/* ============================================================
   useCases.html - 精简后的 CSS
   仅保留页面实际使用的样式，移除未使用的代码
   ============================================================ */

/* 全局重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Inter, sans-serif !important;
}

html {
    scroll-behavior: smooth;
    overflow-y: scroll;
}

body {
    background: #0E121B;
    background-image: url('../images/gg.svg');
    background-repeat: no-repeat;
    background-position: top center;
}

/* Sticky Header */
.sticky-header {
    position: sticky;
    top: 0;
    z-index: 1000;
}

/* Ad Banner */
.ad-banner {
    background: #FFB6C1;
    padding: 8px 0;
    text-align: center;
}

.ad-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.ad-banner span {
    color: #333;
    font-size: 11px;
    font-weight: 500;
}

.header {
    background: rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar {
    background: rgba(0, 0, 0, 0.2);
}

.nav-container {
    max-width: 1200px;
    height: 81px;
    border-radius: 0px 0px 0px 0px;
    margin: 0 auto;
    display: flex;
    align-items: center;
}

.logo img {
      width: 133px;
    margin-right: 60px;
}

.nav-menu {
    display: flex;
    list-style: none;
    height: 100%;
}

.nav-menu li {
    height: 100%;
    display: flex;
    align-items: center;
    position: relative;
    padding: 0 15px;
    cursor: pointer;
}

.nav-menu li::after {
    content: '';
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #6C52FF 0%, #8341FF 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.nav-menu li:hover::after {
    opacity: 1;
}

.nav-menu a {
    text-decoration: none;
    font-size: 14px;
    color: #FFFFFF;
    line-height: 24px;
    font-family: Inter, Inter;
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
}

.nav-menu a.dimmed {
    color: #54555A;
}

.nav-menu a.dimmed .nav-arrow {
    opacity: 0.15;
}

/* .nav-menu>li>a.dimmed::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%) rotate(0deg);
    width: 12px;
    height: 12px;
    background-image: url('../images/下箭头2.png');
    background-size: contain;
    background-repeat: no-repeat;
    opacity: 1;
    pointer-events: none;
} */

.nav-menu a .nav-arrow {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease;
}

.nav-menu a.active .nav-arrow {
    transform: rotate(180deg);
}

.nav-actions {
      display: flex;
    gap: 1.5rem;
    align-items: center;
    height: 100%;
    flex: 1;
    justify-content: flex-end;
}

.nav-actions .nav-link {
    text-decoration: none;
    color: #FFFFFF;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: color 0.3s ease;
    position: relative;
    height: 100%;
}

.nav-actions .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0px;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #6C52FF 0%, #8341FF 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.nav-actions .nav-link:hover::after {
    opacity: 1;
}

.nav-actions .nav-link:hover {
    color: #ffffff;
}

.nav-actions .nav-link .nav-arrow {
    width: 20px;
    height: 20px;
}

.nav-btn {
    padding: 0.75rem 1.75rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 14px;
}

.nav-btn-primary {
    background: linear-gradient(271deg, #FFFFFF 0%, #FFFFFF 52.4%, #FFFFFF 100%);
    color: #181B25;
    transition: all 0.3s ease;
}

.nav-btn-primary:hover {
    background: linear-gradient(271deg, #B6CFFF 0%, #B5B0FF 52.4%, #FACCFF 100%);
    box-shadow: 0 4px 11px rgba(139, 92, 246, 0.4);
}

.nav-btn-outline {
    background: transparent;
    color: #FFFFFF;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.user-dropdown {
    position: relative;
    display: inline-block;
    height: 100%;
    display: flex;
    align-items: center;
}

.user-dropdown-content {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 160px;
    background: #181B25;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.05);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
    overflow: hidden;
    border-radius: 8px;
}

.user-dropdown.active .user-dropdown-content {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-dropdown.active .nav-arrow {
    transform: rotate(180deg);
}

.user-option {
    display: block;
    padding: 10px 16px;
    text-decoration: none;
    color: #FFFFFF;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.user-option:hover {
    background: rgba(108, 82, 255, 0.15);
    color: #A78BFA;
}

.user-option.logout {
    color: #FF4757;
}

.user-option.logout:hover {
    background: rgba(255, 71, 87, 0.15);
    color: #FF6B7A;
}

.lang-dropdown {
    position: relative;
    display: inline-block;
    height: 100%;
    display: flex;
    align-items: center;
}

.lang-dropdown-content {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 136px;
    background: #181B25;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.05);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
    overflow: hidden;
}

.lang-dropdown.active .lang-dropdown-content {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-dropdown.active .nav-arrow {
    transform: rotate(180deg);
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    text-decoration: none;
    color: #FFFFFF;
    font-size: 11px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.lang-option:hover {
    background: rgba(108, 82, 255, 0.15);
    color: #A78BFA;
}

