/* ========================================
   PhotoStage 官网样式表
   主题色：黑色 #383838 | 红色 #C5292E
======================================== */

/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #fff;
    padding-top: 72px;
}

body.menu-open {
    overflow: hidden;
}

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

/* ========================================
   导航栏 Header 样式
======================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: linear-gradient(180deg, #383838 0%, #2d2d2d 100%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: transform 0.2s ease;
}

.logo-link:hover {
    transform: scale(1.02);
}

.nav-logo {
    height: 42px;
    width: auto;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.brand-info {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-left: 16px;
    border-left: 1px solid rgba(255, 255, 255, 0.15);
}

.brand-name {
    font-size: 22px;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.3px;
}

.brand-divider {
    width: 4px;
    height: 4px;
    background: rgba(255, 255, 255, 0.4);
    border-radius: 50%;
}

.brand-sub {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    font-weight: 400;
}

.nav-center {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 4px;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.2s ease;
    position: relative;
}

.nav-link .nav-icon {
    width: 16px;
    height: 16px;
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

.nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}

.nav-link:hover .nav-icon {
    opacity: 1;
}

.nav-link.active {
    color: #fff;
    background: rgba(197, 41, 46, 0.15);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    background: #C5292E;
    border-radius: 2px;
}

.nav-link.active .nav-icon {
    opacity: 1;
    color: #C5292E;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.25s ease;
    white-space: nowrap;
}

.btn-icon {
    width: 16px;
    height: 16px;
}

.btn-ghost {
    color: rgba(255, 255, 255, 0.8);
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-ghost:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.35);
    transform: translateY(-1px);
}

.btn-primary {
    color: #fff;
    background: linear-gradient(135deg, #C5292E 0%, #a82226 100%);
    border: none;
    box-shadow: 0 4px 12px rgba(197, 41, 46, 0.35);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #d63035 0%, #b82529 100%);
    box-shadow: 0 6px 20px rgba(197, 41, 46, 0.45);
    transform: translateY(-2px);
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    width: 44px;
    height: 44px;
    padding: 0;
    background: transparent;
    border: none;
    cursor: pointer;
    border-radius: 8px;
    transition: background 0.2s ease;
}

.hamburger:hover {
    background: rgba(255, 255, 255, 0.08);
}

.hamburger-box {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.hamburger-inner,
.hamburger-inner::before,
.hamburger-inner::after {
    position: absolute;
    width: 22px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.hamburger-inner::before,
.hamburger-inner::after {
    content: '';
}

.hamburger-inner::before {
    top: -7px;
}

.hamburger-inner::after {
    bottom: -7px;
}

.hamburger.active .hamburger-inner {
    background: transparent;
}

.hamburger.active .hamburger-inner::before {
    top: 0;
    transform: rotate(45deg);
}

.hamburger.active .hamburger-inner::after {
    bottom: 0;
    transform: rotate(-45deg);
}

/* 移动端菜单 */
.mobile-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(45, 45, 45, 0.98);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 999;
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.mobile-menu-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mobile-link {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 20px;
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    border-radius: 12px;
    transition: all 0.2s ease;
}

.mobile-link:hover,
.mobile-link.active {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}

.mobile-link.active {
    background: rgba(197, 41, 46, 0.15);
}

.mobile-icon {
    width: 20px;
    height: 20px;
    opacity: 0.7;
}

.mobile-link.active .mobile-icon {
    color: #C5292E;
    opacity: 1;
}

.mobile-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin: 16px 0;
}

.mobile-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 24px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.2s ease;
}

.mobile-btn-ghost {
    color: rgba(255, 255, 255, 0.85);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.mobile-btn-ghost:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
}

.mobile-btn-primary {
    color: #fff;
    background: linear-gradient(135deg, #C5292E 0%, #a82226 100%);
    box-shadow: 0 4px 16px rgba(197, 41, 46, 0.4);
}

