content: flex-start; gap: 12px; }
    .section-nav { padding: 0 10px; }
    .section-nav a { font-size: 0.75rem; padding: 8px 10px; }
    .main-container { padding: 16px 12px 40px; }
}

/* ===== 浮動顏色圖例 ===== */
.floating-legend {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 9999;
    font-family: 'Times New Roman', 'Microsoft JhengHei', serif;
}
.legend-toggle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #1a2332;
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    margin-left: auto;
}
.legend-toggle:hover { background: #243044; }
.hl-icon {
    display: block; width: 14px; height: 14px; border-radius: 2px;
    background:
        linear-gradient(#fff3cd, #fff3cd) 0 0/100% 2px no-repeat,
        linear-gradient(#f8d7da, #f8d7da) 0 3px/100% 2px no-repeat,
        linear-gradient(#cce5ff, #cce5ff) 0 6px/100% 2px no-repeat,
        linear-gradient(#d4edda, #d4edda) 0 9px/100% 2px no-repeat,
        linear-gradient(#e2d5f1, #e2d5f1) 0 12px/100% 2px no-repeat;
}
.legend-panel {
    display: none;
    background: #1a2332;
    color: #fff;
    padding: 14px 18px;
    border-radius: 8px;
    margin-bottom: 8px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.25);
    font-size: 0.8rem;
    min-width: 200px;
}
.legend-panel.open { display: block; }
.legend-panel .fl-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 0;
}
.legend-panel .fl-swatch {
    width: 14px;
    height: 14px;
    border-radius: 3px;
    flex-shrink: 0;
}