/* --- 全局與色彩設定 --- */
:root {
    --light-bg: #f8f9fa; --light-text: #212529; --light-card-bg: #ffffff; --light-border: #dee2e6; --light-primary: #007bff; --light-header-bg: rgba(255, 255, 255, 0.85);
    --dark-bg: #1a1a1a; --dark-text: #e9ecef; --dark-card-bg: #2c2c2c; --dark-border: #495057; --dark-primary: #58a6ff; --dark-header-bg: rgba(26, 26, 26, 0.85);
    --sepia-bg: #f4e8d5; --sepia-text: #5b4636; --sepia-border: #d3c5a9; --sepia-primary: #a0522d; --sepia-header-bg: rgba(244, 232, 213, 0.9);
    --sky-blue-bg: #e0f2fe; --sky-blue-text: #0c4a6e; --sky-blue-card-bg: #ffffff; --sky-blue-border: #bae6fd; --sky-blue-primary: #0369a1; --sky-blue-header-bg: rgba(224, 242, 254, 0.85);
    --light-green-bg: #f0fdf4; --light-green-text: #14532d; --light-green-card-bg: #ffffff; --light-green-border: #bbf7d0; --light-green-primary: #16a34a; --light-green-header-bg: rgba(240, 253, 244, 0.85);
    --font-serif: 'Noto Serif TC', serif; 
    --font-sans: 'Lato', sans-serif;
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.08); 
    --dark-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}
html { scroll-behavior: smooth; }
body { margin: 0; transition: background-color 0.4s ease, color 0.4s ease; font-family: var(--font-sans); }
body.light-mode { background-color: var(--light-bg); color: var(--light-text); }
body.dark-mode { background-color: var(--dark-bg); color: var(--dark-text); }
body.sepia-mode { background-color: var(--sepia-bg); color: var(--sepia-text); }
body.sky-blue-mode { background-color: var(--sky-blue-bg); color: var(--sky-blue-text); }
body.light-green-mode { background-color: var(--light-green-bg); color: var(--light-green-text); }

/* --- 通用頂部導航列 --- */
.main-header { position: sticky; top: 0; width: 100%; padding: 1rem 2rem; display: flex; justify-content: space-between; align-items: center; backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); z-index: 1000; border-bottom: 1px solid; box-sizing: border-box; }
.light-mode .main-header { background-color: var(--light-header-bg); border-color: var(--light-border); }
.dark-mode .main-header { background-color: var(--dark-header-bg); border-color: var(--dark-border); }
.sepia-mode .main-header { background-color: var(--sepia-header-bg); border-color: var(--sepia-border); }
.sky-blue-mode .main-header { background-color: var(--sky-blue-header-bg); border-color: var(--sky-blue-border); }
.light-green-mode .main-header { background-color: var(--light-green-header-bg); border-color: var(--light-green-border); }
.novel-title { font-family: var(--font-serif); font-weight: 700; font-size: 1.5rem; }
#theme-toggle-btn { background: none; border: none; cursor: pointer; font-size: 1.5rem; padding: 5px; color: inherit; }

