:root {
    --main-color: #6d5dfc;
    --accent-color: #22d3ee;
    --bg-color: #0f1020;
    --text-color: #e8eaf6;
    --border-color: rgba(232, 234, 246, 0.15);
    --card-bg: rgba(15, 16, 32, 0.8);
    --font-display: 'Inter', sans-serif;
  }
  
  * { margin: 0; padding: 0; box-sizing: border-box; }
  
  body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-display);
    overflow-x: hidden;
  }
  
  /* 顶部导航 */
  .navbar-custom {
    background: rgba(15, 16, 32, 0.95);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    backdrop-filter: blur(10px);
    z-index: 999;
  }
  
  .navbar-brand {
    font-weight: 900;
    font-size: 1.8rem;
    color: var(--text-color) !important;
    letter-spacing: 1px;
  }
  
  .navbar-brand i {
    color: var(--accent-color);
    margin-right: 8px;
  }
  
  .nav-link {
    color: var(--text-color) !important;
    font-weight: 500;
    margin: 0 1rem;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    transition: color 0.3s;
  }
  
  .nav-link:hover {
    color: var(--accent-color) !important;
  }
  
  /* Hero 区 */
  .hero-section {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-bottom: 1px solid var(--border-color);
  }
  
  .hero-bg {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 120%;
    background-image: url('{随机图片}');
    background-size: cover;
    background-position: center;
    filter: brightness(0.4);
    will-change: transform;
  }
  
  .hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 4rem 2rem;
  }
  
  .hero-title {
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    letter-spacing: -2px;
    text-shadow: 0 0 40px rgba(109, 93, 252, 0.3);
  }
  
  .hero-subtitle {
    font-size: 1.2rem;
    font-weight: 300;
    color: rgba(232, 234, 246, 0.8);
    margin-bottom: 2.5rem;
    letter-spacing: 3px;
  }
  
  .hero-btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--main-color);
    color: var(--text-color) !important;
    border: none;
    font-weight: 700;
    font-size: 1rem;
    text-decoration: none;
    letter-spacing: 2px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s;
    box-shadow: 0 0 30px rgba(109, 93, 252, 0.3);
  }
  
  .hero-btn::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s;
  }
  
  .hero-btn:hover::before {
    left: 100%;
  }
  
  .hero-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 50px rgba(109, 93, 252, 0.5);
  }
  
  .typing-cursor {
    border-right: 3px solid var(--accent-color);
    animation: blink 1s infinite;
  }
  
  @keyframes blink {
    0%, 50% { border-color: var(--accent-color); }
    51%, 100% { border-color: transparent; }
  }
  
  /* 区块通用样式 */
  .section-block {
    padding: 6rem 0;
    border-bottom: 1px solid var(--border-color);
  }
  
  .section-header {
    margin-bottom: 3rem;
  }
  
  .section-title {
    font-size: 2.5rem;
    font-weight: 900;
    letter-spacing: -1px;
    position: relative;
    display: inline-block;
  }
  
  .section-title::after {
    content: '';
    position: absolute;
    bottom: -8px; left: 0;
    width: 60px; height: 3px;
    background: var(--accent-color);
  }
  
  .section-subtitle {
    color: rgba(232, 234, 246, 0.6);
    font-weight: 300;
    margin-top: 1rem;
    letter-spacing: 1px;
  }
  
  /* 海报卡片 */
  .poster-card {
    background: transparent;
    border: 1px solid var(--border-color);
    position: relative;
    cursor: pointer;
    transition: all 0.3s;
    margin-bottom: 2rem;
    overflow: hidden;
  }
  
  .poster-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-5px);
  }
  
  .poster-wrapper {
    position: relative;
    overflow: hidden;
    aspect-ratio: 3/4;
  }
  
  .poster-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.5s ease;
  }
  
  .poster-wrapper img.loaded {
    opacity: 1;
  }
  
  .poster-badge {
    position: absolute;
    top: 10px; left: 10px;
    background: rgba(109, 93, 252, 0.9);
    color: var(--text-color);
    padding: 4px 10px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    z-index: 2;
  }
  
  .poster-overlay {
    position: absolute;
    bottom: 0; left: 0;
    width: 100%;
    background: linear-gradient(transparent, rgba(15,16,32,0.9));
    padding: 2rem 1rem 1rem;
    z-index: 2;
  }
  
