:root {
            --primary: #dc2626;
            --accent: #fb923c;
            --bg: #141013;
            --text-light: #fef2f2;
            --border-thick: 3px solid #dc2626;
            --card-bg: #1e1a1e;
            --shadow-hard: 6px 6px 0 #000;
        }
        * { border-radius: 0 !important; font-family: 'Inter', system-ui, sans-serif; }
        body {
            background-color: var(--bg);
            color: var(--text-light);
            letter-spacing: 0.3px;
            line-height: 1.6;
        }
        /* 顶部进度条 */
        #progressBar {
            position: fixed; top: 0; left: 0; height: 4px; width: 0%;
            background: var(--accent); z-index: 9999; transition: width 0.2s;
        }
        /* 硬朗风格 */
        h1, h2, h3, h4, .display-3 {
            font-weight: 800 !important;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--text-light);
        }
        .brand-font {
            font-weight: 900;
            font-size: 2rem;
        }
        .navbar-custom {
            background: #0f0c0f;
            border-bottom: 4px solid var(--primary);
            box-shadow: 0 4px 0 #000;
        }
        .navbar-custom .nav-link {
            color: #fef2f2 !important;
            font-weight: 600;
            padding: 0.8rem 1.2rem !important;
            border-left: 2px solid transparent;
        }
        .navbar-custom .nav-link:hover {
            border-left-color: var(--accent);
            background: rgba(220,38,38,0.1);
        }
        .navbar-brand {
            font-size: 2rem !important;
            font-weight: 900;
            color: #fff !important;
        }
        .btn-outline-light, .btn-danger, .btn-accent {
            border-radius: 0 !important;
            border-width: 2px;
            font-weight: 700;
        }
        .btn-hard {
            box-shadow: 4px 4px 0 var(--accent);
        }
        .poster-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.2rem;
            width: 100%;
        }
        @media (max-width: 992px) {
            .poster-grid { grid-template-columns: repeat(3, 1fr); }
        }
        @media (max-width: 768px) {
            .poster-grid { grid-template-columns: repeat(2, 1fr); }
        }
        .movie-card {
            background: #1a141a;
            border: 2px solid #333;
            box-shadow: 6px 6px 0 #000;
            transition: 0.2s;
            cursor: pointer;
            position: relative;
            aspect-ratio: 2 / 3;
            overflow: hidden;
        }
        .movie-card img {
            width: 100%; height: 100%; object-fit: cover;
            transition: transform 0.3s;
        }
        .movie-card:hover img {
            transform: scale(1.05);
        }
        .movie-overlay {
            position: absolute; inset: 0; background: rgba(0,0,0,0.3);
            display: flex; align-items: center; justify-content: center;
            opacity: 0; transition: 0.3s;
        }
        .movie-card:hover .movie-overlay {
            opacity: 1;
        }
        .play-btn {
            width: 50px; height: 50px; background: var(--primary);
            border: none; font-size: 1.8rem; color: #fff;
            display: flex; align-items: center; justify-content: center;
            box-shadow: 0 0 0 3px #fff;
        }
        /* 手风琴 */
        .accordion-item {
            background: transparent;
            border: 2px solid #444;
            margin-bottom: 10px;
        }
        .accordion-button {
            background: #221d22;
            color: var(--text-light);
            font-weight: 700;
            font-size: 1.2rem;
            box-shadow: none;
            border-bottom: 1px solid #444;
        }
        .accordion-button:not(.collapsed) {
            background: var(--primary);
            color: #fff;
        }
        .accordion-body {
            background: #1b151b;
            color: #eee;
        }
        /* 侧边弹窗 */
        .side-drawer {
            position: fixed; top: 0; right: -700px; width: 380px; height: 100vh;
            background: #221d22; z-index: 1050; transition: right 0.4s ease;
            border-left: 6px solid var(--primary);
            overflow-y: auto;
            padding: 2rem 1.5rem;
            color: #fef2f2;
            box-shadow: -10px 0 40px rgba(0,0,0,0.7);
        }
        .side-drawer.open { right: 0; }
        .drawer-backdrop {
            position: fixed; inset: 0; background: rgba(0,0,0,0.6);
            z-index: 1040; display: none;
        }
        .drawer-backdrop.show { display: block; }
        .movie-detail-poster {
            width: 100%; aspect-ratio: 2/3; object-fit: cover; border: 2px solid var(--accent);
        }
        .close-drawer {
            background: none; border: 2px solid #aaa; color: #fff; width: 35px; height: 35px;
            font-size: 1.5rem; line-height: 1;