/* --- 主頁 (index.html) 專屬樣式 --- */
.hero-section { 
    text-align: center; 
    padding: 6rem 2rem; 
    background-size: cover; 
    background-position: center; 
    color: white; 
    position: relative; 
    display: flex; 
    flex-direction: column; 
    justify-content: center; 
    align-items: center; 
    min-height: 50vh; 
    /* *** 關鍵修正：直接讀取您資料夾中的 background.jpg *** */
    background-image: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('background.jpg'); 
}
.hero-title { font-family: var(--font-serif); font-size: 3.5rem; font-weight: 700; margin: 0; text-shadow: 2px 2px 10px rgba(0,0,0,0.7); }
.hero-tagline { font-size: 1.25rem; margin-top: 1rem; max-width: 600px; font-weight: 300; text-shadow: 1px 1px 5px rgba(0,0,0,0.7); }
.main-content { max-width: 1100px; margin: -80px auto 0 auto; padding: 2rem; position: relative; z-index: 10; }
.content-card { padding: 2.5rem; border-radius: 12px; margin-bottom: 2rem; transition: background-color 0.4s ease, box-shadow 0.3s ease; }
.light-mode .content-card { background-color: var(--light-card-bg); box-shadow: var(--shadow); }
.dark-mode .content-card { background-color: var(--dark-card-bg); box-shadow: var(--dark-shadow); }
.sepia-mode .content-card { background-color: var(--sepia-bg); box-shadow: var(--shadow); }
.sky-blue-mode .content-card { background-color: var(--sky-blue-card-bg); box-shadow: var(--shadow); }
.light-green-mode .content-card { background-color: var(--light-green-card-bg); box-shadow: var(--shadow); }
.section-title { font-family: var(--font-serif); font-size: 2rem; margin-top: 0; margin-bottom: 1.5rem; border-bottom: 2px solid; padding-bottom: 0.5rem; }
.light-mode .section-title { border-color: var(--light-primary); }
.dark-mode .section-title { border-color: var(--dark-primary); }
.sepia-mode .section-title { border-color: var(--sepia-primary); }
.sky-blue-mode .section-title { border-color: var(--sky-blue-primary); }
.light-green-mode .section-title { border-color: var(--light-green-primary); }
.synopsis p { font-family: var(--font-serif); font-size: 1.1rem; line-height: 1.8; }
.cta-buttons { display: flex; gap: 1rem; margin-top: 2rem; flex-wrap: wrap; }
.btn { text-decoration: none; padding: 0.8rem 1.8rem; border-radius: 50px; font-weight: 700; font-size: 1rem; transition: all 0.3s ease; display: inline-flex; align-items: center; gap: 0.5rem; border: 1px solid transparent; }
.btn-primary { color: white; }
.light-mode .btn-primary { background-color: var(--light-primary); }
.dark-mode .btn-primary { background-color: var(--dark-primary); color: var(--dark-bg); }
.sepia-mode .btn-primary { background-color: var(--sepia-primary); color: white; }
.sky-blue-mode .btn-primary { background-color: var(--sky-blue-primary); color: white; }
.light-green-mode .btn-primary { background-color: var(--light-green-primary); color: white; }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 6px 20px rgba(0, 123, 255, 0.3); }
.dark-mode .btn-primary:hover { box-shadow: 0 6px 20px rgba(88, 166, 255, 0.3); }
.sepia-mode .btn-primary:hover { box-shadow: 0 6px 20px rgba(160, 82, 45, 0.3); }
.sky-blue-mode .btn-primary:hover { box-shadow: 0 6px 20px rgba(3, 105, 161, 0.3); }
.light-green-mode .btn-primary:hover { box-shadow: 0 6px 20px rgba(22, 163, 74, 0.3); }
.btn-secondary { color: inherit; }
.light-mode .btn-secondary { border-color: var(--light-primary); color: var(--light-primary); }
.dark-mode .btn-secondary { border-color: var(--dark-primary); color: var(--dark-primary); }
