/* ========================================
   好助手官网 - 深色科技风
   ======================================== */

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-card: #1a2035;
    --bg-card-hover: #1f2a45;
    --text-primary: #e8ecf4;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-blue: #60a5fa;
    --accent-purple: #a78bfa;
    --accent-gold: #fbbf24;
    --accent-gradient: linear-gradient(135deg, #60a5fa, #a78bfa);
    --border-subtle: rgba(148, 163, 184, 0.1);
    --shadow-glow: 0 0 30px rgba(96, 165, 250, 0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", sans-serif;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

section[id] {
    scroll-margin-top: 96px;
}

body {
    font-family: var(--font-stack);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition);
}

img {
    max-width: 100%;
    display: block;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Navbar --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    pointer-events: none;
    background: rgba(10, 14, 26, 0.88);
    box-shadow: 0 1px 0 var(--border-subtle);
    padding: 16px 0;
    transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}

.navbar.scrolled {
    background: rgba(10, 14, 26, 0.92);
    box-shadow: 0 1px 0 var(--border-subtle), 0 4px 20px rgba(0, 0, 0, 0.3);
    padding: 10px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
    pointer-events: none;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    pointer-events: auto;
}

.nav-logo:hover {
    color: var(--accent-blue);
}

.nav-logo .logo-icon {
    flex-shrink: 0;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    pointer-events: auto;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
    position: relative;
    z-index: 1;
    pointer-events: auto;
}

.nav-menu a {
    display: block;
    padding: 8px 18px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
    z-index: 1;
    pointer-events: auto;
    transition: color var(--transition), background var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--accent-blue);
    background: rgba(96, 165, 250, 0.08);
}

/* --- Hero --- */
.hero {
    position: relative;
    isolation: isolate;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    background: radial-gradient(ellipse at 50% 30%, rgba(96, 165, 250, 0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 80%, rgba(167, 139, 250, 0.06) 0%, transparent 50%),
                var(--bg-primary);
}

.hero-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none !important;
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 120px 24px 80px;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-brand {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-sep {
    display: inline-block;
    margin: 0 8px;
    opacity: 0.3;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.35rem);
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-num {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-subtle);
}

.hero-scroll-hint {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.8rem;
    z-index: 1;
    pointer-events: none;
    animation: hint-bounce 2s ease-in-out infinite;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--text-muted);
    border-bottom: 2px solid var(--text-muted);
    transform: rotate(45deg);
}

@keyframes hint-bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
    font-family: inherit;
}

.btn-primary {
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: 0 4px 20px rgba(96, 165, 250, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(96, 165, 250, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--text-secondary);
    border: 1.5px solid var(--border-subtle);
}

.btn-outline:hover {
    color: var(--accent-blue);
    border-color: rgba(96, 165, 250, 0.4);
    background: rgba(96, 165, 250, 0.05);
}

.btn-download {
    background: var(--accent-gradient);
    color: #fff;
    padding: 18px 48px;
    font-size: 1.15rem;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 24px rgba(96, 165, 250, 0.35);
}

.btn-download:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(96, 165, 250, 0.45);
}

/* --- Section Common --- */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 12px;
}

.section-title::after {
    content: '';
    display: block;
    width: 48px;
    height: 3px;
    background: var(--accent-gradient);
    border-radius: 2px;
    margin: 16px auto 0;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

/* --- Features --- */
.features {
    padding: 120px 0;
    background: var(--bg-secondary);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 36px 28px;
    transition: all var(--transition);
}

.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(96, 165, 250, 0.2);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.feature-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: rgba(96, 165, 250, 0.08);
    color: var(--accent-blue);
    margin-bottom: 20px;
}

.feature-card:nth-child(2) .feature-icon { color: var(--accent-purple); background: rgba(167, 139, 250, 0.08); }
.feature-card:nth-child(4) .feature-icon { color: #34d399; background: rgba(52, 211, 153, 0.08); }
.feature-card:nth-child(5) .feature-icon { color: var(--accent-gold); background: rgba(251, 191, 36, 0.08); }
.feature-card:nth-child(6) .feature-icon { color: #f472b6; background: rgba(244, 114, 182, 0.08); }

.feature-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* --- Screenshots --- */
.screenshots {
    padding: 120px 0;
    background: var(--bg-primary);
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.screenshot-item {
    position: relative;
    height: 0;
    padding-top: 62.5%;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border-subtle);
    background: var(--bg-card);
    transition: all var(--transition);
    aspect-ratio: 16 / 10;
}

.screenshot-item:hover {
    border-color: rgba(96, 165, 250, 0.3);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.screenshot-item img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: fill;
}

@supports (aspect-ratio: 16 / 10) {
    .screenshot-item {
        height: auto;
        padding-top: 0;
    }
}

.screenshot-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    background: var(--bg-card);
    color: var(--text-muted);
    font-size: 0.95rem;
}