        }
        /* 区块间距 */
        .section-block { padding: 4rem 0; border-bottom: 2px dashed #392c39; }
        .numbered::before {
            content: "0" counter(sec);
            counter-increment: sec;
            background: var(--primary);
            color: #fff;
            font-weight: 900;
            padding: 0.2rem 1rem;
            margin-right: 1rem;
        }
        .numbered { counter-increment: sec; }
        .news-card, .tip-card, .outline-card {
            background: #1f181f;
            border: 2px solid #4d3d4d;
            padding: 1.2rem;
            box-shadow: 5px 5px 0 #000;
            transition: 0.1s linear;
        }
        .news-card:hover { border-color: var(--accent); }
        .list-unstyled-custom li { padding: 0.5rem 0; border-bottom: 1px dashed #444; }
        .icon-feature i { color: var(--accent); font-size: 2rem; margin-right: 1rem; }
        .footer { background: #0f0c0f; border-top: 5px solid var(--primary); }
        .footer a { color: #ccc; text-decoration: none; }
        .footer a:hover { color: var(--accent); }
        .hero-media {
            border: 4px solid var(--primary);
            box-shadow: 12px 12px 0 #000;
            width: 100%;
        }
        .typewriter-title {
            overflow: hidden;
            border-right: 0.15em solid var(--accent);
            white-space: nowrap;
            margin: 0 auto;
            letter-spacing: 0.1em;
            animation: typing 3.5s steps(40, end), blink-caret 0.75s step-end infinite;
        }
        @keyframes typing {
            from { width: 0 }
            to { width: 100% }
        }
        @keyframes blink-caret {
            0%, 100% { border-color: transparent }
            50% { border-color: var(--accent); }
        }
        .parallax-bg {
            background-attachment: fixed;
            background-position: center;
            background-repeat: no-repeat;
            background-size: cover;
        }
        /* 分类色块 */
        .category-icon {
            background: var(--primary); padding: 1rem; width: fit-content;
        }

/* --- 子页面追加 --- */
background: linear-gradient(135deg, rgba(20,16,19,.92) 0%, rgba(30,26,30,.85) 100%), url(' {随机图片}
.guide-hero h1 {
            font-size: 3rem;
            font-weight: 900;
            text-shadow: 4px 4px 0 rgba(0,0,0,.6);
        }
.guide-hero .lead {
            color: var(--text-light);
            opacity: .9;
            max-width: 720px;
            margin: 0 auto;
        }
.guide-section {
            padding: 70px 0;
            border-bottom: 1px solid rgba(220,38,38,.15);
        }
.guide-section-alt {
            background: rgba(30,26,30,.4);
        }
.step-card {
            background: var(--card-bg);
            border: 2px solid rgba(220,38,38,.3);
            border-radius: 12px;
            padding: 28px 24px;
            height: 100%;
            transition: all .3s ease;
            position: relative;
        }
.step-card:hover {
            border-color: var(--primary);
            transform: translateY(-6px);
            box-shadow: var(--shadow-hard);
        }
.step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 1.2rem;
            border-radius: 8px;
            margin-bottom: 16px;
            box-shadow: 3px 3px 0 #000;
        }
.tip-box {
            background: rgba(251,146,60,.1);
            border-left: 4px solid var(--accent);
            padding: 18px 22px;
            border-radius: 0 10px 10px 0;
            margin: 24px 0;
        }
.quality-table {
            width: 100%;
            color: var(--text-light);
        }
.quality-table th {
            background: rgba(220,38,38,.25);
            padding: 12px 16px;
            border-bottom: 2px solid var(--primary);
            font-weight: 700;
        }
.quality-table td {
            padding: 12px 16px;
            border-bottom: 1px solid rgba(220,38,38,.15);
            background: rgba(30,26,30,.5);
        }
.badge-red {
            background: var(--primary);
            color: #fff;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: .8rem;
            font-weight: 600;
            display: inline-block;
        }
.device-icon {
            font-size: 2.5rem;
            color: var(--accent);
            margin-bottom: 12px;
        }
.accordion-guide .accordion-item {
            background: var(--card-bg);
            border: 1px solid rgba(220,38,38,.25);
            margin-bottom: 12px;
            border-radius: 10px !important;
            overflow: hidden;
        }
.accordion-guide .accordion-button {
            background: var(--card-bg);
            color: var(--text-light);
            font-weight: 600;
            padding: 18px 22px;
            box-shadow: none;
            border-bottom: 1px solid rgba(220,38,38,.1);
        }
.accordion-guide .accordion-button:not(.collapsed) {