.sepia-mode .btn-secondary { border-color: var(--sepia-primary); color: var(--sepia-primary); }
.sky-blue-mode .btn-secondary { border-color: var(--sky-blue-primary); color: var(--sky-blue-primary); }
.light-green-mode .btn-secondary { border-color: var(--light-green-primary); color: var(--light-green-primary); }
.light-mode .btn-secondary:hover { background-color: var(--light-primary); color: white; }
.dark-mode .btn-secondary:hover { background-color: var(--dark-primary); color: var(--dark-bg); }
.sepia-mode .btn-secondary:hover { background-color: var(--sepia-primary); color: white; }
.sky-blue-mode .btn-secondary:hover { background-color: var(--sky-blue-primary); color: white; }
.light-green-mode .btn-secondary:hover { background-color: var(--light-green-primary); color: white; }
#continue-reading-btn { display: none; }
.chapter-list { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.5rem; }
.chapter-item { border-radius: 8px; transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.3s; }
.light-mode .chapter-item { border: 1px solid var(--light-border); }
.dark-mode .chapter-item { border: 1px solid var(--dark-border); }
.sepia-mode .chapter-item { border: 1px solid var(--sepia-border); }
.sky-blue-mode .chapter-item { border: 1px solid var(--sky-blue-border); }
.light-green-mode .chapter-item { border: 1px solid var(--light-green-border); }
.chapter-item:hover { transform: translateY(-5px); }
.light-mode .chapter-item:hover { box-shadow: var(--shadow); }
.dark-mode .chapter-item:hover { box-shadow: var(--dark-shadow); }
.sepia-mode .chapter-item:hover { box-shadow: var(--shadow); }
.sky-blue-mode .chapter-item:hover { box-shadow: var(--shadow); }
.light-green-mode .chapter-item:hover { box-shadow: var(--shadow); }
.chapter-item.is-last-read { border-width: 2px; }
.light-mode .chapter-item.is-last-read { border-color: var(--light-primary); }
.dark-mode .chapter-item.is-last-read { border-color: var(--dark-primary); }
.sepia-mode .chapter-item.is-last-read { border-color: var(--sepia-primary); }
.sky-blue-mode .chapter-item.is-last-read { border-color: var(--sky-blue-primary); }
.light-green-mode .chapter-item.is-last-read { border-color: var(--light-green-primary); }
.chapter-link { display: block; padding: 1.2rem 1.5rem; text-decoration: none; color: inherit; font-family: var(--font-serif); font-size: 1.1rem; display: flex; justify-content: space-between; align-items: center; }
.chapter-title { flex-grow: 1; }
.chapter-date { font-size: 0.85rem; font-family: var(--font-sans); opacity: 0.7; margin-left: 1rem; flex-shrink: 0; }
.main-footer { text-align: center; padding: 2rem; margin-top: 2rem; font-size: 0.9rem; opacity: 0.7; }
#back-to-top-btn { position: fixed; bottom: 20px; right: 20px; width: 50px; height: 50px; border-radius: 50%; border: none; cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; z-index: 100; opacity: 0; visibility: hidden; transition: opacity 0.3s, visibility 0.3s; }
#back-to-top-btn.show { opacity: 1; visibility: visible; }
.light-mode #back-to-top-btn { background-color: var(--light-text); color: var(--light-bg); }
.dark-mode #back-to-top-btn { background-color: var(--dark-text); color: var(--dark-bg); }
.sepia-mode #back-to-top-btn { background-color: var(--sepia-text); color: var(--sepia-bg); }
.sky-blue-mode #back-to-top-btn { background-color: var(--sky-blue-text); color: var(--sky-blue-bg); }
.light-green-mode #back-to-top-btn { background-color: var(--light-green-text); color: var(--light-green-bg); }