.mobile-btn-primary:hover {
    box-shadow: 0 6px 24px rgba(197, 41, 46, 0.5);
}

/* 移动端导航响应式 */
@media (max-width: 900px) {
    .nav-center {
        display: none;
    }
    
    .nav-right {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .brand-info {
        display: flex;
    }
    
    .brand-divider {
        display: none;
    }
    
    .brand-sub {
        display: none;
    }
    
    .brand-name {
        font-size: 16px;
    }
    
    .nav-container {
        padding: 0 16px;
    }
}

@media (max-width: 480px) {
    .nav-logo {
        height: 36px;
    }
}

/* ========================================
   页脚 Footer 样式
======================================== */
.site-footer {
    background: #383838;
    color: #fff;
    padding: 48px 0 0;
    margin-top: 0;
}

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

.footer-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 32px;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 14px;
}

.footer-logo-img {
    width: 44px;
    height: 44px;
    border-radius: 10px;
}

.footer-logo-text {
    display: flex;
    flex-direction: column;
}

.footer-logo-name {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    text-align: left;
}

.footer-logo-tagline {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
    text-align: left;
}

.footer-contact {
    display: flex;
    gap: 32px;
}

.footer-contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact-item svg {
    width: 18px;
    height: 18px;
    color: #C5292E;
    flex-shrink: 0;
}

.footer-contact-item a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-contact-item a:hover {
    color: #fff;
}

.footer-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
}

.footer-notice {
    padding: 32px 0;
}

.footer-notice-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.footer-notice-zh {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    margin: 0 0 12px;
}

.footer-notice-en {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
    line-height: 1.7;
    margin: 0;
}

.footer-notice a {
    color: #C5292E;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.footer-notice a:hover {
    color: #ff5a5f;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
}

.footer-copyright {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    margin: 0;
}

.footer-copyright a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-copyright a:hover {
    color: #C5292E;
}

.footer-badges {
    display: flex;
    gap: 16px;
}

.footer-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 6px;
}

.footer-badge svg {
    width: 16px;
    height: 16px;
    color: #C5292E;
}

.footer-badge span {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
}

@media (max-width: 768px) {
    .site-footer {
        padding: 40px 0 0;
    }
    
    .footer-main {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }
    
    .footer-contact {
        flex-direction: column;
        gap: 12px;
    }
    
    .footer-contact-item {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .footer-badges {
        justify-content: center;
    }
}

/* ========================================
   Hero 区域
======================================== */
.hero {
    background: linear-gradient(180deg, #1a1a1a 0%, #2a2a2a 50%, #383838 100%);
    padding: 80px 0 100px;
    position: relative;
    overflow: hidden;
    min-height: 85vh;
    display: flex;
    align-items: center;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    overflow: hidden;
}

.hero-glow-1 {
    position: absolute;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 600px;
    background: radial-gradient(ellipse, rgba(197, 41, 46, 0.12) 0%, transparent 60%);
    filter: blur(80px);
}

.hero-glow-2 {
    position: absolute;
    bottom: -30%;
    left: 20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(197, 41, 46, 0.08) 0%, transparent 60%);
    filter: blur(60px);
}

.hero-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(197, 41, 46, 0.15);
}

.hero-ring-1 {
    width: 600px;
    height: 600px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: ringPulse 8s ease-in-out infinite;
}

.hero-ring-2 {
    width: 450px;
    height: 450px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-color: rgba(197, 41, 46, 0.1);
    animation: ringPulse 8s ease-in-out infinite 1s;
}

.hero-ring-3 {
    width: 300px;
    height: 300px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-color: rgba(197, 41, 46, 0.08);
    animation: ringPulse 8s ease-in-out infinite 2s;
}

@keyframes ringPulse {
    0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 1; transform: translate(-50%, -50%) scale(1.05); }
}