.screenshot-placeholder svg {
    opacity: 0.4;
}

.screenshots-hint {
    text-align: center;
    color: var(--text-muted);
    margin-top: 32px;
    font-size: 0.9rem;
}

/* --- Download --- */
.download {
    padding: 120px 0;
    background: var(--bg-secondary);
    position: relative;
}

.download::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
}

.download-box {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    position: relative;
    overflow: hidden;
}

.download-box::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(96, 165, 250, 0.06), transparent 70%);
    pointer-events: none;
}

.download-info h2 {
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: 10px;
}

.download-info p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.download-meta {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.meta-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.download-action {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.download-size {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* --- Tools --- */
.tools {
    padding: 120px 0;
    background: var(--bg-secondary);
    position: relative;
}

.tools::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
}

.tools-list {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.tool-item {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 18px 24px;
    transition: all var(--transition);
}

.tool-item:hover {
    border-color: rgba(96, 165, 250, 0.3);
    box-shadow: var(--shadow-glow);
    transform: translateX(4px);
}

.tool-icon {
    width: 60px;
    height: 60px;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
}

.tool-name {
    flex: 1;
    font-size: 0.95rem;
    color: var(--text-primary);
    font-weight: 500;
}

.tool-download {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: color var(--transition);
}

.tool-item:hover .tool-download {
    color: var(--accent-blue);
}

/* --- Tutorial --- */
.tutorial {
    padding: 120px 0;
    background: var(--bg-primary);
    position: relative;
}

.tutorial::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
}

.tutorial-content {
    display: flex;
    gap: 50px;
    justify-content: center;
    align-items: flex-start;
}

.tutorial-section:first-child {
    flex-shrink: 0;
    width: 180px;
}

.tutorial-section h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tutorial-section h3::before {
    content: '';
    width: 3px;
    height: 18px;
    background: var(--accent-gradient);
    border-radius: 2px;
}

.tutorial-doc {
    display: inline-block;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 6px;
    transition: all var(--transition);
}

.tutorial-doc:hover {
    border-color: rgba(96, 165, 250, 0.3);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.tutorial-doc img {
    width: 100%;
    height: 240px;
    border-radius: var(--radius-sm);
}

.tutorial-section-video {
    flex: 1;
    min-width: 0;
    max-width: 560px;
}

.tutorial-video-player {
    position: relative;
    display: block;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    transition: all var(--transition);
    cursor: pointer;
    text-decoration: none;
}

.tutorial-video-player:hover {
    border-color: rgba(96, 165, 250, 0.35);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.tutorial-video-poster {
    display: block;
    width: 100%;
    height: 280px;
    object-fit: cover;
}

.tutorial-video-player::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.1) 0%, rgba(15, 23, 42, 0.55) 100%);
    pointer-events: none;
    transition: background var(--transition);
}

.tutorial-video-player:hover::after {
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.05) 0%, rgba(15, 23, 42, 0.45) 100%);
}

.tutorial-video-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -58%);
    z-index: 2;
    color: #fff;
    filter: drop-shadow(0 4px 24px rgba(0, 0, 0, 0.45));
    transition: transform var(--transition), color var(--transition);
}

.tutorial-video-player:hover .tutorial-video-play {
    transform: translate(-50%, -58%) scale(1.08);
    color: #93c5fd;
}

.tutorial-video-label {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2;
    padding: 14px 16px;
    font-size: 0.9rem;
    font-weight: 600;
    color: #fff;
    text-align: center;
    letter-spacing: 0.02em;
}

@media (max-width: 968px) {
    .tutorial-content {
        flex-direction: column;
        align-items: center;
    }

    .tutorial-section:first-child {
        width: auto;
    }

    .tutorial-section-video {
        max-width: 100%;
        width: 100%;
    }
}

@media (max-width: 640px) {
    .tutorial-doc img {
        width: 100%;
        max-width: 200px;
    }

    .tutorial-video-poster {
        height: 200px;
    }

    .tutorial-video-play svg {
        width: 64px;
        height: 64px;
    }
}

.download-area {
    padding: 120px;
    background: var(--bg-primary);
}

/* --- UpdateLog --- */
.updatelog-section {
    padding: 120px 0;
    background: var(--bg-secondary);
    position: relative;
}

.updatelog-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
}

.updatelog-list {
    max-width: 800px;
    margin: 0 auto;
}

.updatelog-item {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 28px 32px;
    height: 450px;
    overflow-y: auto;
    transition: all var(--transition);
}

.updatelog-item:hover {
    border-color: rgba(96, 165, 250, 0.2);
    box-shadow: var(--shadow-glow);
}

.updatelog-item::-webkit-scrollbar {
    width: 6px;
}

.updatelog-item::-webkit-scrollbar-track {
    background: rgba(148, 163, 184, 0.1);
    border-radius: 3px;
}

.updatelog-item::-webkit-scrollbar-thumb {
    background: rgba(96, 165, 250, 0.3);
    border-radius: 3px;
}

.updatelog-item::-webkit-scrollbar-thumb:hover {
    background: rgba(96, 165, 250, 0.5);
}