.lang-option.selected {
    color: #A78BFA;
}

.lang-option.selected:hover {
    background: rgba(108, 82, 255, 0.15);
}

.lang-flag {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.menu-dropdown {
    position: relative;
}

.small-icon {
    width: 15px !important;
    height: 15px !important;
}

.menu-dropdown-content {
    position: fixed;
    top: 81px;
    left: 0;
    width: 100%;
    background: #000000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
    overflow: hidden;
    padding: 24px 0;
}

.dropdown-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    gap: 24px;
}

.dropdown-divider {
    width: 1px;
    border: 1px solid #2B303B;
    margin: 0 8px;
    height: 100%;
}

.pricing-dropdown-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    gap: 12px;
}

.pricing-dropdown-inner .dropdown-column {
    display: flex;
    flex-direction: column;
    gap: 9px;
}

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

.menu-dropdown.active .nav-arrow {
    transform: rotate(180deg);
}

.menu-dropdown::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 3px;
    background: linear-gradient(90deg, #6C52FF 0%, #8341FF 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.menu-dropdown.active::after {
    opacity: 1;
}

.dropdown-column {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.dropdown-column-title {
    font-weight: normal;
    font-size: 12px;
    color: #717784;
    line-height: 16px;
    text-align: left;
    padding: 0 16px;
}

.menu-dropdown-content .dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 9px 16px;
    text-decoration: none;
    border-radius: 9px;
    transition: all 0.2s ease;
    background: transparent;
}


.dropdown-item:hover {
    background: #222530;
    border-radius: 11px 11px 11px 11px;
}

.dropdown-icon {
    width: 40px;
    height: 40px;
}

.dropdown-item-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.dropdown-item-title {
    font-weight: normal;
    font-size: 14px;
    color: #FFFFFF;
    line-height: 24px;
    text-align: left;
}

.dropdown-item-desc {
    font-weight: 400;
    font-size: 12px;
    color: #99A0AE;
    line-height: 16px;
    text-align: left;
}

.pricing-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 9px 16px;
    text-decoration: none;
    border-radius: 9px;
    transition: all 0.2s ease;
    background: transparent;
}

.pricing-item:hover {
    background: #222530;
    border-radius: 11px 11px 11px 11px;
}

.pricing-item-content {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.pricing-item-title {
    font-weight: normal;
    font-size: 14px;
    color: #FFFFFF;
    line-height: 24px;
    text-align: left;
}

.pricing-item-desc {
    font-weight: 400;
    font-size: 12px;
    color: #99A0AE;
    line-height: 16px;
    text-align: left;
    width: 226px;
}

.pricing-item-price {
    font-weight: 400;
    font-size: 12px;
    color: #99A0AE;
    line-height: 16px;
    text-align: left;
    margin-left: 16px;
}

.price-row {
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.price-label {
    font-weight: 400;
    font-size: 10px;
    color: #99A0AE;
    line-height: 16px;
    text-align: left;
}

.price-value {
    font-weight: normal;
    font-size: 14px;
    color: #FFFFFF;
    line-height: 24px;
    text-align: left;
}

.price-tag {
    font-size: 10px;
    color: #FFFFFF;
    background: linear-gradient(90deg, #6C52FF 0%, #8341FF 100%);
    padding: 4px 9px;
    border-radius: 12px;
}

.price-tagJ {
    background: linear-gradient(271deg, #B6CFFF 0%, #B5B0FF 52.4%, #FACCFF 100%);
    font-weight: normal;
    font-size: 10px;
    color: #2B303B;
    line-height: 16px;
    text-align: center;
    border-radius: 12px;
    padding: 4px 9px;
}

/* Mobile Navigation */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 19px;
    height: 2px;
    background: #FFFFFF;
}

.mobile-nav-overlay {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 1002;
}

.mobile-nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-nav-drawer {
    display: flex;
    position: fixed;
    top: 0;
    right: 0;
    width: 80%;
    max-width: 241px;
    height: 100%;
    background: #181B25;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 1003;
    overflow-y: auto;
    flex-direction: column;
}

.mobile-nav-drawer.active {
    transform: translateX(0);
}

.mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-nav-logo img {
    width: 105px;
}

.mobile-nav-close {
    background: transparent;
    border: none;
    color: #FFFFFF;
    cursor: pointer;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-nav-close:hover {
    opacity: 0.8;
}

.mobile-nav-menu {
    list-style: none;
    padding: 1rem 0;
    margin: 0;
}

.mobile-nav-menu li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.mobile-nav-menu a {
    display: block;
    padding: 1rem 1.5rem;
    color: #FFFFFF;
    text-decoration: none;
    font-size: 12px;
    font-weight: 500;
    transition: background 0.2s ease;
}

