:root {
    --bili-pink: #FB7299;
    --bili-blue: #23ADE5;
    --bili-bg: #F4F5F7;
    --text-main: #18191C;
    --text-secondary: #9499A0;
    --white: #FFFFFF;
    --card-bg: #FFFFFF;
    --header-bg: rgba(255, 255, 255, 0.8);
    --border-color: #E3E5E7;
    --card-shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
    --hover-shadow: 0 12px 32px rgba(251, 114, 153, 0.15);
    --border-radius: 16px; /* 更圆润的边角 */
    --transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    --input-bg: #F1F2F3;
    --toolbar-bg: rgba(251, 252, 253, 0.8);
    --modal-overlay: rgba(0, 0, 0, 0.6);
    --nav-active-bg: #FFF0F5;
    --nav-hover-bg: #F6F7F8;
    --icon-box-bg: #f6f7f8;
}

/* Dark Theme Variables */
.dark-theme {
    --bili-bg: #111111;
    --text-main: #E3E5E7;
    --text-secondary: #9499A0;
    --white: #18191C;
    --card-bg: #18191C;
    --header-bg: rgba(24, 25, 28, 0.8);
    --border-color: #313233;
    --card-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    --hover-shadow: 0 12px 32px rgba(251, 114, 153, 0.2);
    --input-bg: #232526;
    --toolbar-bg: rgba(28, 29, 31, 0.8);
    --modal-overlay: rgba(0, 0, 0, 0.8);
    --nav-active-bg: #2D1E22;
    --nav-hover-bg: #232526;
    --icon-box-bg: #232526;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bili-bg);
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(251, 114, 153, 0.03) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(35, 173, 229, 0.03) 0%, transparent 20%),
        url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M12 16H28V26H12V16Z' fill='%23FB7299' fill-opacity='0.08'/%3E%3Cpath d='M14 12L17 15' stroke='%23FB7299' stroke-opacity='0.08' stroke-width='2'/%3E%3Cpath d='M26 12L23 15' stroke='%23FB7299' stroke-opacity='0.08' stroke-width='2'/%3E%3C/svg%3E");
    color: var(--text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    transition: background-color 0.3s, color 0.3s;
    min-height: 100vh;
}

/* Header Glassmorphism */
.main-header {
    background: var(--header-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 0.8rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 16px rgba(0,0,0,0.02);
    position: sticky;
    top: 0;
    z-index: 100;
    width: 100%;
    border-bottom: 1px solid var(--border-color);
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 14px;
    cursor: pointer;
}

.bili-logo {
    width: 42px;
    height: 42px;
    filter: drop-shadow(0 4px 8px rgba(251, 114, 153, 0.2));
    transition: var(--transition);
}

.logo-area:hover .bili-logo {
    transform: rotate(10deg) scale(1.1);
}

.logo-area:active .bili-logo {
    transform: scale(0.9);
}


.logo-area h1 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.art-title {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    line-height: 1.1;
}

.gradient-text {
    background: linear-gradient(90deg, var(--bili-pink), #FF85AD, var(--bili-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.slogan {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
    letter-spacing: 1px;
}

/* Welcome Hero */
.welcome-hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 40px 20px;
}

.hero-content {
    max-width: 1000px;
    width: 100%;
    margin-bottom: 60px;
}

.hero-icon-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
}

.hero-item {
    background: var(--card-bg);
    padding: 32px 24px;
    border-radius: 20px;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.hero-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--hover-shadow);
    border-color: var(--bili-pink);
}

.hero-icon-box {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: var(--transition);
}

.hero-icon-box svg {
    transition: transform 0.3s;
}

.hero-item:hover .hero-icon-box svg {
    transform: scale(1.1);
}

.hero-icon-box.pink { background: rgba(251, 114, 153, 0.1); color: var(--bili-pink); }
.hero-icon-box.blue { background: rgba(35, 173, 229, 0.1); color: var(--bili-blue); }
.hero-icon-box.purple { background: rgba(155, 81, 224, 0.1); color: #9b51e0; }
.hero-icon-box.orange { background: rgba(255, 160, 0, 0.1); color: #ffa000; }


.hero-item h4 {
    margin-bottom: 12px;
    font-size: 1.1rem;
}

.hero-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Animations */
.animate-up {
    opacity: 0;
    animation: fadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

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

@keyframes tada {
    from { transform: scale3d(1, 1, 1); }
    10%, 20% { transform: scale3d(0.9, 0.9, 0.9) rotate3d(0, 0, 1, -3deg); }
    30%, 50%, 70%, 90% { transform: scale3d(1.1, 1.1, 1.1) rotate3d(0, 0, 1, 3deg); }
    40%, 60%, 80% { transform: scale3d(1.1, 1.1, 1.1) rotate3d(0, 0, 1, -3deg); }
    to { transform: scale3d(1, 1, 1); }
}