  .poster-title {
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 0.3rem;
    letter-spacing: 0.5px;
  }
  
  .poster-meta {
    font-size: 0.75rem;
    color: rgba(232, 234, 246, 0.7);
    font-family: 'Inter', monospace;
  }
  
  .poster-rating {
    display: inline-block;
    background: rgba(34, 211, 238, 0.2);
    color: var(--accent-color);
    padding: 2px 8px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-top: 0.3rem;
  }
  
  /* 热度榜 */
  .rank-list {
    list-style: none;
    border: 1px solid var(--border-color);
  }
  
  .rank-item {
    display: flex;
    align-items: center;
    padding: 1.2rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    transition: background 0.3s;
  }
  
  .rank-item:last-child { border-bottom: none; }
  
  .rank-item:hover {
    background: rgba(109, 93, 252, 0.05);
  }
  
  .rank-number {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--main-color);
    width: 60px;
    font-family: 'Inter', monospace;
  }
  
  .rank-info {
    flex: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .rank-name {
    font-weight: 600;
    font-size: 1rem;
  }
  
  .rank-heat {
    color: var(--accent-color);
    font-family: 'Inter', monospace;
    font-size: 0.9rem;
  }
  
  /* 步骤条 */
  .steps-container {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    margin-top: 3rem;
    flex-wrap: wrap;
  }
  
  .step-item {
    flex: 1;
    min-width: 200px;
    text-align: center;
    padding: 2rem;
    border: 1px solid var(--border-color);
    position: relative;
  }
  
  .step-number {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--main-color);
    opacity: 0.3;
    display: block;
    margin-bottom: 1rem;
    font-family: 'Inter', monospace;
  }
  
  .step-title {
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
  }
  
  .step-desc {
    font-size: 0.85rem;
    color: rgba(232, 234, 246, 0.7);
    font-weight: 300;
  }
  
  /* 分类按钮 */
  .category-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.5rem 1.5rem;
    font-weight: 500;
    transition: all 0.3s;
    margin: 0.5rem;
    letter-spacing: 1px;
  }
  
  .category-btn:hover,
  .category-btn.active {
    border-color: var(--accent-color);
    color: var(--accent-color);
    background: rgba(34, 211, 238, 0.1);
  }
  
  /* 友情链接 */
  .friend-links {
    padding: 3rem 0;
    border-bottom: 1px solid var(--border-color);
  }
  
  .friend-links h3 {
    font-size: 1rem;
    font-weight: 700;
    color: rgba(232, 234, 246, 0.6);
    margin-bottom: 1rem;
    letter-spacing: 2px;
  }
  
  /* 页脚 */
  .footer-custom {
    padding: 4rem 0 2rem;
    background: rgba(15, 16, 32, 0.9);
  }
  
  .footer-brand {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--text-color);
    margin-bottom: 1rem;
  }
  
  .footer-links {
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
    margin-bottom: 2rem;
  }
  
  .footer-links a {
    color: rgba(232, 234, 246, 0.7);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
  }
  
  .footer-links a:hover {
    color: var(--accent-color);
  }
  
  .footer-copyright {
    color: rgba(232, 234, 246, 0.5);
    font-size: 0.85rem;
    font-weight: 300;
  }
  
  /* 弹窗 */
  .modal-custom {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(15, 16, 32, 0.95);
    backdrop-filter: blur(20px);
    z-index: 9999;
    overflow-y: auto;
  }
  
  .modal-custom.show {
    display: block;
  }
  
  .modal-backdrop-bg {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-size: cover;
    background-position: center;
    filter: blur(50px) brightness(0.3);
    opacity: 0.5;
  }
  
  .modal-content-wrap {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 5vh auto;
    padding: 3rem;
    background: rgba(15, 16, 32, 0.9);
    border: 1px solid var(--border-color);
  }
  
  .modal-close {
    position: absolute;
    top: 20px; right: 20px;
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    width: 40px; height: 40px;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s;
  }
  
  .modal-close:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
  }
  
  .modal-movie-title {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 1.5rem;
    color: var(--text-color);
  }
  
  .modal-movie-info {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
  }
  
  .modal-movie-info span {
    background: rgba(109, 93, 252, 0.15);
    padding: 0.4rem 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid rgba(109, 93, 252, 0.3);
  }
  