.mobile-nav-menu a:hover {
    background: rgba(255, 255, 255, 0.05);
}

.mobile-nav-actions {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: auto;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-nav-link {
    color: #FFFFFF;
    text-decoration: none;
    font-size: 12px;
    font-weight: 500;
    padding: 0.75rem 1rem;
    text-align: center;
    transition: opacity 0.2s ease;
}

.mobile-nav-link:hover {
    opacity: 0.8;
}

.mobile-nav-btn {
    padding: 0.875rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 11px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    width: 100%;
}

.mobile-nav-btn-primary {
    background: #ffffff;
    color: #181B25;
}

.mobile-nav-btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 11px rgba(139, 92, 246, 0.4);
}

body.drawer-open {
    overflow: hidden;
}

/* Section Titles */
.section-title {
    font-size: clamp(21px, 5vw, 48px);
    line-height: 1.2;
    text-align: center;
    background: linear-gradient(180deg, #FFFFFF 0%, #99A0AE 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.section-subtitle {
    font-weight: 400;
    font-size: clamp(11px, 2vw, 16px);
    color: #CACFD8;
    line-height: 1.6;
    text-align: center;
    margin-top: 12px;
}

.hero {
    padding-bottom: 81px;
}

.btn-group {
    display: flex;
    gap: 15px;
    margin-top: 32px;
}

.btn_white {
    padding: 10px 20px;
    width: fit-content;
    font-size: 14px;
    color: #0E121B;
    line-height: 28px;
    text-align: center;
    background: #ffffff;
    border-radius: 11px;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn_white:hover {
    background: #E5E8FF;
}

.hero-container {
    width: 1160px;
    margin: auto;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.hero-content-left-title {
    font-family: Inter, Inter;
    font-weight: bold;
    font-size: 64px;
    line-height: 72px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    background: linear-gradient(180deg, #FFFFFF 0%, #99A0AE 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-content-left-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.hero-content-left-list-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.hero-content-left-list-item img {
    width: 24px;
    height: 24px;
}

.hero-content-left-list-item span {
    font-weight: 400;
    font-size: 14px;
    color: #CACFD8;
    line-height: 28px;
    text-align: left;
}



.hero-content-left-desc {
    font-weight: 400;
    font-size: 15px;
    color: #CACFD8;
    line-height: 28px;
    text-align: left;
    margin: 32px 0;
}

.hero-content-right {
    position: relative;
    width: 467px;
}

.hero-content-right-mainImg {
    width: 467px;
    position: relative;
    z-index: 1;
}

.type-tag {
    padding: 10px 11px;
    display: flex;
    width: fit-content;
    align-items: center;
    gap: 5px;
    background: #222530;
    border-radius: 11px;
    margin: auto;
    margin-bottom: 18px;
}

.type-tag img {
    width: 18px;
    height: 18px;
}

.type-tag span {
    font-weight: 400;
    font-size: clamp(11px, 2vw, 16px);
    color: #FFFFFF;
    line-height: 1.5;
    text-align: center;
}

.features-content {
    width: 1160px;
    margin: auto;
    padding-top: 81px;
    padding-bottom: 120px;
    /* 栅格布局 */
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.features-content-item {
    display: flex;
    gap: 25px;
    padding: 24px;
    border-radius: 16px 16px 16px 16px;
    border: 1px solid #2B303B;
    cursor: pointer;
    transition: all 0.3s ease;
}

.features-content-item:hover {
    box-shadow: 0 4px 11px rgba(139, 92, 246, 0.4);
    border-color: #8341FF;
}

.features-content-item img {
    width: 56px;
    height: 56px;
}

.features-content-item-main {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.features-content-item-title {
    font-size: 22px;
    color: #FFFFFF;
    line-height: 32px;
    text-align: left;
}

.features-content-item-desc {
    display: flex;
    align-items: center;
    gap: 15px;
}

.features-content-item-desc p {
    font-size: 14px;
    color: #CACFD8;
    line-height: 28px;
    text-align: left;
}

.features-content-item-desc img {
    width: 24px;
    height: 24px;
}

.Start {
    background: linear-gradient(180deg, rgba(65, 49, 153, 0.3) 0%, rgba(108, 82, 255, 0) 50%);
}

.Start-container {
    width: 1160px;
    margin: auto;
    padding-top: 40px;
    padding-bottom: 120px;
}

.Start-content {
    /* 栅格布局 */
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 81px;
}

.Start-content-item {
    border-radius: 16px 16px 16px 16px;
    border: 1px solid #2B303B;
    padding: 24px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.Start-content-item:hover {
    box-shadow: 0 4px 11px rgba(139, 92, 246, 0.4);
    border-color: #8341FF;
}

.Start-content-item-header {
    display: flex;
    gap: 15px;
    margin-bottom: 24px;
}

.Start-content-item-header-info {
    flex: 1;
}

.Start-content-item-header-index {
    width: 52px;
    height: 52px;
    background: #181B25;
    border-radius: 50%;
    font-size: 22px;
    color: #6C52FF;
    line-height: 52px;
    text-align: center;
}