/* Initial Recommendations (Scrolling Version) */
.init-recommendations {
    width: 100%;
    max-width: 1200px;
    position: relative;
}

.recommendations-container {
    position: relative;
    padding: 10px 0;
}

/* Add fade edge effect */
.recommendations-container::before,
.recommendations-container::after {
    content: '';
    position: absolute;
    top: 0;
    width: 60px;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.recommendations-container::before {
    left: 0;
    background: linear-gradient(to right, var(--bili-bg), transparent);
}

.recommendations-container::after {
    right: 0;
    background: linear-gradient(to left, var(--bili-bg), transparent);
}

.init-related-scroll {
    display: flex;
    gap: 24px;
    overflow-x: auto;
    padding: 20px 40px;
    scroll-behavior: smooth;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none;  /* IE and Edge */
}

.init-related-scroll::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

.init-related-scroll .related-card {
    flex: 0 0 280px; /* Fixed width for cards in scroll */
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
    padding: 12px;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
}

.init-related-scroll .related-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--hover-shadow);
    border-color: var(--bili-pink);
}

.init-related-scroll .related-cover-wrapper {
    width: 100%;
    height: 158px;
    border-radius: 8px;
}

.init-related-scroll .related-content {
    margin-top: 12px;
}

.init-related-scroll .related-title {
    height: 40px;
    font-size: 14px;
    margin-bottom: 8px;
}





.badge {
    background: linear-gradient(135deg, #FB7299 0%, #FF9EB8 100%);
    color: white;
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 6px rgba(251, 114, 153, 0.3);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.github-link svg path {
    fill: var(--text-secondary);
    transition: var(--transition);
}

.github-link:hover svg path {
    fill: var(--text-main);
}

/* Buttons */
button {
    cursor: pointer;
    border: none;
    outline: none;
    font-family: inherit;
    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--bili-pink) 0%, #FF85AD 100%);
    color: white;
    padding: 0 32px;
    height: 54px;
    border-radius: 18px;
    font-weight: 600;
    font-size: 1.05rem;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 8px 20px rgba(251, 114, 153, 0.3);
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 12px 28px rgba(251, 114, 153, 0.4);
}

.btn-primary:active {
    transform: translateY(1px) scale(0.98);
}

/* Pulse animation for analyzeBtn */
@keyframes pulse-pink {
    0% { box-shadow: 0 0 0 0 rgba(251, 114, 153, 0.4); }
    70% { box-shadow: 0 0 0 15px rgba(251, 114, 153, 0); }
    100% { box-shadow: 0 0 0 0 rgba(251, 114, 153, 0); }
}

#analyzeBtn:not(:disabled) {
    animation: pulse-pink 2s infinite;
}

.btn-secondary {
    background-color: var(--white);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 8px 18px;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

/* Bili-style Login Badge */
#loginBtn {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 6px 14px;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

#loginBtn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(251, 114, 153, 0.15);
    border-color: var(--bili-pink);
    color: var(--bili-pink);
}

#loginBtn.logged-in {
    background: linear-gradient(135deg, rgba(251, 114, 153, 0.05) 0%, rgba(35, 173, 229, 0.05) 100%);
    border-color: var(--bili-pink);
    color: var(--bili-pink);
}

#loginBtn.logged-in:hover {
    background: linear-gradient(135deg, rgba(251, 114, 153, 0.1) 0%, rgba(35, 173, 229, 0.1) 100%);
}

.dark-theme #loginBtn {
    background: #232526;
    border-color: #313233;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.dark-theme #loginBtn:hover {
    border-color: var(--bili-pink);
    box-shadow: 0 4px 12px rgba(251, 114, 153, 0.2);
}

.dark-theme #loginBtn.logged-in {
    background: linear-gradient(135deg, rgba(251, 114, 153, 0.1) 0%, rgba(35, 173, 229, 0.1) 100%);
    border-color: var(--bili-pink);
}

.user-avatar-placeholder {
    width: 24px;
    height: 24px;
    background: var(--nav-active-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bili-pink);
}

.dark-theme .user-avatar-placeholder {
    background: #2D1E22;
}

.user-badge-container {
    display: flex;
    align-items: center;
    gap: 8px;
}

.user-face-circle {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    overflow: hidden;
    background: var(--nav-active-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    border: 1.5px solid transparent;
}

.user-face-circle:hover {
    transform: scale(1.1);
    border-color: var(--bili-pink);
    box-shadow: 0 0 10px rgba(251, 114, 153, 0.4);
}

.user-face-circle img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-name-text {
    cursor: pointer;
    transition: var(--transition);
}