  .modal-movie-plot {
    font-size: 1rem;
    line-height: 1.8;
    color: rgba(232, 234, 246, 0.85);
    font-weight: 300;
    margin-bottom: 2rem;
  }
  
  .modal-movie-actors {
    font-size: 0.9rem;
    color: rgba(232, 234, 246, 0.7);
    font-weight: 300;
  }
  
  .modal-movie-rating {
    position: absolute;
    top: 3rem; right: 3rem;
    font-size: 3rem;
    font-weight: 900;
    color: var(--accent-color);
    font-family: 'Inter', monospace;
    text-shadow: 0 0 30px rgba(34, 211, 238, 0.3);
  }
  
  /* 互动推荐 */
  .random-recommend {
    text-align: center;
    padding: 4rem 0;
    border-bottom: 1px solid var(--border-color);
  }
  
  .recommend-btn {
    background: transparent;
    border: 2px solid var(--accent-color);
    color: var(--accent-color);
    padding: 1rem 3rem;
    font-weight: 700;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 2rem;
  }
  
  .recommend-btn:hover {
    background: var(--accent-color);
    color: var(--bg-color);
  }
  
  .recommend-result {
    margin-top: 2rem;
    font-size: 1.5rem;
    font-weight: 700;
    min-height: 3rem;
  }
  
  /* 工具类 */
  .text-accent { color: var(--accent-color); }
  .border-custom { border: 1px solid var(--border-color); }
  .no-shadow { box-shadow: none !important; }
  
  /* 响应式 */
  @media (max-width: 768px) {
    .hero-title { font-size: 2.5rem; }
    .section-block { padding: 4rem 0; }
    .poster-card { margin-bottom: 1.5rem; }
    .modal-movie-rating { position: static; font-size: 2rem; margin-bottom: 1rem; }
    .modal-content-wrap { margin: 2vh 1rem; padding: 2rem; }
  }

/* --- 子页面追加 --- */
/* 本页专属样式 */
        .about-hero {
            background: linear-gradient(135deg, rgba(109, 93, 252, 0.2) 0%, rgba(34, 211, 238, 0.1) 100%);
            padding: 100px 0 60px;
        }
.about-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            margin-bottom: 30px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
.about-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(109, 93, 252, 0.15);
        }
.about-icon {
            font-size: 2.5rem;
            color: var(--main-color);
            margin-bottom: 20px;
        }
.about-icon i {
            width: 60px;
            height: 60px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(109, 93, 252, 0.15);
            border-radius: 16px;
        }
.about-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
.about-list li {
            padding: 10px 0;
            padding-left: 30px;
            position: relative;
            color: var(--text-color);
            border-bottom: 1px solid var(--border-color);
        }
.about-list li:last-child {
            border-bottom: none;
        }
.about-list li::before {
            content: '\f105';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            color: var(--accent-color);
        }
.about-stats {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            margin: 40px 0;
            text-align: center;
        }
.stat-item {
            padding: 20px;
            min-width: 140px;
        }
.stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--main-color);
            display: block;
        }
.stat-label {
            color: var(--text-color);
            opacity: 0.8;
            font-size: 0.9rem;
            margin-top: 8px;
        }
.page-header {
            margin-bottom: 40px;
        }
.page-header h1 {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--text-color);
            margin-bottom: 10px;
        }
.page-header p {
            color: var(--text-color);
            opacity: 0.8;
            font-size: 1.1rem;
        }
.value-tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(109, 93, 252, 0.15);
            color: var(--main-color);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-right: 8px;
            margin-bottom: 8px;
        }
.highlight-box {
            background: rgba(34, 211, 238, 0.08);
            border: 1px solid rgba(34, 211, 238, 0.3);
            border-radius: 12px;
            padding: 20px;
            margin: 20px 0;
        }
.page-header h1 {
                font-size: 1.8rem;
            }
.stat-number {
                font-size: 1.8rem;
            }