.updatelog-date {
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent-blue);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.updatelog-date::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--accent-gradient);
    border-radius: 50%;
}

.updatelog-item ul {
    list-style: none;
    padding: 0;
    margin: 0;
    margin-bottom: 20px;
}

.updatelog-item ul:last-child {
    margin-bottom: 0;
}

.updatelog-item li {
    color: var(--text-secondary);
    font-size: 0.95rem;
    padding: 6px 0;
    padding-left: 20px;
    position: relative;
}

.updatelog-item li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent-purple);
    font-weight: bold;
}

@media (max-width: 640px) {
    .updatelog-item {
        padding: 20px 24px;
    }
}

/* --- Footer --- */
.footer {
    padding: 80px 0 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-contact h4,
.footer-links h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.footer-contact ul,
.footer-links ul {
    list-style: none;
}

.footer-contact li,
.footer-links li {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    padding: 6px 0;
}

.footer-contact em {
    font-style: normal;
    color: var(--text-primary);
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    padding: 6px 0;
    display: block;
}

.footer-links a:hover {
    color: var(--accent-blue);
}

.footer-bottom {
    border-top: 1px solid var(--border-subtle);
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* --- Scroll Animations --- */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

.feature-card.animate-on-scroll {
    transition-delay: calc(var(--card-index, 0) * 0.08s);
}

/* --- Responsive --- */
@media (max-width: 968px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .download-box {
        flex-direction: column;
        text-align: center;
        padding: 40px 32px;
    }

    .download-meta {
        justify-content: center;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 640px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: rgba(10, 14, 26, 0.98);
        backdrop-filter: blur(12px);
        flex-direction: column;
        padding: 16px;
        gap: 4px;
        transform: translateY(-120%);
        transition: transform var(--transition);
        border-bottom: 1px solid var(--border-subtle);
    }

    .nav-menu.open {
        transform: translateY(0);
    }

    .nav-menu a {
        padding: 12px 16px;
        width: 100%;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .screenshots-grid {
        grid-template-columns: 1fr;
    }

    .hero-stats {
        gap: 20px;
    }

    .stat-divider {
        display: none;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
}

.circle {
  position: fixed;
  top: 40%;
  right: 0;
  z-index: 9;
  overflow: visible;
  width: auto;
  height: auto;
}
.customer-service {
  position: relative;
  height: auto;
  width: auto;
  display: flex;
  flex-direction: row;
  align-items: stretch;
}
.cs-content {
  display: flex;
  flex-direction: column;
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-right: none;
  width: 220px;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  border-radius: 10px 0 0 10px;
  white-space: nowrap;
  box-shadow: -2px 0 5px rgba(0, 0, 0, 0.3);
  z-index: 1;
  height: auto;
  margin: 0;
  order: 1;
}
.cs-toggle {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 15px 10px;
  cursor: pointer;
  transition: all 0.3s ease;
  /* background-color: var(--bg-card); */
  background: var(--accent-gradient);
  border: 1px solid var(--border-subtle);
  border-right: none;
  border-radius: 10px 0 0 10px;
  width: 10px;
  height: auto;
  z-index: 2;
  order: 2;
}
.cs-toggle img {
  width: 30px;
  height: 30px;
  margin-bottom: 10px;
}
.cs-toggle span {
  color: var(--text-primary);
  font-size: 16px;
  margin-bottom: 5px;
  writing-mode: vertical-rl;
  text-orientation: upright;
}
.cs-toggle .cs-arrow {
  font-size: 20px;
  transition: transform 0.3s ease;
  writing-mode: vertical-rl;
  text-orientation: upright;
  margin-top: 5px;
  color: white;
}
.cs-content h3 {
  color: var(--text-primary);
  font-size: 18px;
  margin-bottom: 15px;
  text-align: center;
  display:none;
}
.cs-content ul {
  list-style: none;
  padding: 0;
  margin-top: 10px;
}
.cs-content li {
  display: flex;
  align-items: center;
  margin-bottom: 10px;
  padding-right: 10px;
  background-color: rgba(96, 165, 250, 0.08);
  border-radius: 4px;
}
.cs-content li span {
  color: var(--text-secondary);
  font-size: 14px;
  flex: 1;
  text-align: center;
  margin-left: 6px;
}
.qq-online {
  display: flex;
  align-items: center;
  padding: 4px 10px;
  background: var(--accent-gradient);
  color: #fff;
  border-radius: 4px;
  font-size: 12px;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(96, 165, 250, 0.3);
}
.qq-online img {
  width: 16px;
  height: 16px;
  margin-right: 5px;
}
.qq-online:hover {
  opacity: 0.9;
  transform: scale(1.02);
}
.customer-service.active .cs-content {
  transform: translateX(20px);
}
.customer-service.active .cs-toggle {
  transform: translateX(-212px);
}
.customer-service.active .cs-arrow {
  transform: rotate(180deg);
}