/* --- 章節頁面 (chapter-*.html) 專屬樣式 --- */
.reader-header { position: sticky; top: 0; display: flex; justify-content: space-between; align-items: center; padding: 1rem 1.5rem; border-bottom: 1px solid; backdrop-filter: blur(10px); z-index: 100; }
.sepia-mode .reader-header { background-color: var(--sepia-header-bg); border-color: var(--sepia-border); }
.sky-blue-mode .reader-header { background-color: var(--sky-blue-header-bg); border-color: var(--sky-blue-border); }
.light-green-mode .reader-header { background-color: var(--light-green-header-bg); border-color: var(--light-green-border); }
.header-nav-link { text-decoration: none; font-size: 0.9rem; padding: 0.5rem 1rem; border-radius: 20px; transition: background-color 0.2s; }
.light-mode .header-nav-link { color: var(--light-primary); }
.dark-mode .header-nav-link { color: var(--dark-primary); }
.sepia-mode .header-nav-link { color: var(--sepia-primary); }
.sky-blue-mode .header-nav-link { color: var(--sky-blue-primary); }
.light-green-mode .header-nav-link { color: var(--light-green-primary); }
.header-nav-link:hover { background-color: rgba(0,0,0,0.05); }
.dark-mode .header-nav-link:hover, .sepia-mode .header-nav-link:hover { background-color: rgba(0,0,0,0.1); }
.reader-chapter-title { font-size: 1rem; font-weight: 600; text-align: center; margin: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.header-controls { display: flex; align-items: center; gap: 1rem; }
.control-btn { background: none; border: none; cursor: pointer; font-size: 1.2rem; padding: 5px; color: inherit; }
.settings-panel { position: fixed; top: 70px; right: 20px; padding: 1.5rem; border-radius: 8px; z-index: 101; transition: opacity 0.3s, transform 0.3s; transform: translateY(-10px); opacity: 0; visibility: hidden; }
.settings-panel.show { transform: translateY(0); opacity: 1; visibility: visible; }
.sepia-mode .settings-panel { background-color: #fff9f0; box-shadow: 0 4px 15px rgba(0,0,0,0.1); }
.setting-group { margin-bottom: 1rem; }
.setting-group:last-child { margin-bottom: 0; }
.setting-group h4 { margin: 0 0 0.8rem 0; font-size: 0.9rem; opacity: 0.8; }
.setting-options { display: flex; gap: 0.5rem; }
.setting-options button { padding: 0.5rem 1rem; border: 1px solid; border-radius: 20px; cursor: pointer; background-color: transparent; color: inherit; }
.setting-options button.active { color: white; }
.light-mode .setting-options button.active { background-color: var(--light-primary); border-color: var(--light-primary); }
.dark-mode .setting-options button.active { background-color: var(--dark-primary); border-color: var(--dark-primary); color: var(--dark-bg); }
.sepia-mode .setting-options button.active { background-color: var(--sepia-primary); border-color: var(--sepia-primary); }
.sky-blue-mode .setting-options button.active { background-color: var(--sky-blue-primary); border-color: var(--sky-blue-primary); }
.light-green-mode .setting-options button.active { background-color: var(--light-green-primary); border-color: var(--light-green-primary); }
.reader-content-area { padding: 2rem 1rem 1rem 1rem; }
.reader-article { max-width: 42rem; margin: 0 auto; font-family: var(--font-serif); line-height: 1.9; transition: font-size 0.3s; }
.font-size-small { font-size: 1.0rem; }
.font-size-medium { font-size: 1.2rem; }
.font-size-large { font-size: 1.4rem; }
.reader-article h1 { font-size: 2.5em; text-align: center; margin-bottom: 2.5rem; }
.reader-article p { margin-bottom: 1.6rem; text-indent: 2em; }
.share-section { max-width: 42rem; margin: 3rem auto 1rem auto; text-align: center; padding: 1rem; }
.share-title { font-size: 0.9rem; font-weight: bold; opacity: 0.7; margin-bottom: 1rem; }
.share-buttons { display: flex; justify-content: center; gap: 1rem; }
.share-btn { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border-radius: 50%; text-decoration: none; color: white; font-size: 1.2rem; transition: transform 0.2s ease; }
.share-btn:hover { transform: scale(1.1); }
.share-btn.facebook { background-color: #1877F2; }
.share-btn.twitter { background-color: #1DA1F2; }
.share-btn.line { background-color: #00B900; }
.share-btn.copy-link { background-color: #7f8c8d; }
.reader-footer-nav { display: flex; justify-content: space-between; max-width: 42rem; margin: 2rem auto; padding: 0 1rem; }
.nav-button { text-decoration: none; padding: 0.8rem 2rem; border-radius: 50px; font-weight: 700; transition: all 0.3s ease; border: 1px solid; }
.light-mode .nav-button { background-color: var(--light-primary); color: white; border-color: var(--light-primary); }
.dark-mode .nav-button { background-color: var(--dark-primary); color: var(--dark-bg); border-color: var(--dark-primary); }
.sepia-mode .nav-button { background-color: var(--sepia-primary); color: white; border-color: var(--sepia-primary); }
.sky-blue-mode .nav-button { background-color: var(--sky-blue-primary); color: white; border-color: var(--sky-blue-primary); }
.light-green-mode .nav-button { background-color: var(--light-green-primary); color: white; border-color: var(--light-green-primary); }
.nav-button.disabled { pointer-events: none; opacity: 0.5; }
.comment-section { max-width: 42rem; margin: 4rem auto; padding: 0 1rem; }
.comment-section-title { text-align: center; font-family: var(--font-serif); font-size: 1.8rem; margin-bottom: 2rem; opacity: 0.9; }