.hero-center {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 18px;
    background: rgba(197, 41, 46, 0.12);
    border: 1px solid rgba(197, 41, 46, 0.25);
    border-radius: 30px;
    margin-bottom: 28px;
}

.hero-tag-dot {
    width: 8px;
    height: 8px;
    background: #C5292E;
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.2); }
}

.hero-tag span {
    font-size: 13px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    letter-spacing: 0.5px;
}

.hero-title {
    margin-bottom: 24px;
}

.hero-title-line {
    display: block;
    font-size: 52px;
    font-weight: 700;
    color: #fff;
    line-height: 1.15;
    letter-spacing: -1px;
}

.hero-title-highlight {
    display: block;
    font-size: 56px;
    font-weight: 800;
    background: linear-gradient(135deg, #C5292E 0%, #ff5a5f 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    letter-spacing: -1px;
}

.hero-desc {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    margin-bottom: 36px;
    max-width: 580px;
    margin-left: auto;
    margin-right: auto;
}

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

.hero-btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 28px;
    background: linear-gradient(135deg, #C5292E 0%, #a82226 100%);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 10px;
    box-shadow: 0 8px 24px rgba(197, 41, 46, 0.4);
    transition: all 0.3s ease;
}

.hero-btn-primary svg {
    width: 18px;
    height: 18px;
}

.hero-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(197, 41, 46, 0.5);
}

.hero-btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 28px;
    background: rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.9);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: all 0.3s ease;
}

.hero-btn-ghost svg {
    width: 18px;
    height: 18px;
}

.hero-btn-ghost:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: 60px;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 24px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 14px;
    transition: all 0.3s ease;
}

.hero-feature:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(197, 41, 46, 0.3);
    transform: translateY(-4px);
}

.hero-feature-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, rgba(197, 41, 46, 0.15) 0%, rgba(197, 41, 46, 0.05) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-feature-icon svg {
    width: 22px;
    height: 22px;
    color: #C5292E;
}

.hero-feature-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
    text-align: left;
}

.hero-feature-title {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
}

.hero-feature-desc {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 1024px) {
    .hero-features {
        flex-wrap: wrap;
        gap: 16px;
    }
    
    .hero-feature {
        flex: 1;
        min-width: 200px;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 50px 0 70px;
        min-height: 80vh;
    }
    
    .hero-title-line {
        font-size: 32px;
    }
    
    .hero-title-highlight {
        font-size: 36px;
    }
    
    .hero-desc {
        font-size: 15px;
    }
    
    .hero-desc br {
        display: none;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-btn-primary,
    .hero-btn-ghost {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .hero-features {
        flex-direction: column;
        align-items: center;
        gap: 12px;
        margin-top: 40px;
    }
    
    .hero-feature {
        width: 100%;
        max-width: 320px;
    }
}

/* ========================================
   核心特性高亮区域
======================================== */
.features-highlight {
    padding: 80px 0;
    background: #f8f9fa;
}

.features-highlight-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.feature-highlight-card {
    text-align: center;
    padding: 32px 20px;
    background: #fff;
    border-radius: 16px;
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-highlight-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
}

.feature-highlight-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, rgba(197, 41, 46, 0.1) 0%, rgba(197, 41, 46, 0.05) 100%);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-highlight-icon svg {
    width: 28px;
    height: 28px;
    color: #C5292E;
}

.feature-highlight-card h3 {
    font-size: 15px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 6px;
}

.feature-highlight-card p {
    font-size: 13px;
    color: #666;
    margin: 0;
}

@media (max-width: 1024px) {
    .features-highlight-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 640px) {
    .features-highlight {
        padding: 50px 0;
    }
    
    .features-highlight-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .feature-highlight-card {
        padding: 24px 16px;
    }
}

/* ========================================
   产品介绍区域
======================================== */
.intro-section {
    padding: 100px 0;
    background: #fff;
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.intro-text h2 {
    font-size: 36px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 20px;
    line-height: 1.3;
}

