/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 变量定义 */
:root {
    --color-primary: #3B82F6;
    --color-primary-light: #60A5FA;
    --color-secondary: #10B981;
    --color-accent: #F59E0B;
    --color-dark: #1E293B;
    --color-light: #F8FAFC;
    --color-gray: #64748B;
    --color-gray-light: #E2E8F0;
    --font-main: 'Helvetica Neue', Arial, sans-serif;
    --border-radius: 1rem;
    --transition: all 0.3s ease;
}

/* 全局样式 */
body {
    font-family: var(--font-main);
    background-color: var(--color-light);
    color: var(--color-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* 头部导航 */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.header__container {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem 0;
}

.header__logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header__logo-image {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 0.5rem;
    transition: var(--transition);
}

.header__logo-image:hover {
    transform: rotate(12deg);
}

.header__logo-text {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--color-primary);
}

/* 导航菜单 */
.nav {
    display: none;
}

/* 手风琴菜单 - 小屏幕 */
.accordion-menu {
    position: relative;
}

.accordion-menu__toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 0.75rem 1.5rem;
    background-color: var(--color-light);
    border: 1px solid var(--color-gray-light);
    border-radius: 0.5rem;
    font-weight: 500;
    color: var(--color-dark);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.accordion-menu__toggle:hover {
    background-color: rgba(59, 130, 246, 0.1);
    border-color: var(--color-primary-light);
}

.accordion-menu__toggle-icon {
    font-size: 0.75rem;
    transition: var(--transition);
}

.accordion-menu__toggle--open .accordion-menu__toggle-icon {
    transform: rotate(180deg);
}

.accordion-menu__content {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: white;
    border: 1px solid var(--color-gray-light);
    border-radius: 0 0 0.5rem 0.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-10px);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1000;
    margin-top: 0.25rem;
}

.accordion-menu__content--open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.accordion-menu__list {
    list-style: none;
    padding: 0.5rem 0;
}

.accordion-menu__item {
    padding: 0;
}

.accordion-menu__link {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--color-dark);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    white-space: nowrap;
}

.accordion-menu__link:hover {
    color: var(--color-primary);
    background-color: rgba(59, 130, 246, 0.1);
}

.accordion-menu__link--active {
    color: var(--color-primary);
    background-color: rgba(59, 130, 246, 0.1);
}

/* 手风琴子菜单 */
.accordion-submenu {
    /* 移除底部边框 */
}

.accordion-submenu:first-child {
    border-top: none;
}

.accordion-submenu__toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 0.75rem 1.5rem;
    background-color: transparent;
    border: none;
    text-align: left;
    font-weight: 500;
    color: var(--color-dark);
    cursor: pointer;
    transition: var(--transition);
}

.accordion-submenu__toggle:hover {
    background-color: rgba(59, 130, 246, 0.05);
}

.accordion-submenu__toggle-icon {
    font-size: 0.75rem;
    transition: var(--transition);
    margin-left: 0.5rem;
}

.accordion-submenu--single {
    border-bottom: none;
}

.accordion-submenu--single .accordion-submenu__link {
    display: block;
    padding: 0.75rem 1.5rem;
    background-color: transparent;
    border: none;
    text-align: left;
    font-weight: 500;
    color: var(--color-dark);
    text-decoration: none;
    transition: var(--transition);
}

.accordion-submenu--single .accordion-submenu__link:hover {
    background-color: rgba(59, 130, 246, 0.05);
    color: var(--color-primary);
}

.accordion-submenu--single .accordion-submenu__link--active {
    color: var(--color-primary);
    font-weight: 600;
}

.accordion-submenu__toggle--open .accordion-submenu__toggle-icon {
    transform: rotate(90deg);
}

.accordion-submenu__content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    background-color: rgba(248, 250, 252, 0.5);
}

.accordion-submenu__content--open {
    max-height: 300px;
    transition: max-height 0.5s ease-in;
}