            background: rgba(220,38,38,.2);
            color: var(--text-light);
        }
.accordion-guide .accordion-button::after {
            filter: invert(1) hue-rotate(180deg);
        }
.accordion-guide .accordion-body {
            background: rgba(30,26,30,.6);
            color: var(--text-light);
            padding: 20px 22px;
            line-height: 1.8;
        }
.shortcut-key {
            display: inline-block;
            background: rgba(0,0,0,.5);
            border: 1px solid rgba(255,255,255,.2);
            border-radius: 4px;
            padding: 2px 10px;
            font-family: 'Consolas', monospace;
            font-size: .9rem;
            margin: 0 2px;
            color: var(--accent);
        }
.faq-item {
            margin-bottom: 12px;
        }
.section-icon {
            color: var(--primary);
            margin-right: 8px;
        }

/* --- 子页面追加 --- */
/* 关于我们页面专属样式 */
        .about-hero {
            background: linear-gradient(135deg, rgba(220,38,38,.15) 0%, rgba(251,146,60,.05) 50%, rgba(20,16,19,.8) 100%), var(--bg);
            border-bottom: 2px solid rgba(220,38,38,.3);
            padding: 80px 0 60px;
        }
.about-section {
            padding: 60px 0;
            border-bottom: 1px solid rgba(255,255,255,.06);
        }
.about-section:last-of-type { border-bottom: none; }
.about-card {
            background: var(--card-bg);
            border-left: 4px solid var(--primary);
            padding: 24px;
            margin-bottom: 20px;
            box-shadow: 4px 4px 0 rgba(0,0,0,.4);
            transition: transform .3s ease;
        }
.about-card:hover {
            transform: translateY(-3px);
        }
.about-card h3 {
            color: var(--accent);
            font-size: 1.2rem;
            margin-bottom: 12px;
            font-weight: 600;
        }
.about-card p {
            color: var(--text-light);
            opacity: .85;
            font-size: .95rem;
            line-height: 1.7;
        }
.stat-box {
            text-align: center;
            padding: 30px 16px;
            background: var(--card-bg);
            box-shadow: var(--shadow-hard);
            border: 1px solid rgba(220,38,38,.3);
        }
.stat-box .number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            font-family: 'Inter', sans-serif;
            display: block;
        }
.stat-box .label {
            color: var(--text-light);
            font-size: .85rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-top: 8px;
            opacity: .7;
        }
.timeline {
            position: relative;
            padding-left: 30px;
        }
.timeline::before {
            content: '';
            position: absolute;
            left: 10px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, var(--primary), var(--accent));
        }
.timeline-item {
            position: relative;
            margin-bottom: 36px;
        }
.timeline-item::before {
            content: '';
            position: absolute;
            left: -26px;
            top: 6px;
            width: 14px;
            height: 14px;
            background: var(--primary);
            border: 2px solid var(--bg);
            border-radius: 50%;
            box-shadow: 0 0 0 2px var(--primary);
        }
.timeline-item h4 {
            color: var(--accent);
            font-weight: 600;
            font-size: 1.1rem;
            margin-bottom: 6px;
        }
.timeline-item p {
            color: var(--text-light);
            opacity: .8;
            font-size: .92rem;
        }
.value-item {
            display: flex;
            gap: 16px;
            margin-bottom: 24px;
            background: var(--card-bg);
            padding: 20px;
            box-shadow: 3px 3px 0 rgba(0,0,0,.3);
        }
.value-item i {
            font-size: 1.8rem;
            color: var(--accent);
            width: 50px;
            height: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid rgba(251,146,60,.4);
            border-radius: 8px;
            flex-shrink: 0;
        }
.value-item h3 {
            color: var(--text-light);
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 6px;
        }
.value-item p {
            color: var(--text-light);
            opacity: .75;
            font-size: .9rem;
            line-height: 1.6;
        }
.section-heading {
            font-family: 'Inter', sans-serif;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 36px;
            position: relative;
            display: inline-block;
        }
.section-heading::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 0;
            width: 60px;
            height: 3px;
            background: var(--primary);
        }
.about-hero { padding: 50px 0 40px; }
.about-section { padding: 40px 0; }

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