.intro-text p {
    font-size: 16px;
    color: #555;
    line-height: 1.8;
    margin-bottom: 24px;
}

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

.intro-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    font-size: 15px;
    color: #444;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.intro-features li:last-child {
    border-bottom: none;
}

.intro-features li svg {
    width: 20px;
    height: 20px;
    color: #C5292E;
    flex-shrink: 0;
}

.intro-image {
    position: relative;
}

.intro-image img {
    width: 100%;
    border-radius: 16px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.12);
}

@media (max-width: 900px) {
    .intro-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .intro-image {
        order: -1;
    }
    
    .intro-text h2 {
        font-size: 28px;
    }
}

/* ========================================
   功能区域
======================================== */
.features-section {
    padding: 100px 0;
    background: #fff;
}

.features-section-alt {
    background: #f8f9fa;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-label {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(197, 41, 46, 0.08);
    color: #C5292E;
    font-size: 13px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 16px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0;
}

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

.feature-card {
    padding: 32px;
    background: #fff;
    border-radius: 16px;
    border: 1px solid rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
}

.features-section-alt .feature-card {
    background: #fff;
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
    border-color: rgba(197, 41, 46, 0.2);
}

.feature-icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, rgba(197, 41, 46, 0.1) 0%, rgba(197, 41, 46, 0.05) 100%);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    background: linear-gradient(135deg, #C5292E 0%, #a82226 100%);
}

.feature-icon svg {
    width: 26px;
    height: 26px;
    color: #C5292E;
    transition: color 0.3s ease;
}

.feature-card:hover .feature-icon svg {
    color: #fff;
}

.feature-card h3 {
    font-size: 15px;
    font-weight: 500;
    color: #333;
    line-height: 1.6;
    margin: 0;
}

@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .features-section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   使用场景区域
======================================== */
.use-cases-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
}

.use-cases-section .section-label {
    background: rgba(197, 41, 46, 0.15);
    color: #ff6b6b;
}

.use-cases-section .section-title {
    color: #fff;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.use-case-card {
    text-align: center;
    padding: 32px 20px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    transition: all 0.3s ease;
}

.use-case-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(197, 41, 46, 0.3);
    transform: translateY(-6px);
}

.use-case-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    background: rgba(197, 41, 46, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.use-case-icon svg {
    width: 26px;
    height: 26px;
    color: #C5292E;
}

.use-case-text {
    font-size: 14px;
    font-weight: 600;
    color: #fff;
}

@media (max-width: 1024px) {
    .use-cases-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 640px) {
    .use-cases-section {
        padding: 60px 0;
    }
    
    .use-cases-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
}

/* ========================================
   四步骤区域
======================================== */
.steps-section {
    padding: 100px 0;
    background: #fff;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.step-card {
    text-align: center;
    padding: 40px 24px;
    background: #f8f9fa;
    border-radius: 16px;
    position: relative;
    transition: all 0.3s ease;
}

.step-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
}

.step-number {
    width: 56px;
    height: 56px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #C5292E 0%, #a82226 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    color: #fff;
}

.step-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 10px;
}

.step-card p {
    font-size: 14px;
    color: #666;
    margin: 0;
}

@media (max-width: 1024px) {
    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .steps-section {
        padding: 60px 0;
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

/* ========================================
   用户评价区域
======================================== */
.testimonial-section {
    padding: 100px 0;
    background: #f8f9fa;
}

.testimonial-card {
    max-width: 800px;
    margin: 0 auto;
    padding: 48px;
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.06);
}

.testimonial-content {
    position: relative;
}

.testimonial-quote {
    width: 48px;
    height: 48px;
    color: rgba(197, 41, 46, 0.15);
    margin-bottom: 24px;
}

.testimonial-content p {
    font-size: 17px;
    color: #444;
    line-height: 1.9;
    margin-bottom: 32px;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.testimonial-name {
    font-size: 16px;
    font-weight: 600;
    color: #1a1a1a;
}