.Start-content-item-header-title {
    font-size: 22px;
    color: #FFFFFF;
    line-height: 32px;
    text-align: left;
}

.Start-content-item-header-desc {
    font-size: 14px;
    color: #CACFD8;
    line-height: 28px;
    text-align: left;
}

.Start-content-item>img {
    width: 100%;
    object-fit: cover;
}

.Tiers {
    padding: 120px;
}

.Tiers-container {
    width: 1160px;
    margin: auto;
}

.Tiers-section-title {
    font-weight: bold;
    font-size: 48px;
    line-height: 56px;
    text-align: center;
    font-style: normal;
    text-transform: none;
    background: linear-gradient(181.09639485973966deg, #B6CFFF 0%, #B5B0FF 52%, #FACCFF 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.Tiers-content {
    /* 栅格布局 */
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 56px;
    margin-top: 64px;
}

.Tiers-content-item {
    box-shadow: inset 0px 3 16px 0px #2B303B, inset 0px -8 8px 0px #181B25;
    border-radius: 11px 11px 11px 11px;
    padding: 24px;
    background-image: url('../images/locations/2.png');
    background-size: 100%;
    background-repeat: no-repeat;
    background-position: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.Tiers-content-item:hover {
    transform: translateY(-10px);
}

.Tiers-content-item-desc {
    font-size: 14px;
    color: #CACFD8;
    line-height: 28px;
    text-align: center;
}

.Tiers-content-item-value {
    font-size: 40px;
    color: #6C52FF;
    line-height: 48px;
    text-align: center;
}

.Tiers-content-item-text {
    font-size: 12px;
    color: #FFFFFF;
    line-height: 28px;
    text-align: center;
}

.FAQ-container {
    padding-top: 120px;
    max-width: 1200px;
    margin: auto;
    margin-bottom: 136px;
}

.FAQ-content {
    margin-top: 64px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.FAQ-item {
    background: #0E121B;
    box-shadow: 0px 1px 3px 0px rgba(10, 13, 20, 0.03);
    border-radius: 12px;
    border: 1px solid #2B303B;
    padding: 24px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.FAQ-item:hover {
    border-color: #6C52FF;
}

.FAQ-item.active {
    border-color: #6C5CE7;
    background: #181B25;
}

.FAQ-item-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.FAQ-item-title {
    font-weight: normal;
    font-size: 22px;
    color: #FFFFFF;
    line-height: 32px;
    text-align: left;
}

.FAQ-item-icon {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease;
}

.FAQ-item-body {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.4s ease, padding-top 0.4s ease, opacity 0.4s ease;
    opacity: 0;
    padding-top: 0;
}

.FAQ-item-body>.FAQ-item-answer {
    overflow: hidden;
}

.FAQ-item.active .FAQ-item-body {
    grid-template-rows: 1fr;
    padding-top: 12px;
    opacity: 1;
}

.FAQ-item-answer {
    font-weight: 400;
    font-size: 15px;
    color: #CACFD8;
    line-height: 28px;
    text-align: left;
}

.FAQ-bottom {
    margin-top: 75px;
    padding: 38px 0;
    background: #181B25;
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.FAQ-bottom-icon {
    width: 48px;
    height: 48px;
    background: #0E121B;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.FAQ-bottom-icon img {
    width: 24px;
    height: 24px;
}

.FAQ-bottom-title {
    font-size: 22px;
    color: #FFFFFF;
    line-height: 32px;
    text-align: center;
    margin-top: 15px;
    margin-bottom: 10px;
}

.FAQ-bottom-desc {
    font-weight: 400;
    font-size: 15px;
    color: #CACFD8;
    line-height: 28px;
    text-align: center;
    margin-bottom: 38px;
}

.btn-group {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 56px;
}

.cta {
    background-image: url(../images/30.svg);
    background-size: cover;
    background-position: center;
}

.cta-container {
    padding: 75px 0;
    background-image: url(../images/31.svg);
    background-size: cover;
    background-position: center;
}

.cta-title {
    font-size: 48px;
    color: #FFFFFF;
    line-height: 56px;
    text-align: center;
    margin-bottom: 12px;
}

.cta-desc {
    font-weight: 400;
    font-size: 15px;
    color: #CACFD8;
    line-height: 28px;
    text-align: center;
    margin-bottom: 23px;
}

.cta-desc span {
    font-weight: 400;
    font-size: 15px;
    color: #CACFD8;
    line-height: 28px;
    text-align: center;
}

.btn-black {
    background: #222530;
    border-radius: 11px;
    padding: 10px 20px;
    font-size: 15px;
    color: #FFFFFF;
    line-height: 28px;
    text-align: center;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    width: fit-content;
}