.user-name-text:hover {
    color: var(--text-secondary);
    opacity: 0.8;
}

.btn-secondary:hover {
    border-color: var(--bili-blue);
    color: var(--bili-blue);
    background-color: var(--nav-hover-bg);
}

/* Search Section */
.search-section {
    padding: 60px 20px 40px;
    display: flex;
    justify-content: center;
}

.search-box-container {
    width: 100%;
    max-width: 1400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.search-box {
    display: flex;
    width: 100%;
    max-width: 1400px;
    background: var(--card-bg) !important; /* 强制使用变量 */
    padding: 10px;
    border-radius: 24px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
    border: 2px solid var(--border-color); /* 增加默认边框避免视觉误差 */
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.dark-theme .search-box {
    background: var(--card-bg) !important;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    border-color: var(--border-color);
}

.search-box:focus-within {
    transform: translateY(-4px);
    border-color: var(--bili-pink);
    box-shadow: 0 20px 50px rgba(251, 114, 153, 0.12);
}

#videoUrl {
    flex: 1;
    border: none;
    padding: 0 24px;
    font-size: 1.1rem;
    color: var(--text-main) !important;
    background: transparent !important;
    outline: none;
    -webkit-box-shadow: 0 0 0px 1000px transparent inset !important; /* 尝试覆盖 Webkit 自动填充 */
}

/* 彻底禁用 Webkit 自动填充的背景色 */
#videoUrl:-webkit-autofill,
#videoUrl:-webkit-autofill:hover, 
#videoUrl:-webkit-autofill:focus, 
#videoUrl:-webkit-autofill:active {
    -webkit-transition: background-color 50000s ease-in-out 0s;
    transition: background-color 50000s ease-in-out 0s;
    -webkit-text-fill-color: var(--text-main) !important;
}

#videoUrl::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

.dark-theme #videoUrl::placeholder {
    color: #74777a;
}

.login-hint {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--white);
    padding: 10px 24px;
    border-radius: 50px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
    animation: slideInDown 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    max-width: fit-content;
}

.dark-theme .login-hint {
    background: #1C1D1F;
    border-color: #313233;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.login-hint p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0;
    font-weight: 400;
}

.login-hint strong {
    color: var(--bili-pink);
    font-weight: 600;
}

.login-hint a {
    color: var(--bili-blue);
    text-decoration: none;
    font-weight: 600;
    margin-left: 12px;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.login-hint a::after {
    content: '→';
    font-size: 1rem;
    transition: transform 0.3s;
}

.login-hint a:hover {
    color: var(--bili-pink);
}

.login-hint a:hover::after {
    transform: translateX(3px);
}

.hint-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: rgba(251, 114, 153, 0.1);
    color: var(--bili-pink);
    border-radius: 50%;
    font-size: 0.8rem;
}

.dark-theme .hint-icon {
    background: rgba(251, 114, 153, 0.2);
}

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

/* Loading State */
.loading-state {
    text-align: center;
    padding: 60px 20px;
}

.bili-tv-loading {
    width: 100px;
    height: 100px;
    margin: 0 auto 24px;
    position: relative;
    animation: tvFloat 3s ease-in-out infinite;
}

.bili-tv-svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 8px 16px rgba(251, 114, 153, 0.15));
}

@keyframes tvFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(2deg); }
}

.loading-bar-container {
    height: 6px;
    width: 60%;
    background: var(--input-bg);
    margin: -10px auto 0;
    border-radius: 3px;
    overflow: hidden;
    position: relative;
    z-index: 2;
}


.loading-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--bili-pink), #FF85AD);
    width: 0%;
    transition: width 0.4s ease;
    border-radius: 3px;
}

.loading-text {
    color: var(--text-main);
    font-weight: 500;
    font-size: 1.1rem;
    margin-bottom: 12px;
}

.streaming-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin: 10px 0 20px;
    padding: 8px 16px;
    background: var(--nav-active-bg);
    border-radius: 20px;
    color: var(--bili-pink);
    font-size: 0.9rem;
    font-weight: 600;
    animation: fadeIn 0.3s ease;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--bili-pink);
    border-radius: 50%;
    animation: pulse-pink 1.5s infinite;
}

.chunk-counter {
    background: var(--bili-pink);
    color: white;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.75rem;
    min-width: 20px;
    text-align: center;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

.loading-content-box {
    max-width: 500px;
    margin: 0 auto;
}

.loading-stepper {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 30px;
    padding: 20px;
    background: var(--card-bg);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
}

.step {
    display: flex;
    align-items: center;
    gap: 16px;
    opacity: 0.4;
    transition: var(--transition);
}

.step.active {
    opacity: 1;
    transform: scale(1.05);
}

.step.completed {
    opacity: 0.8;
}

.step-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--input-bg);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    border: 2px solid transparent;
    transition: var(--transition);
}