.testimonial-title {
    font-size: 14px;
    color: #888;
}

@media (max-width: 640px) {
    .testimonial-section {
        padding: 60px 0;
    }
    
    .testimonial-card {
        padding: 32px 24px;
    }
    
    .testimonial-content p {
        font-size: 15px;
    }
}

/* ========================================
   定价区域
======================================== */
.pricing-horizontal {
    padding: 100px 0;
    background: #fff;
}

.pricing-h-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
    padding: 48px 56px;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    border-radius: 24px;
    position: relative;
    overflow: hidden;
}

.pricing-h-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(197, 41, 46, 0.15) 0%, transparent 60%);
    pointer-events: none;
}

.pricing-h-info {
    flex: 1;
    position: relative;
    z-index: 1;
}

.pricing-h-badge {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(197, 41, 46, 0.15);
    color: #ff6b6b;
    font-size: 12px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 16px;
}

.pricing-h-title {
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
}

.pricing-h-desc {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 24px;
}

.pricing-h-features {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px 24px;
}

.pricing-h-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.85);
}

.pricing-h-features li svg {
    width: 18px;
    height: 18px;
    color: #C5292E;
    flex-shrink: 0;
}

.pricing-h-action {
    text-align: center;
    position: relative;
    z-index: 1;
}

.pricing-h-price {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 20px;
}

.price-original {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.4);
    text-decoration: line-through;
}

.price-current {
    font-size: 48px;
    font-weight: 800;
    color: #fff;
    line-height: 1;
}

.price-period {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 6px;
}

.pricing-h-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 40px;
    background: linear-gradient(135deg, #C5292E 0%, #a82226 100%);
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(197, 41, 46, 0.4);
    transition: all 0.3s ease;
}

.pricing-h-btn svg {
    width: 18px;
    height: 18px;
}

.pricing-h-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(197, 41, 46, 0.5);
}

.pricing-h-note {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    margin-top: 16px;
}

@media (max-width: 900px) {
    .pricing-h-card {
        flex-direction: column;
        text-align: center;
        padding: 40px 32px;
    }
    
    .pricing-h-features {
        grid-template-columns: 1fr;
        justify-items: center;
    }
    
    .pricing-h-title {
        font-size: 24px;
    }
}

/* ========================================
   下载区域 - 浅色设计
======================================== */
.download-section-light {
    padding: 80px 0;
    background: #f8f9fa;
}

.download-header-light {
    text-align: center;
    margin-bottom: 48px;
}

.download-title-light {
    font-size: 32px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 12px;
}

.download-subtitle-light {
    font-size: 16px;
    color: #666;
}

.download-grid-light {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    max-width: 900px;
    margin: 0 auto 40px;
}

.download-item-light {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 24px 16px;
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.download-item-light:hover {
    border-color: #C5292E;
    box-shadow: 0 8px 24px rgba(197, 41, 46, 0.12);
    transform: translateY(-4px);
}

.download-item-light svg {
    width: 32px;
    height: 32px;
    color: #383838;
    transition: color 0.3s ease;
}

.download-item-light:hover svg {
    color: #C5292E;
}

.download-item-name {
    font-size: 14px;
    font-weight: 600;
    color: #1a1a1a;
}

.download-item-desc {
    font-size: 12px;
    color: #888;
}

.download-requirements {
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.download-requirements h3 {
    font-size: 14px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 8px;
}

.download-requirements p {
    font-size: 13px;
    color: #666;
    margin: 0;
}

@media (max-width: 768px) {
    .download-grid-light {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 480px) {
    .download-grid-light {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ========================================
   CTA 区域
======================================== */
.cta {
    padding: 100px 0;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-size: 36px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
}