.btn-black:hover {
    background: #525866;
}

.btn-black img {
    width: 20px;
    height: 20px;
}

.btn-black:hover .btn-arrow-wrap .arrow-default {
    opacity: 0;
}

.btn-black:hover .btn-arrow-wrap .arrow-hover {
    opacity: 1;
}

/* Primary Button */
.btn-primary {
    padding: 10px 20px;
    background: linear-gradient(90deg, #6C52FF 0%, #8341FF 100%);
    border-radius: 11px;
    font-size: 14px;
    color: #FFFFFF;
    line-height: 28px;
    text-align: center;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    width: fit-content;
    margin: auto;
}

.btn-primary:hover {
    background: linear-gradient(90deg, #5A30F7 0%, #5A30F7 100%);
}

.btn-arrow-wrap {
    position: relative;
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.btn-arrow-wrap img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.btn-arrow-wrap .arrow-default {
    opacity: 1;
    transition: opacity 0.3s ease;
}

.btn-arrow-wrap .arrow-hover {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn-primary:hover .btn-arrow-wrap .arrow-default,
.btn-black:hover .btn-arrow-wrap .arrow-default,
.pricing-tab-content-item-btn:hover .btn-arrow-wrap .arrow-default {
    opacity: 0;
}

.btn-primary:hover .btn-arrow-wrap .arrow-hover,
.btn-black:hover .btn-arrow-wrap .arrow-hover,
.pricing-tab-content-item-btn:hover .btn-arrow-wrap .arrow-hover {
    opacity: 1;
}

/* Footer */
.footer {
    padding: 120px 0;
    background: #181B25;
    position: relative;
}

.footer-container {
    max-width: 1200px;
    margin: auto;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.footer-container-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 56px;
}

.footer-container-top-left {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-container-top-left-desc {
    font-weight: 400;
    font-size: 15px;
    color: #CACFD8;
    line-height: 28px;
    text-align: left;
}

.footer-container-top-left-email {
    font-weight: 400;
    font-size: 15px;
    color: #6C52FF;
    line-height: 28px;
    text-align: left;
}

.footer-container-top-left img {
    width: 206px;
}

.footer-container-top-right {
    display: flex;
    gap: 23px;
}

.footer-container-top-right img {
    width: 24px;
    height: 24px;
}

.footer-container-menu {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
}

.footer-container-menu-item {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-container-menu-item-title {
    font-weight: 400;
    font-size: 15px;
    color: #717784;
    line-height: 28px;
    text-align: left;
}

.footer-container-menu-item-desc {
    font-weight: 500;
    font-size: 15px;
    color: #FFFFFF;
    line-height: 28px;
    text-align: left;
}

.footer-container-divider {
    width: 100%;
    height: 0px;
    border: 1px solid #2B303B;
    margin: 64px 0;
}

.footer-container-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-container-bottom-left {
    font-weight: 400;
    font-size: 14px;
    color: #717784;
    line-height: 24px;
    text-align: left;
}

.footer-container-bottom-right {
    display: flex;
    gap: 64px;
    align-items: center;
}

.footer-container-bottom-right p {
    font-weight: 500;
    font-size: 14px;
    color: #717784;
    line-height: 24px;
    text-align: left;
}

/* ============================================================
   平板设备: 578px <= 屏幕宽度 < 771px
   ============================================================ */
@media (max-width: 1023px) {
    .mobile-menu-btn {
        display: flex;
        z-index: 1001;
    }

    .nav-menu {
        display: none !important;
    }

    .nav-actions {
        display: none !important;
    }

    .nav-container {
        height: 70px;
        padding: 0 1.5rem;
    }

    .logo img {
        width: 150px;
    }

    /* Hero Section - Tablet */
    .hero {
        padding-bottom: 60px;
    }

    .hero-container {
        width: 100%;
        padding: 0 1.5rem;
    }

    .hero-content {
        flex-direction: column;
        gap: 40px;
        text-align: center;
    }

    .hero-content-left {
        width: 100%;
    }

    .hero-content-left-title {
        font-size: 48px;
        line-height: 1.2;
        text-align: center;
    }

    .hero-content-left-desc {
        font-size: 18px;
        line-height: 1.6;
        margin: 24px 0;
        text-align: center;
    }

    .hero-content-left-list {
        align-items: center;
    }

    .hero-content-left-list-item {
        justify-content: center;
    }

    .hero-content-left-list-item span {
        font-size: 16px;
        line-height: 1.5;
    }

    .hero-content-left-list-item img {
        width: 24px;
        height: 24px;
    }

    .hero-content-right {
        width: 100%;
        max-width: 500px;
    }

    .hero-content-right-mainImg {
        width: 100%;
        max-width: 500px;
    }

    .btn-group {
        justify-content: center;
        flex-wrap: wrap;
        gap: 16px;
        margin-top: 30px;
    }