.step.active .step-icon {
    background: var(--bili-pink);
    color: white;
    box-shadow: 0 0 15px rgba(251, 114, 153, 0.4);
    animation: pulse-step 1.5s infinite;
}

.step.completed .step-icon {
    background: #4CAF50;
    color: white;
}

.step.completed .step-icon::after {
    content: '✓';
}

.step.completed .step-icon {
    font-size: 0; /* Hide number */
}

.step-text {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-main);
}

@keyframes pulse-step {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(251, 114, 153, 0.4); }
    70% { transform: scale(1.1); box-shadow: 0 0 0 10px rgba(251, 114, 153, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(251, 114, 153, 0); }
}


/* Result Area */
.result-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px 40px;
}

.content-wrapper {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 24px;
    align-items: stretch;
}

.main-content-column {
    min-width: 0;
}

/* Video Info Card */
.video-info-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 24px;
    display: flex;
    gap: 24px;
    box-shadow: var(--card-shadow);
    margin-bottom: 24px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.video-info-card:hover {
    box-shadow: var(--hover-shadow);
    transform: translateY(-2px);
}

.video-cover-wrapper {
    position: relative;
    width: 180px;
    height: 112px; /* 16:10 aspect */
    flex-shrink: 0;
    border-radius: 8px;
    overflow: hidden;
    background: var(--input-bg);
    box-shadow: 0 4px 8px rgba(0,0,0,0.08);
}

.video-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.video-cover-wrapper:hover .video-cover {
    transform: scale(1.05);
}

.video-duration {
    position: absolute;
    bottom: 6px;
    right: 6px;
    background: rgba(0,0,0,0.7);
    color: white;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 500;
}

.video-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.video-title {
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1.5;
    color: var(--text-main);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.up-info {
    display: flex;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: 8px;
}

.up-name {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-main);
    font-weight: 600;
    transition: color 0.2s;
}

.up-name:hover {
    color: var(--bili-pink);
}

.video-stats {
    display: flex;
    gap: 24px;
    margin-top: auto;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.stat-item svg {
    color: var(--text-secondary);
}

.video-card-actions {
    display: flex;
    gap: 12px;
    margin-top: 16px;
}

.btn-small {
    padding: 6px 14px;
    font-size: 13px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 500;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    text-decoration: none;
}

.btn-outline:hover {
    border-color: var(--bili-pink);
    color: var(--bili-pink);
    background: var(--nav-active-bg);
}

/* Related Videos (Sidebar Version) */
.related-sidebar-section {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.related-sidebar-section .section-title {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    padding: 0 16px;
}

.related-vertical-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 0 8px;
    overflow-y: auto;
    flex: 1;
}

/* Custom scrollbar for related list */
.related-vertical-list::-webkit-scrollbar {
    width: 4px;
}

.related-vertical-list::-webkit-scrollbar-track {
    background: transparent;
}

.related-vertical-list::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.related-vertical-list::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

.related-card {
    display: flex;
    gap: 12px;
    padding: 8px;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.related-card:hover {
    background: var(--nav-hover-bg);
}

.related-cover-wrapper {
    position: relative;
    width: 100px;
    height: 62px;
    flex-shrink: 0;
    border-radius: 4px;
    overflow: hidden;
    background: var(--input-bg);
}

.related-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.related-duration {
    position: absolute;
    bottom: 2px;
    right: 2px;
    background: rgba(0,0,0,0.7);
    color: white;
    font-size: 9px;
    padding: 1px 3px;
    border-radius: 2px;
}

.related-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.related-title {
    font-size: 13px;
    font-weight: 500;
    line-height: 1.3;
    color: var(--text-main);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 4px;
}

.related-card:hover .related-title {
    color: var(--bili-pink);
}

.related-info {
    display: flex;
    flex-direction: column;
    font-size: 11px;
    color: var(--text-secondary);
    gap: 4px;
}

.related-author, .related-views {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: flex;
    align-items: center;
    gap: 4px;
}

.related-author::before {
    content: '';
    display: inline-block;
    width: 12px;
    height: 12px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239499A0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 21v-2a4 4 0 0 0-4-4H8a4 4 0 0 0-4 4v2'%3E%3C/path%3E%3Ccircle cx='12' cy='7' r='4'%3E%3C/circle%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
}

.related-views::before {
    content: '';
    display: inline-block;
    width: 12px;
    height: 12px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239499A0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolygon points='5 3 19 12 5 21 5 3'%3E%3C/polygon%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
}


.btn-mini {
    padding: 4px 10px;
    font-size: 11px;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: var(--transition);
    border: none;
    font-weight: 500;
}