.cta-subtitle {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 36px;
}

.cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 32px;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.cta-btn-primary {
    background: linear-gradient(135deg, #C5292E 0%, #a82226 100%);
    color: #fff;
    box-shadow: 0 8px 24px rgba(197, 41, 46, 0.4);
}

.cta-btn-primary svg {
    width: 18px;
    height: 18px;
}

.cta-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(197, 41, 46, 0.5);
}

.cta-btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.cta-btn-secondary svg {
    width: 18px;
    height: 18px;
}

.cta-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.35);
}

.cta-platforms {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.cta-platforms span {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
}

.cta-platform-icons {
    display: flex;
    gap: 12px;
}

.cta-platform-icons svg {
    width: 24px;
    height: 24px;
    color: rgba(255, 255, 255, 0.5);
    transition: color 0.2s ease;
}

.cta-platform-icons svg:hover {
    color: #fff;
}

@media (max-width: 640px) {
    .cta {
        padding: 60px 0;
    }
    
    .cta-title {
        font-size: 28px;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
}

/* ========================================
   FAQ 页面样式
======================================== */

/* FAQ Hero */
.faq-hero {
    background: linear-gradient(180deg, #1a1a1a 0%, #2a2a2a 50%, #383838 100%);
    padding: 100px 0 80px;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.faq-hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(197, 41, 46, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.faq-hero-label {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(197, 41, 46, 0.12);
    border: 1px solid rgba(197, 41, 46, 0.25);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 20px;
}

.faq-hero-title {
    font-size: 48px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.faq-hero-desc {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.7);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
}

/* FAQ 内容区域 */
.faq-content {
    padding: 80px 0;
    background: #f8f9fa;
}

/* FAQ 分类 */
.faq-category {
    margin-bottom: 48px;
}

.faq-category-title {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 24px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid #e8e8e8;
}

.faq-category-title svg {
    width: 28px;
    height: 28px;
    color: #C5292E;
}

/* FAQ 列表 */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    transition: box-shadow 0.3s ease;
}

.faq-item:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.faq-item.active {
    box-shadow: 0 8px 24px rgba(197, 41, 46, 0.1);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    text-align: left;
    transition: background 0.3s ease;
}

.faq-question:hover {
    background: rgba(197, 41, 46, 0.03);
}

.faq-item.active .faq-question {
    background: rgba(197, 41, 46, 0.05);
}

.faq-question span {
    font-size: 16px;
    font-weight: 600;
    color: #1a1a1a;
    line-height: 1.5;
}

.faq-icon {
    width: 24px;
    height: 24px;
    color: #999;
    flex-shrink: 0;
    transition: transform 0.3s ease, color 0.3s ease;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
    color: #C5292E;
}

.faq-answer {
    display: grid;
    grid-template-rows: 0fr;
    overflow: hidden;
    transition: grid-template-rows 0.4s ease-out;
}

.faq-answer-inner {
    min-height: 0;
    overflow: hidden;
}

.faq-item.active .faq-answer {
    grid-template-rows: 1fr;
}

.faq-item.active .faq-answer-inner {
    padding: 16px 24px 24px;
}

.faq-answer p {
    font-size: 15px;
    color: #555;
    line-height: 1.8;
    margin-bottom: 16px;
}

.faq-answer p:last-child {
    margin-bottom: 0;
}

.faq-answer h4 {
    font-size: 15px;
    font-weight: 600;
    color: #1a1a1a;
    margin: 20px 0 12px;
}

.faq-answer ol,
.faq-answer ul {
    margin: 0 0 16px 0;
    padding-left: 24px;
}

.faq-answer li {
    font-size: 15px;
    color: #555;
    line-height: 1.8;
    margin-bottom: 8px;
}

.faq-answer a {
    color: #C5292E;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.faq-answer a:hover {
    color: #a82226;
    text-decoration: underline;
}

/* 更多帮助 */
.faq-more-help {
    margin-top: 60px;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    border-radius: 24px;
    padding: 48px;
    text-align: center;
}