    .btn_white {
        font-size: 16px;
        padding: 12px 24px;
        line-height: 1.5;
    }

    /* Features Section - Tablet */
    .features-container {
        padding: 0 1.5rem;
    }

    .features-content {
        width: 100%;
        padding: 60px 1.5rem 100px;
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .features-content-item {
        padding: 24px;
        gap: 20px;
    }

    .features-content-item img {
        width: 56px;
        height: 56px;
    }

    .features-content-item-title {
        font-size: 22px;
        line-height: 1.3;
    }

    .features-content-item-desc p {
        font-size: 15px;
        line-height: 1.5;
    }

    .features-content-item-desc img {
        width: 24px;
        height: 24px;
    }

    /* Start Section - Tablet */
    .Start-container {
        width: 100%;
        padding: 60px 1.5rem;
    }

    .Start-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
        margin-top: 60px;
    }

    .Start-content-item {
        padding: 24px;
    }

    .Start-content-item-header {
        gap: 16px;
        margin-bottom: 24px;
    }

    .Start-content-item-header-index {
        width: 50px;
        height: 50px;
        font-size: 22px;
        line-height: 50px;
    }

    .Start-content-item-header-title {
        font-size: 22px;
        line-height: 1.3;
    }

    .Start-content-item-header-desc {
        font-size: 15px;
        line-height: 1.5;
    }

    /* Tiers Section - Tablet */
    .Tiers {
        padding: 80px 1.5rem;
    }

    .Tiers-container {
        width: 100%;
    }

    .Tiers-section-title {
        font-size: 42px;
        line-height: 1.2;
    }

    .Tiers-content {
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
        margin-top: 50px;
    }

    .Tiers-content-item {
        padding: 24px;
    }

    .Tiers-content-item-desc {
        font-size: 15px;
        line-height: 1.5;
    }

    .Tiers-content-item-value {
        font-size: 40px;
        line-height: 1.3;
    }

    .Tiers-content-item-text {
        font-size: 14px;
        line-height: 1.5;
    }

    /* FAQ Section - Tablet */
    .FAQ-container {
        padding: 80px 1.5rem;
        margin-bottom: 100px;
    }

    .FAQ-content {
        margin-top: 50px;
        gap: 16px;
    }

    .FAQ-item {
        padding: 24px;
    }

    .FAQ-item-title {
        font-size: 20px;
        line-height: 1.4;
    }

    .FAQ-item-icon {
        width: 22px;
        height: 22px;
    }

    .FAQ-item-answer {
        font-size: 16px;
        line-height: 1.6;
    }

    .FAQ-bottom {
        margin-top: 60px;
        padding: 40px 24px;
        border-radius: 20px;
    }

    .FAQ-bottom-icon {
        width: 50px;
        height: 50px;
    }

    .FAQ-bottom-icon img {
        width: 24px;
        height: 24px;
    }

    .FAQ-bottom-title {
        font-size: 22px;
        line-height: 1.3;
        margin-top: 16px;
        margin-bottom: 8px;
    }

    .FAQ-bottom-desc {
        font-size: 16px;
        line-height: 1.5;
        margin-bottom: 30px;
    }

    .FAQ-bottom .btn-group {
        margin-top: 0;
        flex-wrap: wrap;
        gap: 12px;
    }

    /* CTA Section - Tablet */
    .cta-container {
        padding: 60px 1.5rem;
    }

    .cta-title {
        font-size: 36px;
        line-height: 1.3;
    }

    .cta-desc {
        font-size: 16px;
        line-height: 1.6;
    }

    .btn-black {
        font-size: 16px;
        padding: 12px 24px;
        line-height: 1.5;
    }

    .btn-primary {
        font-size: 18px;
        line-height: 32px;
        padding: 12px 24px;
    }

    .footer {
        padding: 100px 1.5rem;
    }

    .footer-container-top {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 30px;
        margin-bottom: 60px;
    }

    .footer-container-menu {
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }

    .footer-container-bottom {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 20px;
    }

    .footer-container-bottom-right {
        gap: 40px;
    }

    .footer-container-top-left img {
        width: 200px;
    }

    .footer-container-top-left-desc,
    .footer-container-top-left-email {
        font-size: 16px;
        line-height: 28px;
    }

    .footer-container-menu-item-title,
    .footer-container-menu-item-desc {
        font-size: 16px;
        line-height: 28px;
    }

    .footer-container-bottom-left,
    .footer-container-bottom-right p {
        font-size: 14px;
        line-height: 24px;
    }
}

/* ============================================================
   移动设备: 屏幕宽度 < 578px
   ============================================================ */
@media (max-width: 767px) {
    .nav-container {
        height: 60px;
        padding: 0 1rem;
    }