.btn-primary-mini {
    background: var(--bili-pink);
    color: white;
}

.btn-primary-mini:hover {
    background: #e06489;
    box-shadow: 0 2px 6px rgba(251, 114, 153, 0.2);
}

.btn-outline-mini {
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.btn-outline-mini:hover {
    border-color: var(--bili-pink);
    color: var(--bili-pink);
    background: var(--white);
}




/* Sidebar Nav */
.sidebar-nav {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 16px;
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
    gap: 8px;
    position: sticky;
    top: 100px;
    border: 1px solid var(--border-color);
    max-height: calc(100vh - 120px);
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: transparent;
    color: var(--text-main);
    font-size: 1rem;
    border-radius: 8px;
    text-align: left;
    transition: var(--transition);
    font-weight: 500;
}

.nav-btn .icon-box {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--icon-box-bg);
    color: var(--text-secondary);
    transition: var(--transition);
}

.nav-btn:hover {
    background: var(--nav-hover-bg);
}

.nav-btn.active {
    background: var(--nav-active-bg);
    color: var(--bili-pink);
}

.nav-btn.active .icon-box {
    background: var(--bili-pink);
    color: white;
    box-shadow: 0 4px 8px rgba(251, 114, 153, 0.25);
}

/* Content Display */
.content-display {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    min-height: 600px;
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-color);
}

.toolbar {
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--toolbar-bg);
    border-top-left-radius: var(--border-radius);
    border-top-right-radius: var(--border-radius);
}

.analysis-info {
    display: flex;
    align-items: center;
    gap: 16px;
}

.analysis-meta {
    display: flex;
    gap: 8px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.analysis-meta span {
    background: var(--input-bg);
    padding: 2px 8px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    white-space: nowrap;
}

.token-usage {
    font-size: 0.85rem;
    color: var(--text-secondary);
    background: var(--input-bg);
    padding: 4px 10px;
    border-radius: 4px;
    font-weight: 500;
}


.tool-actions {
    display: flex;
    gap: 8px;
}

.btn-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-bg);
    color: var(--text-secondary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.btn-icon:hover {
    background: var(--card-bg);
    color: var(--bili-blue);
    border-color: var(--bili-blue);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(35, 173, 229, 0.15);
}

/* Tab Contents */
#tabContents {
    padding: 32px;
    flex: 1;
}

.tab-pane {
    display: none;
    animation: slideIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.tab-pane.active {
    display: block;
}

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

/* Markdown Styles Override for Bili Theme */
.markdown-body {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-main);
}

.markdown-body h1, .markdown-body h2 {
    border-bottom: none;
    margin-bottom: 20px;
    margin-top: 32px;
}

.markdown-body h2 {
    font-size: 1.4rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    font-weight: 700;
}

.markdown-body h2::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 24px;
    background: linear-gradient(to bottom, var(--bili-pink), #FF85AD);
    margin-right: 12px;
    border-radius: 4px;
}

.markdown-body h3 {
    font-size: 1.2rem;
    margin-top: 24px;
    color: var(--text-main);
    opacity: 0.9;
}

.markdown-body ul {
    padding-left: 20px;
}

.markdown-body li {
    margin-bottom: 10px;
}

.markdown-body strong {
    color: var(--bili-pink);
    font-weight: 600;
}

.markdown-body blockquote {
    color: var(--text-secondary);
    border-left: 4px solid var(--border-color);
    background: var(--input-bg);
    padding: 12px 20px;
    border-radius: 0 8px 8px 0;
    margin: 16px 0;
}

.markdown-body code {
    background: var(--input-bg);
    color: var(--bili-pink);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Consolas', monospace;
    font-size: 0.9em;
}

/* Raw Text Pane */
.raw-text-pane pre {
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-main);
    opacity: 0.8;
    background: var(--input-bg);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    max-height: 700px;
    overflow-y: auto;
    box-shadow: inset 0 2px 6px rgba(0,0,0,0.02);
}

/* Modal Styles - 修复并美化 */
.modal {
    display: flex; /* Flex布局居中 */
    justify-content: center;
    align-items: center;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: var(--modal-overlay); /* 半透明遮罩 */
    backdrop-filter: blur(4px); /* 背景模糊 */
    opacity: 1;
    transition: opacity 0.3s ease;
}

.modal.hidden {
    display: none !important;
    opacity: 0;
    pointer-events: none;
}

.modal-content {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 16px;
    width: 90%;
    max-width: 400px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
    text-align: center;
    position: relative;
    animation: modalPop 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid var(--border-color);
}

@keyframes modalPop {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 15px;
    color: var(--text-secondary);
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
    width: 30px;
    height: 30px;
    line-height: 30px;
    border-radius: 50%;
    transition: all 0.2s;
}

.close-modal:hover {
    color: var(--text-main);
    background: var(--nav-hover-bg);
}