.accordion-submenu__list {
    list-style: none;
    padding: 0;
}

.accordion-submenu__item {
    padding: 0;
}

.accordion-submenu__link {
    display: block;
    padding: 0.5rem 1.5rem 0.5rem 2.5rem;
    color: var(--color-dark);
    text-decoration: none;
    font-weight: 400;
    transition: var(--transition);
    white-space: nowrap;
    font-size: 0.95rem;
}

.accordion-submenu__link:hover {
    color: var(--color-primary);
    background-color: rgba(59, 130, 246, 0.1);
}

.accordion-submenu__link--active {
    color: var(--color-primary);
    background-color: rgba(59, 130, 246, 0.1);
    font-weight: 500;
}

/* 下载按钮 */
.download-btn {
    display: none;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    border: none;
    border-radius: 9999px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.download-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.15);
}

/* 桌面端菜单 */
.desktop-menu {
    position: relative;
    display: none;
}

.desktop-menu__list {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
    gap: 1rem;
}

.desktop-menu__item {
    position: relative;
}

.desktop-menu__link {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--color-dark);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    border-radius: 0.5rem;
}

.desktop-menu__link:hover {
    color: var(--color-primary);
    background-color: rgba(59, 130, 246, 0.05);
}

.desktop-menu__link--active {
    color: var(--color-primary);
    background-color: rgba(59, 130, 246, 0.1);
}

/* 桌面端子菜单 */
.desktop-menu__submenu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 200px;
    background-color: white;
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
    border-radius: 0.5rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 100;
    margin-top: 0.5rem;
}

.desktop-menu__item--has-submenu:hover .desktop-menu__submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.desktop-menu__submenu-list {
    list-style: none;
    padding: 0.5rem 0;
    margin: 0;
}

.desktop-menu__submenu-item {
    padding: 0;
}

.desktop-menu__submenu-link {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--color-dark);
    text-decoration: none;
    transition: var(--transition);
}

.desktop-menu__submenu-link:hover {
    color: var(--color-primary);
    background-color: rgba(59, 130, 246, 0.05);
}

/* 底部悬浮菜单 */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: white;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.bottom-nav__container {
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 0.5rem 0;
}

.bottom-nav__item {
    position: relative;
    flex: 1;
    text-align: center;
}

.bottom-nav__link {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    color: var(--color-dark);
    text-decoration: none;
    transition: var(--transition);
}

.bottom-nav__link:hover {
    color: var(--color-primary);
}

.bottom-nav__link--active {
    color: var(--color-primary);
}

.bottom-nav__icon {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.bottom-nav__text {
    font-size: 0.75rem;
    font-weight: 500;
}

/* 底部悬浮菜单子菜单 */
.bottom-nav__submenu {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    max-width: 280px;
    background-color: white;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    border-radius: 1rem;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    overflow: hidden;
}

.bottom-nav__submenu-header {
    display: flex;
    justify-content: flex-end;
    padding: 0.5rem;
    border-bottom: 1px solid #f0f0f0;
}

.bottom-nav__submenu-close {
    width: 2rem;
    height: 2rem;
    border: none;
    background-color: transparent;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    color: #666;
}

.bottom-nav__submenu-close:hover {
    background-color: #f0f0f0;
    color: #333;
}

.bottom-nav__submenu--open {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

.bottom-nav__submenu-container {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.bottom-nav__submenu-link {
    color: var(--color-dark);
    text-decoration: none;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    transition: var(--transition);
    text-align: center;
    font-weight: 500;
    background-color: #f8f9fa;
}

.bottom-nav__submenu-link:hover {
    color: var(--color-primary);
    background-color: rgba(59, 130, 246, 0.1);
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background-color: transparent;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    z-index: 102;
}

.menu-toggle:hover {
    background-color: var(--color-gray-light);
}

.menu-toggle__icon {
    font-size: 1.5rem;
    color: var(--color-dark);
}

/* 移动端菜单 */
.mobile-menu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: white;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 101;
    border-radius: 0.5rem;
}

.mobile-menu--open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    z-index: 101;
}

.mobile-menu__container {
    padding: 1rem;
}

/* 九宫格菜单 */
.mobile-menu__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.mobile-menu__grid-item {
    text-align: center;
}