    .logo img {
        width: 130px;
    }

    /* Hero Section - Mobile */
    .hero {
        padding-bottom: 40px;
    }

    .hero-container {
        width: 100%;
        padding: 0 1rem;
    }

    .hero-content {
        flex-direction: column;
        gap: 30px;
    }

    .hero-content-left {
        width: 100%;
    }

    .hero-content-left-title {
        font-size: 32px;
        line-height: 1.2;
        text-align: center;
        word-break: break-word;
    }

    .hero-content-left-desc {
        font-size: 16px;
        line-height: 1.5;
        margin: 20px 0;
        text-align: center;
    }

    .hero-content-left-list {
        gap: 12px;
        align-items: flex-start;
    }

    .hero-content-left-list-item {
        gap: 12px;
        flex-wrap: wrap;
    }

    .hero-content-left-list-item span {
        font-size: 14px;
        line-height: 1.4;
    }

    .hero-content-left-list-item img {
        width: 20px;
        height: 20px;
    }

    .hero-content-right {
        width: 100%;
        max-width: 350px;
        margin: 0 auto;
    }

    .hero-content-right-mainImg {
        width: 100%;
        max-width: 350px;
    }

    .btn-group {
        flex-direction: column;
        gap: 12px;
        margin-top: 24px;
        width: 100%;
    }

    .btn-group .btn-primary,
    .btn-group .btn_white {
        width: 100%;
        justify-content: center;
    }

    .btn_white {
        font-size: 15px;
        padding: 12px 20px;
        line-height: 1.4;
    }

    /* Features Section - Mobile */
    .features-container {
        padding: 0 1rem;
    }

    .features-content {
        width: 100%;
        padding: 40px 1rem 60px;
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .features-content-item {
        padding: 20px;
        gap: 16px;
        flex-direction: column;
        align-items: flex-start;
    }

    .features-content-item img {
        width: 48px;
        height: 48px;
    }

    .features-content-item-title {
        font-size: 18px;
        line-height: 1.3;
    }

    .features-content-item-desc {
        gap: 12px;
    }

    .features-content-item-desc p {
        font-size: 14px;
        line-height: 1.4;
    }

    .features-content-item-desc img {
        width: 20px;
        height: 20px;
    }

    /* Start Section - Mobile */
    .Start-container {
        width: 100%;
        padding: 40px 1rem;
    }

    .Start-content {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-top: 40px;
    }

    .Start-content-item {
        padding: 20px;
    }

    .Start-content-item-header {
        gap: 12px;
        margin-bottom: 20px;
        flex-direction: column;
        align-items: flex-start;
    }

    .Start-content-item-header-index {
        width: 40px;
        height: 40px;
        font-size: 18px;
        line-height: 40px;
    }

    .Start-content-item-header-title {
        font-size: 18px;
        line-height: 1.3;
    }

    .Start-content-item-header-desc {
        font-size: 14px;
        line-height: 1.4;
    }

    .Start-content-item>img {
        width: 100%;
        height: auto;
        object-fit: cover;
        border-radius: 12px;
    }

    /* Tiers Section - Mobile */
    .Tiers {
        padding: 50px 1rem;
    }

    .Tiers-container {
        width: 100%;
        padding: 0 1rem;
    }

    .Tiers-section-title {
        font-size: 28px;
        line-height: 1.2;
    }

    .section-subtitle {
        font-size: 14px;
        line-height: 1.5;
        margin-top: 12px;
    }

    .Tiers-content {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-top: 30px;
    }

    .Tiers-content-item {
        padding: 20px;
    }

    .Tiers-content-item-desc {
        font-size: 14px;
        line-height: 1.4;
    }

    .Tiers-content-item-value {
        font-size: 32px;
        line-height: 1.3;
    }

    .Tiers-content-item-text {
        font-size: 13px;
        line-height: 1.4;
    }

    /* FAQ Section - Mobile */
    .FAQ-container {
        padding: 50px 1rem;
        margin-bottom: 60px;
    }

    .FAQ-content {
        margin-top: 30px;
        gap: 12px;
    }

    .FAQ-item {
        padding: 16px;
    }

    .FAQ-item-header {
        flex-wrap: wrap;
        gap: 10px;
    }

    .FAQ-item-title {
        font-size: 16px;
        line-height: 1.3;
        flex: 1;
        min-width: 80%;
    }

    .FAQ-item-icon {
        width: 20px;
        height: 20px;
    }

    .FAQ-item-answer {
        font-size: 14px;
        line-height: 1.5;
    }

    .FAQ-item.active .FAQ-item-body {
        padding-top: 12px;
    }

    .FAQ-bottom {
        margin-top: 40px;
        padding: 30px 16px;
        border-radius: 16px;
    }

    .FAQ-bottom-icon {
        width: 40px;
        height: 40px;
    }

    .FAQ-bottom-icon img {
        width: 20px;
        height: 20px;
    }

    .FAQ-bottom-title {
        font-size: 18px;
        line-height: 1.3;
        margin-top: 12px;
        margin-bottom: 6px;
    }