/* --- 子页面追加 --- */
/* 页面专属辅助样式 */
        .help-hero {
            background: linear-gradient(135deg, rgba(109, 93, 252, 0.15) 0%, rgba(34, 211, 238, 0.08) 100%);
            padding: 80px 0 50px;
            border-bottom: 1px solid var(--border-color);
        }
.help-section {
            padding: 50px 0;
        }
.help-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            margin-bottom: 30px;
            transition: all 0.3s ease;
        }
.help-card:hover {
            border-color: rgba(109, 93, 252, 0.5);
            box-shadow: 0 8px 30px rgba(0,0,0,0.3);
        }
.help-card h3 {
            color: var(--main-color);
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
.help-card h3 i {
            color: var(--accent-color);
            font-size: 1.2rem;
        }
.help-card p, .help-card li {
            color: var(--text-color);
            line-height: 1.8;
            font-size: 0.95rem;
        }
.help-card ul {
            padding-left: 20px;
        }
.help-card ul li {
            margin-bottom: 10px;
        }
.help-card ol {
            padding-left: 20px;
        }
.help-card ol li {
            margin-bottom: 12px;
            padding-left: 5px;
        }
.help-card .highlight {
            color: var(--accent-color);
            font-weight: 600;
        }
.help-card .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--main-color);
            color: #fff;
            font-size: 0.85rem;
            font-weight: 700;
            margin-right: 10px;
        }
.faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 20px 0;
        }
.faq-item:last-child {
            border-bottom: none;
        }
.faq-item h4 {
            color: var(--text-color);
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 10px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
.faq-item h4 i {
            color: var(--main-color);
            font-size: 0.9rem;
            transition: transform 0.3s;
        }
.faq-item h4:hover {
            color: var(--accent-color);
        }
.faq-item p {
            color: rgba(232, 234, 246, 0.8);
            line-height: 1.8;
            font-size: 0.92rem;
            margin-top: 10px;
        }
.tip-box {
            background: rgba(109, 93, 252, 0.1);
            border-left: 4px solid var(--main-color);
            padding: 15px 20px;
            border-radius: 8px;
            margin: 20px 0;
        }
.tip-box p {
            color: var(--text-color);
            font-size: 0.9rem;
            line-height: 1.7;
        }
.tip-box i {
            color: var(--accent-color);
            margin-right: 8px;
        }
.device-icon {
            font-size: 2rem;
            color: var(--main-color);
            margin-bottom: 15px;
        }
.help-hero {
                padding: 60px 0 40px;
            }
.help-card {
                padding: 20px;
            }
.help-card h3 {
                font-size: 1.2rem;
            }

/* --- 子页面追加 --- */
.disclaimer-hero {
            background: linear-gradient(135deg, rgba(109, 93, 252, 0.15) 0%, rgba(34, 211, 238, 0.1) 50%, rgba(15, 16, 32, 0.9) 100%);
            padding: 80px 0 60px;
            border-bottom: 1px solid var(--border-color);
        }
.disclaimer-section {
            padding: 50px 0;
            border-bottom: 1px solid var(--border-color);
        }
.disclaimer-section:last-child {
            border-bottom: none;
        }
.disclaimer-content {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 20px;
        }
.disclaimer-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            margin-bottom: 25px;
        }
.disclaimer-card h3 {
            color: var(--main-color);
            font-weight: 700;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
.disclaimer-card p {
            color: var(--text-color);
            line-height: 1.8;
            margin-bottom: 12px;
        }
.disclaimer-card ul {
            padding-left: 20px;
            color: var(--text-color);
            line-height: 2;
        }
.disclaimer-card ul li {
            margin-bottom: 8px;
        }
.last-updated {
            color: rgba(232, 234, 246, 0.5);
            font-size: 0.9rem;
            margin-top: 30px;
            text-align: center;
        }
.back-home-btn {
            display: inline-block;
            padding: 12px 30px;
            background: var(--main-color);
            color: #fff;
            border-radius: 25px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            margin-top: 20px;
        }
.back-home-btn:hover {
            background: var(--accent-color);
            color: #0f1020;
            transform: translateY(-2px);
        }
.disclaimer-hero {
                padding: 60px 0 40px;
            }
.disclaimer-card {
                padding: 20px;
            }