.faq-more-help h3 {
    font-size: 24px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
}

.faq-more-help p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 32px;
}

.faq-more-help-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.faq-help-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.faq-help-btn svg {
    width: 18px;
    height: 18px;
}

.faq-help-btn-primary {
    background: linear-gradient(135deg, #C5292E 0%, #a82226 100%);
    color: #fff;
}

.faq-help-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(197, 41, 46, 0.4);
}

.faq-help-btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
}

.faq-help-btn-secondary:hover {
    background: #fff;
    color: #1a1a1a;
}

/* FAQ 响应式 */
@media (max-width: 768px) {
    .faq-hero {
        padding: 80px 0 60px;
    }
    
    .faq-hero-title {
        font-size: 32px;
    }
    
    .faq-content {
        padding: 60px 0;
    }
    
    .faq-category-title {
        font-size: 20px;
    }
    
    .faq-question {
        padding: 16px 20px;
    }
    
    .faq-question span {
        font-size: 15px;
    }
    
    .faq-item.active .faq-answer-inner {
        padding: 16px 20px 20px;
    }
    
    .faq-more-help {
        padding: 32px 24px;
    }
    
    .faq-more-help-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .faq-help-btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
}

/* ========================================
   截图页面样式
======================================== */
.screenshots-section {
    padding: 80px 0;
    background: #fff;
}

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

.screenshot-card {
    background: #f8f9fa;
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.screenshot-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
}

.screenshot-image {
    position: relative;
    overflow: hidden;
}

.screenshot-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.4s ease;
}

.screenshot-card:hover .screenshot-image img {
    transform: scale(1.05);
}

.screenshot-info {
    padding: 20px;
}

.screenshot-info h3 {
    font-size: 16px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 6px;
}

.screenshot-info p {
    font-size: 14px;
    color: #666;
    margin: 0;
}

@media (max-width: 900px) {
    .screenshots-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .screenshots-section {
        padding: 50px 0;
    }
    
    .screenshots-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   支持页面样式
======================================== */

/* Hero 区域 */
.support-hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    text-align: center;
}

.support-hero-label {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(197, 41, 46, 0.15);
    color: #C5292E;
    font-size: 14px;
    font-weight: 600;
    border-radius: 30px;
    margin-bottom: 20px;
}

.support-hero-title {
    font-size: 48px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.support-hero-desc {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* 支持方式 */
.support-options {
    padding: 80px 0;
    background: #f8f9fa;
}

.support-options-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.support-option-card {
    background: #fff;
    border-radius: 20px;
    padding: 36px 28px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
}

.support-option-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.support-option-primary {
    background: linear-gradient(135deg, #C5292E 0%, #a82226 100%);
}

.support-option-primary .support-option-icon {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
}

.support-option-primary .support-option-title,
.support-option-primary .support-option-desc {
    color: #fff;
}

.support-option-primary .support-option-desc {
    opacity: 0.9;
}

.support-option-icon {
    width: 64px;
    height: 64px;
    background: rgba(197, 41, 46, 0.1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: #C5292E;
}

.support-option-icon svg {
    width: 28px;
    height: 28px;
}

.support-option-title {
    font-size: 20px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 12px;
}

.support-option-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.7;
    margin-bottom: 24px;
}

.support-option-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: #fff;
    color: #C5292E;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.support-option-btn:hover {
    transform: translateX(4px);
}

.support-option-btn svg {
    width: 16px;
    height: 16px;
    transition: transform 0.3s ease;
}

.support-option-btn:hover svg {
    transform: translateX(4px);
}

.support-option-btn-secondary {
    background: rgba(197, 41, 46, 0.1);
}

.support-option-btn-secondary:hover {
    background: rgba(197, 41, 46, 0.15);
}

/* 快速帮助 */
.support-quick {
    padding: 80px 0;
    background: #fff;
}

.support-quick-header {
    text-align: center;
    margin-bottom: 48px;
}

.support-quick-title {
    font-size: 32px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 12px;
}