/* --- 響應式設計 --- */
@media (max-width: 768px) { 
    .main-header { padding: 0.8rem 1rem; } 
    .novel-title { font-size: 1.2rem; } 
    .hero-title { font-size: 2.5rem; } 
    .hero-tagline { font-size: 1rem; } 
    .main-content { padding: 1rem; margin-top: -60px; } 
    .content-card { padding: 1.5rem; } 
    .section-title { font-size: 1.5rem; } 
    .cta-buttons { flex-direction: column; } 
    .btn { width: 100%; text-align: center; justify-content: center;} 
    .chapter-list { grid-template-columns: 1fr; }
    .reader-header { padding: 0.8rem 1rem; } 
    .reader-chapter-title { font-size: 0.9rem; } 
    .reader-article { font-size: 1.1rem; } 
    .reader-article h1 { font-size: 2rem; } 
    .font-size-small { font-size: 1rem; } 
    .font-size-medium { font-size: 1.1rem; } 
    .font-size-large { font-size: 1.2rem; } 
}

/* --- 作者頁面 (author.html) 專屬樣式 --- */
.author-page-content {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 80vh;
    padding: 4rem 2rem;
}
.author-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 700px;
    padding: 3rem;
    border-radius: 16px;
}
.light-mode .author-card {
    background-color: var(--light-card-bg);
    box-shadow: var(--shadow);
}
.dark-mode .author-card {
    background-color: var(--dark-card-bg);
    box-shadow: var(--dark-shadow);
}
.sepia-mode .author-card {
    background-color: var(--sepia-bg);
    box-shadow: var(--shadow);
}
.sky-blue-mode .author-card {
    background-color: var(--sky-blue-card-bg);
    box-shadow: var(--shadow);
}
.light-green-mode .author-card {
    background-color: var(--light-green-card-bg);
    box-shadow: var(--shadow);
}
.author-avatar {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    overflow: hidden;
    margin-bottom: 2rem;
    border: 5px solid;
}
.light-mode .author-avatar { border-color: var(--light-primary); }
.dark-mode .author-avatar { border-color: var(--dark-primary); }
.sepia-mode .author-avatar { border-color: var(--sepia-primary); }
.sky-blue-mode .author-avatar { border-color: var(--sky-blue-primary); }
.light-green-mode .author-avatar { border-color: var(--light-green-primary); }
.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.author-name {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    margin: 0 0 1rem 0;
}
.author-bio {
    font-size: 1.1rem;
    line-height: 1.8;
    opacity: 0.9;
    margin-bottom: 2rem;
}
.author-social-links {
    display: flex;
    gap: 1.5rem;
}
.author-social-links a {
    font-size: 1.5rem;
    text-decoration: none;
    transition: transform 0.2s ease, color 0.2s;
}
.light-mode .author-social-links a { color: #555; }
.dark-mode .author-social-links a { color: #ccc; }
.sepia-mode .author-social-links a { color: #555; }
.sky-blue-mode .author-social-links a { color: #555; }
.light-green-mode .author-social-links a { color: #555; }
.author-social-links a:hover {
    transform: scale(1.2);
}
.light-mode .author-social-links a:hover { color: var(--light-primary); }
.dark-mode .author-social-links a:hover { color: var(--dark-primary); }
.sepia-mode .author-social-links a:hover { color: var(--sepia-primary); }
.sky-blue-mode .author-social-links a:hover { color: var(--sky-blue-primary); }
.light-green-mode .author-social-links a:hover { color: var(--light-green-primary); }