.modal-content h2 {
    margin-bottom: 24px;
    color: var(--text-main);
    font-size: 1.4rem;
}

.qrcode-container {
    background: var(--input-bg);
    padding: 20px;
    border-radius: 12px;
    display: inline-block;
}

.qrcode-img {
    width: 200px;
    height: 200px;
    background: white; /* Always white for QR readability */
    margin: 0 auto 16px;
    padding: 10px;
    border-radius: 8px;
}

.qrcode-img img {
    width: 100%;
    height: 100%;
    display: block;
}

#loginStatus {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 12px;
}

/* Chat Pane */
.chat-pane.active {
    display: flex;
}

.chat-pane {
    display: none;
    height: 600px;
    flex-direction: column;
}

.chat-container {
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding-right: 8px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.message {
    display: flex;
    flex-direction: column;
    max-width: 85%;
}

.message.assistant {
    align-self: flex-start;
}

.message.user {
    align-self: flex-end;
}

.message-content {
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 15px;
    line-height: 1.6;
    word-wrap: break-word;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.message.assistant .message-content {
    background: var(--nav-hover-bg);
    color: var(--text-main);
    border-bottom-left-radius: 2px;
}

.message.user .message-content {
    background: var(--bili-pink);
    color: white;
    border-bottom-right-radius: 2px;
}

.chat-input-area {
    display: flex;
    gap: 12px;
    padding: 16px;
    background: var(--input-bg);
    border-radius: 16px;
    align-items: flex-end;
    border: 1px solid var(--border-color);
}

#chatInput {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    resize: none;
    max-height: 150px;
    min-height: 24px;
    font-family: inherit;
    font-size: 15px;
    color: var(--text-main);
    padding: 4px 0;
}

#sendMsgBtn {
    padding: 0;
    width: 40px;
    height: 40px;
    min-width: 40px;
    justify-content: center;
    border-radius: 10px;
}

/* Loading Dots Animation */
.loading-dots::after {
    content: '...';
    display: inline-block;
    width: 20px;
    text-align: left;
    animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
    0%, 20% { content: ''; }
    40% { content: '.'; }
    60% { content: '..'; }
    80%, 100% { content: '...'; }
}

/* UP Portrait Card */
.up-portrait-card {
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--nav-hover-bg) 100%);
    border-radius: var(--border-radius);
    padding: 24px;
    margin-bottom: 24px;
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
    transition: var(--transition);
}

.up-portrait-card:hover {
    box-shadow: var(--hover-shadow);
    border-color: var(--bili-blue);
}

.portrait-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
    position: relative;
}

.up-face {
    width: 54px;
    height: 54px;
    border-radius: 50%;
    border: 2px solid var(--bili-pink);
    padding: 2px;
}

.up-meta h4 {
    margin: 0;
    font-size: 1.1rem;
    color: var(--text-main);
}

.up-sign {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: block;
    margin-top: 4px;
}

.up-badge {
    position: absolute;
    top: 0;
    right: 0;
    background: var(--bili-blue);
    color: white;
    padding: 4px 10px;
    border-radius: 8px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.portrait-body {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-main);
    padding: 16px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 12px;
}

.dark-theme .portrait-body {
    background: rgba(0, 0, 0, 0.2);
}

/* Analysis Mode Switcher */
.analysis-mode-switcher {
    display: flex;
    background: var(--input-bg);
    padding: 4px;
    border-radius: 14px;
    margin-bottom: 12px;
    align-self: flex-start;
    position: relative;
    z-index: 1;
    border: 1px solid var(--border-color);
}

.mode-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-secondary);
    background: transparent;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 2;
}

.mode-btn:hover {
    color: var(--bili-pink);
}

.mode-btn.active {
    color: var(--bili-pink);
    background: var(--white);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.dark-theme .mode-btn.active {
    background: #2D1E22;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* 搜索框动态边框 */
.search-box.mode-video { border-color: var(--bili-pink); }
.search-box.mode-article { border-color: #9b51e0; }
.search-box.mode-user { border-color: var(--bili-blue); }

.btn-primary.mode-article { background: linear-gradient(135deg, #9b51e0 0%, #bb6bd9 100%); box-shadow: 0 8px 20px rgba(155, 81, 224, 0.3); }
.btn-primary.mode-user { background: linear-gradient(135deg, var(--bili-blue) 0%, #3EBAD5 100%); box-shadow: 0 8px 20px rgba(35, 173, 229, 0.3); }

/* 内容区切换动效 */
.tab-pane {
    display: none;
    animation: fadeInScale 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes fadeInScale {
    from { opacity: 0; transform: scale(0.98) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

/* User Works Grid */
.user-works-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    padding: 10px;
}

.user-work-card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    cursor: pointer;
}

.user-work-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow);
    border-color: var(--bili-pink);
}