.support-quick-desc {
    font-size: 16px;
    color: #666;
}

.support-quick-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.support-quick-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px 28px;
    background: #f8f9fa;
    border-radius: 16px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.support-quick-card:hover {
    background: #fff;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    transform: translateX(4px);
}

.support-quick-icon {
    width: 52px;
    height: 52px;
    background: rgba(197, 41, 46, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.support-quick-icon svg {
    width: 24px;
    height: 24px;
    color: #C5292E;
}

.support-quick-content {
    flex: 1;
}

.support-quick-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 4px;
}

.support-quick-content p {
    font-size: 14px;
    color: #666;
    margin: 0;
}

.support-quick-arrow {
    width: 20px;
    height: 20px;
    color: #ccc;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.support-quick-card:hover .support-quick-arrow {
    color: #C5292E;
    transform: translateX(4px);
}

/* 下载资源 */
.support-resources {
    padding: 80px 0;
    background: #f8f9fa;
}

.support-resources-header {
    text-align: center;
    margin-bottom: 48px;
}

.support-resources-title {
    font-size: 32px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 12px;
}

.support-resources-desc {
    font-size: 16px;
    color: #666;
}

.support-resources-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.support-resource-card {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 20px 24px;
    background: #fff;
    border-radius: 12px;
    text-decoration: none;
    color: #333;
    font-size: 15px;
    font-weight: 600;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.support-resource-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    color: #C5292E;
}

.support-resource-card svg {
    width: 24px;
    height: 24px;
}

/* 联系信息 */
.support-contact {
    padding: 80px 0;
    background: #fff;
}

.support-contact-card {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 60px;
    align-items: center;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    border-radius: 24px;
    padding: 48px 56px;
}

.support-contact-info h3 {
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
}

.support-contact-info > p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 32px;
}

.support-contact-details {
    display: flex;
    flex-wrap: wrap;
    gap: 32px;
}

.support-contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.support-contact-item svg {
    width: 24px;
    height: 24px;
    color: #C5292E;
}

.support-contact-item .label {
    display: block;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 4px;
}

.support-contact-item a,
.support-contact-item span:not(.label) {
    color: #fff;
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
}

.support-contact-item a:hover {
    color: #C5292E;
}

.support-contact-action {
    text-align: center;
}

.support-contact-cta {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 32px 40px;
}

.support-contact-cta h4 {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
}

.support-contact-cta p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
}

.support-contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: #C5292E;
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.support-contact-btn:hover {
    background: #a82226;
    transform: translateY(-2px);
}

.support-contact-btn svg {
    width: 18px;
    height: 18px;
}

/* 支持页面响应式 */
@media (max-width: 1024px) {
    .support-options-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .support-resources-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .support-contact-card {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .support-hero {
        padding: 120px 0 60px;
    }
    
    .support-hero-title {
        font-size: 32px;
    }
    
    .support-hero-desc {
        font-size: 16px;
    }
    
    .support-options {
        padding: 60px 0;
    }
    
    .support-options-grid {
        grid-template-columns: 1fr;
    }
    
    .support-quick-grid {
        grid-template-columns: 1fr;
    }
    
    .support-quick-title,
    .support-resources-title {
        font-size: 26px;
    }
    
    .support-resources-grid {
        grid-template-columns: 1fr;
    }
    
    .support-contact-card {
        padding: 32px 24px;
    }
    
    .support-contact-info h3 {
        font-size: 22px;
    }
    
    .support-contact-details {
        flex-direction: column;
        gap: 20px;
    }
}

/* ========================================
   通用工具类
======================================== */
.text-center {
    text-align: center;
}

.mt-40 {
    margin-top: 40px;
}

.mb-40 {
    margin-bottom: 40px;
}