@media (max-width: 768px) {
    .author-page-content { padding: 2rem 1rem; }
    .author-card { padding: 2rem; }
    .author-name { font-size: 2rem; }
}

/* ===== 遊戲指南頁面樣式 ===== */
.guide-page-content {
    padding: 2rem 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

.guide-page-content.font-size-small { font-size: 1.0rem; }
.guide-page-content.font-size-medium { font-size: 1.2rem; }
.guide-page-content.font-size-large { font-size: 1.4rem; }

.guide-intro {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.guide-note {
    background-color: var(--card-bg);
    border-left: 4px solid var(--primary-color);
    padding: 1rem;
    margin: 1.5rem 0;
    border-radius: 8px;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.guide-note i {
    color: var(--primary-color);
    font-size: 1.25rem;
    margin-top: 0.1rem;
}

.guide-note-small {
    font-size: 0.9rem;
    color: #666;
    text-align: center;
    margin-top: 1rem;
}

.guide-section {
    margin-bottom: 3rem;
}

.guide-section .section-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
}

.guide-section .section-title i {
    color: var(--primary-color);
}

.guide-list {
    list-style-type: none;
    padding-left: 0;
    margin: 1.5rem 0;
}

.guide-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.guide-link {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s;
}

.guide-link:hover {
    text-decoration: underline;
}

/* 角色圖鑑 */
.character-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.character-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

.character-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

.character-avatar {
    width: 80px;
    height: 80px;
    background-color: #f0f0f0;
    border-radius: 50%;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #999;
    border: 3px solid var(--primary-color);
}

.dark-mode .character-avatar {
    background-color: #333;
    color: #bbb;
}

/* 系統解析 */
.system-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.system-item {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    border-left: 4px solid var(--primary-color);
}

.system-item h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    font-size: 1.2rem;
}

.system-item h3 i {
    color: var(--primary-color);
}

/* 新手攻略步驟 */
.guide-steps {
    list-style-type: none;
    counter-reset: step-counter;
    padding-left: 0;
}

.guide-steps li {
    counter-increment: step-counter;
    padding: 1rem 1rem 1rem 3.5rem;
    margin-bottom: 1rem;
    background-color: var(--card-bg);
    border-radius: 12px;
    position: relative;
    border-left: 4px solid var(--primary-color);
}

.guide-steps li::before {
    content: counter(step-counter);
    position: absolute;
    left: -1rem;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--primary-color);
    color: white;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.1rem;
}

/* 進階技巧卡片 */
.tip-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.tip-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    border-top: 4px solid var(--primary-color);
}

.tip-card h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    font-size: 1.2rem;
}

.tip-card h3 i {
    color: var(--primary-color);
}

/* 最新消息 */
.news-list {
    margin-bottom: 2rem;
}

.news-item {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--primary-color);
}

.news-date {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 0.5rem;
}

.external-links ul {
    list-style-type: none;
    padding-left: 0;
    margin: 1rem 0;
}

.external-links li {
    padding: 0.5rem 0;
}

/* 貢獻內容區塊 */
.contribute-box {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    margin-top: 1.5rem;
    border: 2px dashed var(--primary-color);
}