.user-work-cover-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
}

.user-work-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-work-duration {
    position: absolute;
    bottom: 6px;
    right: 6px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 4px;
}

.user-work-info {
    padding: 12px;
}

.user-work-title {
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 8px;
    height: 2.8em;
}

.user-work-meta {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.user-work-actions {
    display: flex;
    gap: 8px;
}

.user-work-actions .btn-mini {
    flex: 1;
    justify-content: center;
    padding: 6px 0;
}

/* Search Results Panel */
.search-results-panel {
    width: 100%;
    max-width: 1400px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    margin-top: 12px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
    z-index: 100;
    overflow: hidden;
    animation: slideInDown 0.3s ease;
}

.results-header {
    padding: 12px 20px;
    background: var(--nav-hover-bg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.results-list {
    max-height: 400px;
    overflow-y: auto;
}

.result-item {
    display: flex;
    gap: 16px;
    padding: 12px 20px;
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 1px solid var(--border-color);
}

.result-item:last-child { border-bottom: none; }

.result-item:hover {
    background: var(--nav-active-bg);
}

.result-thumb {
    width: 120px;
    aspect-ratio: 16/9;
    border-radius: 8px;
    object-fit: cover;
    background: var(--input-bg);
}

.result-thumb.user-face {
    width: 50px;
    height: 50px;
    border-radius: 50%;
}

.result-info {
    flex: 1;
    min-width: 0;
}

.result-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.result-meta {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.btn-icon-small {
    background: transparent;
    font-size: 1.2rem;
    color: var(--text-secondary);
    padding: 0 8px;
}

.btn-icon-small:hover { color: var(--bili-pink); }

/* Guide Modal Styles */
.guide-modal-content {
    max-width: 700px;
    max-height: 85vh;
    border-top: 5px solid var(--bili-pink);
    display: flex;
    flex-direction: column;
}

.guide-header {
    background: linear-gradient(135deg, var(--nav-active-bg) 0%, var(--card-bg) 100%);
    padding: 20px 25px;
}

.guide-title-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.guide-icon {
    color: var(--bili-pink);
}

.guide-body {
    padding: 25px;
    overflow-y: auto;
    font-size: 0.95rem;
}

.guide-body h3 {
    margin-top: 1.5rem;
    color: var(--bili-blue);
    border-left: 4px solid var(--bili-pink);
    padding-left: 10px;
}

.guide-footer {
    padding: 15px 25px;
    background: var(--nav-hover-bg);
    border-top: 1px solid var(--border-color);
}

.support-area {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.support-btns {
    display: flex;
    gap: 10px;
}

/* Donate Modal */
.donate-modal-content {
    max-width: 350px;
    text-align: center;
}

.donate-body {
    padding: 20px;
}

.donate-qr {
    width: 100%;
    border-radius: 12px;
    margin-bottom: 15px;
    border: 1px solid var(--border-color);
}

.dark-theme .guide-header {
    background: linear-gradient(135deg, #2D1E22 0%, #18191C 100%);
}

.dark-theme .donate-qr {
    filter: brightness(0.9);
}

/* Word Cloud Styles */
.word-cloud-wrapper {
    background: var(--input-bg);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 32px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.word-cloud-canvas-container {
    width: 100%;
    height: 300px;
    position: relative;
    display: flex;
    justify-content: center;
}

#danmakuCanvas {
    max-width: 100%;
    height: 100% !important;
    cursor: default;
}

.dark-theme .word-cloud-wrapper {
    background: #1C1D1F;
}

/* Comment Analysis Section */
.top-comments-section {
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.section-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-main);
}

.comment-card {
    background: var(--input-bg);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 16px;
    display: flex;
    gap: 16px;
    transition: var(--transition);
}

.comment-card:hover {
    transform: translateX(4px);
    background: var(--nav-hover-bg);
}

.comment-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid var(--border-color);
}

.comment-main {
    flex: 1;
}

.comment-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.comment-user {
    font-weight: 600;
    font-size: 14px;
    color: var(--bili-pink);
}

.comment-level {
    font-size: 10px;
    font-style: italic;
    background: #FFB300;
    color: white;
    padding: 0 4px;
    border-radius: 2px;
    line-height: 14px;
}

.comment-text {
    font-size: 14px;
    color: var(--text-main);
    line-height: 1.6;
    white-space: pre-wrap;
    margin-bottom: 8px;
}

.comment-footer {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 12px;
    color: var(--text-secondary);
}

.comment-stat {
    display: flex;
    align-items: center;
    gap: 4px;
}

.comment-stat svg {
    color: var(--text-secondary);
}

/* Utilities */
.hidden { display: none !important; }

/* Toast */
.toast {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(24, 25, 28, 0.9);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    z-index: 2000;
    font-size: 15px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    animation: slideUp 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    align-items: center;
    gap: 8px;
}