    .FAQ-bottom-desc {
        font-size: 14px;
        line-height: 1.4;
        margin-bottom: 20px;
    }

    .FAQ-bottom .btn-group {
        flex-direction: column;
        gap: 10px;
        width: 100%;
    }

    .FAQ-bottom .btn-group .btn-primary,
    .FAQ-bottom .btn-group .btn-black {
        width: 100%;
        justify-content: center;
    }

    /* CTA Section - Mobile */
    .cta {
        margin-bottom: 60px;
    }

    .cta-container {
        padding: 40px 1rem;
        border-radius: 16px;
    }

    .cta-title {
        font-size: 22px;
        line-height: 1.3;
        margin-bottom: 16px;
    }

    .cta-desc {
        font-size: 14px;
        line-height: 1.5;
        margin-bottom: 24px;
    }

    .cta .btn-black {
        width: 100%;
        justify-content: center;
        font-size: 15px;
        padding: 12px 20px;
    }

    /* Buttons - Mobile */
    .btn-primary {
        font-size: 15px;
        line-height: 1.4;
        padding: 12px 20px;
    }

    .btn-black {
        font-size: 15px;
        padding: 12px 20px;
        line-height: 1.4;
    }

    .btn-arrow-wrap {
        width: 20px;
        height: 20px;
    }

    /* Type Tag - Mobile */
    .type-tag {
        padding: 8px 12px;
        gap: 4px;
        margin-bottom: 16px;
    }

    .type-tag img {
        width: 18px;
        height: 18px;
    }

    .type-tag span {
        font-size: 13px;
    }

    /* Section Titles - Mobile */
    .section-title {
        font-size: 24px;
        line-height: 1.2;
    }

    /* Footer - Mobile */
    .footer {
        padding: 50px 1rem;
    }

    .footer-container {
        padding: 0;
    }

    .footer-container-top {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
        margin-bottom: 30px;
    }

    .footer-container-top-left img {
        width: 140px;
    }

    .footer-container-top-left-desc,
    .footer-container-top-left-email {
        font-size: 13px;
        line-height: 1.4;
    }

    .footer-container-top-right {
        gap: 16px;
    }

    .footer-container-top-right img {
        width: 24px;
        height: 24px;
    }

    .footer-container-menu {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .footer-container-menu-item {
        gap: 8px;
    }

    .footer-container-menu-item-title {
        font-size: 15px;
        line-height: 1.3;
    }

    .footer-container-menu-item-desc {
        font-size: 13px;
        line-height: 1.4;
    }

    .footer-container-divider {
        margin: 30px 0;
    }

    .footer-container-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }

    .footer-container-bottom-left {
        font-size: 12px;
        line-height: 1.3;
    }

    .footer-container-bottom-right {
        flex-direction: column;
        gap: 8px;
        align-items: center;
    }

    .footer-container-bottom-right p {
        font-size: 12px;
        line-height: 1.3;
    }
}

/* ============================================================
   小屏幕移动设备: 屏幕宽度 < 361px
   ============================================================ */
@media (max-width: 479px) {
    .nav-container {
        height: 56px;
        padding: 0 0.8rem;
    }

    .logo img {
        width: 110px;
    }

    .hero-content-left-title {
        font-size: 26px;
    }

    .hero-content-left-desc {
        font-size: 14px;
    }

    .hero-content-left-list-item span {
        font-size: 13px;
    }

    .hero-content-right-mainImg {
        max-width: 280px;
    }

    .section-title {
        font-size: 20px;
    }

    .Tiers-section-title {
        font-size: 22px;
    }

    .cta-title {
        font-size: 18px;
    }

    .btn_white,
    .btn-primary,
    .btn-black {
        font-size: 14px;
        padding: 10px 16px;
    }

    .features-content-item-title,
    .Start-content-item-header-title,
    .FAQ-item-title,
    .FAQ-bottom-title {
        font-size: 16px;
    }

    .Tiers-content-item-value {
        font-size: 28px;
    }
}

/* Footer hover effects */
.footer-container-menu-item-desc {
    cursor: pointer;
    transition: color 0.3s ease, transform 0.3s ease;
}
.footer-container-menu-item-desc:hover {
    color: #6C52FF;
    transform: translateX(4px);
}
.footer-container-top-right img {
    cursor: pointer;
    transition: transform 0.3s ease, opacity 0.3s ease;
}
.footer-container-top-right img:hover {
    transform: scale(1.15);
    opacity: 0.8;
}
.footer-container-bottom-right p {
    cursor: pointer;
    transition: color 0.3s ease;
}
.footer-container-bottom-right p:hover {
    color: #6C52FF;
}
.footer-container-top-left-email {
    cursor: pointer;
    transition: color 0.3s ease;
}
.footer-container-top-left-email:hover {
    color: #8a78ff;
}