.contribute-box h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.contribute-box h3 i {
    color: var(--primary-color);
}

.contribute-box ol {
    padding-left: 1.5rem;
    margin: 1rem 0;
}

.contribute-box li {
    margin-bottom: 0.5rem;
}

/* 響應式設計 */
@media (max-width: 768px) {
    .guide-page-content {
        padding: 1.5rem 1rem;
    }
    
    .guide-section .section-title {
        font-size: 1.5rem;
    }
    
    .character-grid,
    .system-list,
    .tip-grid {
        grid-template-columns: 1fr;
    }
    
    .guide-steps li {
        padding: 1rem 1rem 1rem 2.5rem;
    }
    
    .guide-steps li::before {
        left: -0.5rem;
        width: 2rem;
        height: 2rem;
        font-size: 1rem;
    }
}

.header-subtitle {
    font-size: 1rem;
    font-weight: normal;
    color: #666;
    margin-left: 0.5rem;
}

.dark-mode .header-subtitle {
    color: #bbb;
}

/* ===== 資源卡片樣式 ===== */
.resource-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 1.5rem;
}

.resource-card {
    background-color: var(--card-bg);
    border-radius: 16px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    box-shadow: 0 6px 16px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
    border-top: 4px solid var(--primary-color);
}

.resource-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.12);
}

.resource-card h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    font-size: 1.4rem;
    color: var(--heading-color);
}

.resource-card h3 i {
    color: var(--primary-color);
    font-size: 1.3rem;
}

.resource-card p {
    flex-grow: 1;
    margin-bottom: 1.5rem;
    line-height: 1.6;
    color: var(--text-color);
}

.resource-card .btn {
    align-self: flex-start;
    margin-top: auto;
}

/* ===== 影片攻略區塊樣式 ===== */
.video-guide-container {
    margin: 2rem 0;
}

.video-embed-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 比例 */
    height: 0;
    overflow: hidden;
    max-width: 100%;
    background: #000;
    border-radius: 12px;
    margin: 1.5rem 0;
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

.video-embed-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
    border-radius: 12px;
}

.video-description {
    margin-top: 1.5rem;
    padding: 1.5rem;
    background-color: var(--card-bg);
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
}

.video-description h4 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    font-size: 1.2rem;
    color: var(--heading-color);
}

.video-description h4 i {
    color: var(--primary-color);
}

.video-description p {
    line-height: 1.6;
    margin-bottom: 1rem;
}

.video-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1.5rem;
}

.video-link-btn {
    /* 覆蓋 .btn 的圓角為方形圓角 */
    border-radius: 8px !important;
    /* 調整 padding 以匹配設計 */
    padding: 0.75rem 1.25rem !important;
    /* 確保文字粗細一致 */
    font-weight: 600;
}

/* 移除 .btn 的 hover 動畫並使用我們自己的 */
.video-link-btn:hover {
    transform: translateY(-2px);
    text-decoration: none;
}

@media (max-width: 768px) {
    .resource-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .resource-card {
        padding: 1.5rem;
    }
    
    .video-links {
        flex-direction: column;
    }
    
    .video-link-btn {
        justify-content: center;
    }
}

/* ===== 章節分享區域置中 ===== */
.share-section {
    max-width: 42rem;
    margin: 3rem auto;
    text-align: center;
}

.reader-footer-nav {
    max-width: 42rem;
    margin: 2rem auto;
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.comment-section {
    max-width: 42rem;
    margin: 4rem auto;
}

/* ===== 遊戲攻略頁面樣式 ===== */
.guide-page-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}

.guide-page-content h1 {
    color: var(--light-primary);
    text-align: center;
    border-bottom: 3px solid var(--light-primary);
    padding-bottom: 15px;
    font-size: 2.2em;
    font-family: var(--font-serif);
}

.guide-page-content h2 {
    color: var(--light-secondary);
    border-left: 5px solid var(--light-secondary);
    padding-left: 15px;
    margin-top: 30px;
    font-size: 1.6em;
    font-family: var(--font-serif);
}