@keyframes slideUp {
    from { transform: translate(-50%, 40px); opacity: 0; }
    to { transform: translate(-50%, 0); opacity: 1; }
}

/* Settings Drawer */
.drawer {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    z-index: 1100;
    visibility: visible;
    transition: visibility 0.3s;
}

.drawer.hidden {
    visibility: hidden;
    pointer-events: none;
}

.drawer-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    opacity: 1;
    transition: opacity 0.3s ease;
}

.drawer.hidden .drawer-overlay {
    opacity: 0;
}

.drawer-content {
    position: absolute;
    top: 0;
    right: 0;
    width: 350px;
    height: 100%;
    background: var(--card-bg);
    box-shadow: -4px 0 12px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    transform: translateX(0);
    transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    border-left: 1px solid var(--border-color);
}

.drawer.hidden .drawer-content {
    transform: translateX(100%);
}

.drawer-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.drawer-header h3 {
    font-size: 1.25rem;
    color: var(--text-main);
}

.close-drawer {
    background: transparent;
    border: none;
    font-size: 24px;
    color: var(--text-secondary);
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.close-drawer:hover {
    background: var(--nav-hover-bg);
    color: var(--text-main);
}

.drawer-body {
    padding: 24px;
    flex: 1;
    overflow-y: auto;
}

.drawer-footer {
    padding: 20px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
}

.settings-group {
    margin-bottom: 32px;
}

.settings-group h4 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.setting-item {
    margin-bottom: 20px;
}

.setting-item label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.setting-hint {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 8px;
    line-height: 1.4;
}

.setting-hint a {
    color: var(--bili-pink);
    text-decoration: none;
}

.setting-hint a:hover {
    text-decoration: underline;
}

.setting-item select, .setting-item input[type="text"], .setting-item input[type="password"] {
    width: 100%;
    padding: 10px 12px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--input-bg);
    color: var(--text-main);
    outline: none;
    transition: var(--transition);
}

.setting-item select:focus, .setting-item input:focus {
    border-color: var(--bili-blue);
    background: var(--card-bg);
}

/* Switch Style */
.switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    transition: .4s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--bili-pink);
}

input:checked + .slider:before {
    transform: translateX(24px);
}

/* Footer Styles */
.main-footer {
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
    padding: 60px 20px 40px;
    margin-top: 60px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
    justify-content: center;
}

.footer-tags .tag {
    background: var(--input-bg);
    color: var(--text-secondary);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    transition: var(--transition);
}

.footer-tags .tag:hover {
    background: var(--nav-active-bg);
    color: var(--bili-pink);
    transform: translateY(-2px);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h5 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-main);
    position: relative;
    padding-bottom: 10px;
}

.footer-section h5::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 3px;
    background: var(--bili-pink);
    border-radius: 2px;
}

.footer-section p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.disclaimer-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.disclaimer-list li {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 8px;
    position: relative;
    padding-left: 14px;
}

.disclaimer-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--bili-pink);
    font-weight: bold;
}

.footer-section .highlight {
    color: var(--bili-pink);
    font-weight: 600;
}

.footer-links {
    margin-top: 20px;
}

.footer-links a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-main);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--bili-pink);
}

.vendor-grid {
    display: flex;
    gap: 20px;
    margin-top: 10px;
}

.vendor-item {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--input-bg);
    padding: 10px 16px;
    border-radius: 12px;
    color: var(--text-main);
    font-size: 0.85rem;
    font-weight: 600;
    transition: var(--transition);
    border: 1px solid transparent;
}

.vendor-item:hover {
    border-color: var(--bili-pink);
    background: var(--card-bg);
    transform: translateY(-2px);
    box-shadow: var(--card-shadow);
}

.vendor-item svg {
    color: var(--bili-pink);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* Dark Theme Adjustments for Footer */
.dark-theme .main-footer {
    background: #18191C;
}

.dark-theme .vendor-item {
    background: #232526;
}

/* Responsive */
@media (max-width: 768px) {
    .content-wrapper {
        grid-template-columns: 1fr;
    }
    
    .sidebar-nav {
        position: static;
        flex-direction: row;
        overflow-x: auto;
        padding: 12px;
        top: 0;
        z-index: 10;
        margin-bottom: 16px;
    }
    
    .nav-btn {
        white-space: nowrap;
        padding: 10px 14px;
    }

    .video-info-card {
        flex-direction: column;
        padding: 16px;
        gap: 16px;
    }

    .video-cover-wrapper {
        width: 100%;
        height: auto;
        aspect-ratio: 16/9;
    }

    .video-stats {
        margin-top: 12px;
        justify-content: space-between;
    }
}