/* --- 子页面追加 --- */
/* 排行榜页专属样式 */
        .ranking-hero {
            background: linear-gradient(135deg, rgba(109, 93, 252, 0.15) 0%, rgba(34, 211, 238, 0.1) 100%);
            border-bottom: 1px solid var(--border-color);
            padding: 60px 0 40px;
            text-align: center;
        }
.ranking-hero .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-color);
            margin-bottom: 12px;
        }
.ranking-hero .hero-subtitle {
            color: var(--text-color);
            opacity: 0.7;
            max-width: 600px;
            margin: 0 auto;
        }
.rank-filter {
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
            margin: 30px 0 40px;
        }
.rank-filter-btn {
            padding: 8px 20px;
            border-radius: 25px;
            border: 1px solid var(--border-color);
            background: var(--card-bg);
            color: var(--text-color);
            font-size: 0.9rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
        }
.rank-filter-btn:hover, .rank-filter-btn.active {
            background: var(--main-color);
            border-color: var(--main-color);
            color: #fff;
        }
.rank-section {
            padding: 30px 0 60px;
        }
.rank-section-header {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 30px;
            padding-bottom: 15px;
            border-bottom: 2px solid var(--border-color);
        }
.rank-section-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--main-color), var(--accent-color));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
        }
.rank-section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-color);
            margin: 0;
        }
.rank-item:nth-child(1) .rank-number {
            color: #FFD700;
            font-size: 2.2rem;
        }
.rank-item:nth-child(2) .rank-number {
            color: #C0C0C0;
            font-size: 2rem;
        }
.rank-item:nth-child(3) .rank-number {
            color: #CD7F32;
            font-size: 2rem;
        }
.rank-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-color);
            margin-bottom: 5px;
        }
.rank-meta {
            font-size: 0.85rem;
            color: var(--text-color);
            opacity: 0.6;
        }
.rank-stats {
            display: flex;
            gap: 15px;
            font-size: 0.9rem;
            color: var(--accent-color);
        }
.rank-stats i {
            margin-right: 4px;
        }
.rank-trend-up {
            color: #22c55e;
        }
.rank-trend-down {
            color: #ef4444;
        }
.rank-trend-same {
            color: #94a3b8;
        }
.ranking-hero .hero-title {
                font-size: 2rem;
            }
.rank-stats {
                flex-wrap: wrap;
                gap: 8px;
            }

/* --- 子页面追加 --- */
/* 保证反馈表单、卡片等组件与深色主题融合 */
    .feedback-card, .feedback-card .card-body {
      background: var(--card-bg);
      color: var(--text-color);
      border: 1px solid var(--border-color);
      border-radius: 16px;
    }
.feedback-card .form-label {
      color: var(--text-color);
      font-weight: 500;
    }
.feedback-card .form-control, .feedback-card .form-select {
      background: rgba(0, 0, 0, 0.35);
      border: 1px solid var(--border-color);
      color: var(--text-color);
      padding: 0.75rem 1rem;
      border-radius: 10px;
    }
.feedback-card .form-control::placeholder {
      color: rgba(232, 234, 246, 0.5);
    }
.feedback-card .form-control:focus, .feedback-card .form-select:focus {
      border-color: var(--main-color);
      box-shadow: 0 0 0 0.2rem rgba(109, 93, 252, 0.25);
      background: rgba(0, 0, 0, 0.45);
      color: #fff;
    }
.feedback-card .form-select option {
      background: #1b1c2b;
      color: #e8eaf6;
    }
.btn-feedback {
      background: var(--main-color);
      border: none;
      color: #fff;
      font-weight: 600;
      padding: 0.7rem 1.5rem;
      border-radius: 50px;
      transition: all 0.2s ease;
    }
.btn-feedback:hover {
      background: var(--accent-color);
      color: #0f1020;
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(34, 211, 238, 0.15);
    }
.feedback-meta a {
      color: var(--accent-color);
      text-decoration: none;
    }
.feedback-meta a:hover {
      text-decoration: underline;
    }
.list-group-item {
      background: transparent;
      color: var(--text-color);
      border-color: var(--border-color);
    }
.feedback-card ul li::marker {
      color: var(--main-color);
    }
/* 保证任何bootstrap组件不出现白底 */
    .accordion-item, .accordion-button, .accordion-body {
      background: var(--card-bg) !important;
      color: var(--text-color) !important;
      border-color: var(--border-color) !important;
    }
.accordion-button:not(.collapsed) {
      background: rgba(109, 93, 252, 0.1) !important;
      color: var(--accent-color) !important;
    }

/* --- Bootstrap 组件配色适配(程序自动补,避免白底黑字) --- */
.accordion-header { background:transparent !important; }