.guide-page-content h3 {
    color: #2ecc71;
    margin-top: 25px;
    font-size: 1.3em;
}

.guide-page-content .author {
    text-align: center;
    color: var(--light-primary);
    font-weight: bold;
    margin-bottom: 20px;
}

.guide-page-content .update-time {
    text-align: center;
    color: var(--light-muted);
    font-style: italic;
    margin-bottom: 30px;
}

.guide-page-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background: var(--light-card-bg);
}

.guide-page-content th, .guide-page-content td {
    border: 1px solid var(--light-border);
    padding: 12px;
    text-align: left;
}

.guide-page-content th {
    background: var(--light-header-bg);
    color: var(--light-secondary);
}

.guide-page-content tr:nth-child(even) {
    background: var(--light-bg);
}

.guide-page-content .highlight {
    background: rgba(243, 156, 18, 0.15);
    padding: 15px;
    border-left: 4px solid #f39c12;
    margin: 15px 0;
    border-radius: 5px;
}

.guide-page-content .warning {
    background: rgba(231, 76, 60, 0.15);
    padding: 15px;
    border-left: 4px solid #e74c3c;
    margin: 15px 0;
    border-radius: 5px;
}

.guide-page-content .tip {
    background: rgba(46, 204, 113, 0.15);
    padding: 15px;
    border-left: 4px solid #2ecc71;
    margin: 15px 0;
    border-radius: 5px;
}

.guide-page-content ul, .guide-page-content ol {
    padding-left: 25px;
}

.guide-page-content li {
    margin: 8px 0;
}

.guide-page-content .element-fire { color: #e74c3c; }
.guide-page-content .element-sword { color: #3498db; }
.guide-page-content .element-thunder { color: #9b59b6; }

/* --- AI News 專屬樣式 --- */
.news-item {
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    border-left: 4px solid;
}
.light-mode .news-item { background-color: var(--light-card-bg); border-color: var(--light-primary); }
.dark-mode .news-item { background-color: var(--dark-card-bg); border-color: var(--dark-primary); }
.sepia-mode .news-item { background-color: var(--sepia-bg); border-color: var(--sepia-primary); }
.sky-blue-mode .news-item { background-color: var(--sky-blue-card-bg); border-color: var(--sky-blue-primary); }
.light-green-mode .news-item { background-color: var(--light-green-card-bg); border-color: var(--light-green-primary); }

.news-item h3 { margin-top: 0; font-family: var(--font-serif); }
.news-date { font-size: 0.85rem; opacity: 0.7; margin-bottom: 1rem; }

.debate-section { margin-top: 2rem; padding: 1.5rem; border-radius: 12px; }
.light-mode .debate-section { background-color: var(--light-card-bg); box-shadow: var(--shadow); }
.dark-mode .debate-section { background-color: var(--dark-card-bg); box-shadow: var(--dark-shadow); }

.expert-opinion { padding: 1rem; margin-bottom: 1rem; border-radius: 8px; }
.light-mode .expert-opinion { background-color: var(--light-bg); }
.dark-mode .expert-opinion { background-color: var(--dark-bg); }
.sepia-mode .expert-opinion { background-color: var(--sepia-bg); }
.sky-blue-mode .expert-opinion { background-color: var(--sky-blue-bg); }
.light-green-mode .expert-opinion { background-color: var(--light-green-bg); }

.expert-opinion h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.expert-opinion p { margin: 0.3rem 0; line-height: 1.6; }

.conclusion { padding: 1.2rem; border-radius: 8px; margin-top: 1.5rem; font-weight: 600; }
.light-mode .conclusion { background-color: #e3f2fd; border: 2px solid #2196f3; }
.dark-mode .conclusion { background-color: #1e3a5f; border: 2px solid #64b5f6; }