.mobile-menu__grid-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 0.25rem;
    color: var(--color-dark);
    text-decoration: none;
    border-radius: 0.5rem;
    transition: var(--transition);
    min-height: 60px;
}

.mobile-menu__grid-link:hover {
    color: var(--color-primary);
    background-color: rgba(59, 130, 246, 0.05);
}

.mobile-menu__grid-link--active {
    color: var(--color-primary);
    background-color: rgba(59, 130, 246, 0.1);
}

.mobile-menu__grid-icon {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.mobile-menu__grid-text {
    font-size: 0.75rem;
    font-weight: 500;
}

.mobile-menu__download-btn {
    margin-top: 0.5rem;
    width: 100%;
    padding: 0.75rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    border: none;
    border-radius: 9999px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    text-decoration: none;
    font-size: 0.875rem;
}

.mobile-menu__download-btn:hover {
    transform: scale(1.02);
}

/* 移动端手风琴菜单 */
.mobile-accordion {
    border-bottom: 1px solid var(--color-gray-light);
}

.mobile-accordion:first-child {
    border-top: none;
}

.mobile-accordion__toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 1rem 0;
    background-color: transparent;
    border: none;
    text-align: left;
    font-weight: 500;
    color: var(--color-dark);
    cursor: pointer;
    transition: var(--transition);
}

.mobile-accordion__toggle:hover {
    color: var(--color-primary);
}

.mobile-accordion__toggle-icon {
    font-size: 0.75rem;
    transition: var(--transition);
}

.mobile-accordion__toggle--open .mobile-accordion__toggle-icon {
    transform: rotate(180deg);
}

.mobile-accordion__content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.mobile-accordion__content--open {
    max-height: 300px;
    transition: max-height 0.5s ease-in;
}

.mobile-accordion__list {
    list-style: none;
    padding: 0;
}

.mobile-accordion__item {
    padding: 0;
}

.mobile-accordion__link {
    display: block;
    padding: 0.75rem 0 0.75rem 1.5rem;
    color: var(--color-dark);
    text-decoration: none;
    font-weight: 400;
    transition: var(--transition);
    font-size: 0.95rem;
}

.mobile-accordion__link:hover {
    color: var(--color-primary);
    background-color: rgba(59, 130, 246, 0.1);
}

.mobile-accordion__link--active {
    color: var(--color-primary);
    background-color: rgba(59, 130, 246, 0.1);
    font-weight: 500;
}

/* 英雄区域 */
.hero {
    position: relative;
    height: 90vh;
    min-height: 600px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero__background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    z-index: -1;
}

.hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.8) 100%);
    z-index: -1;
}

.hero__content {
    text-align: center;
    color: white;
    z-index: 1;
    padding: 0 2rem;
}

.hero__title {
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: bold;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.hero__description {
    font-size: clamp(1rem, 2vw, 1.25rem);
    max-width: 600px;
    margin: 0 auto 2rem;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.5);
}

.hero__download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    border: none;
    border-radius: 9999px;
    font-size: 1.125rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.hero__download-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.hero__platforms {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
}

.hero__platform {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
}

.hero__platform-icon {
    font-size: 1.5rem;
}

/* 公告区域 */
.announcement {
    background-color: rgba(245, 158, 11, 0.1);
    padding: 3rem 0;
}

.announcement__container {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border: 2px solid rgba(245, 158, 11, 0.3);
}

.announcement__header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.announcement__icon {
    width: 2.5rem;
    height: 2.5rem;
    background-color: rgba(245, 158, 11, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--color-accent);
}

.announcement__title {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--color-dark);
}

.announcement__date {
    background-color: var(--color-accent);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
}

.announcement__content {
    margin-bottom: 2rem;
}

.announcement__subtitle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.125rem;
    font-weight: bold;
    color: var(--color-dark);
    margin-bottom: 1rem;
}

.announcement__subtitle-icon {
    color: var(--color-primary);
}

.announcement__info {
    background-color: rgba(245, 158, 11, 0.05);
    border-radius: 0.75rem;
    padding: 1.25rem;
    border: 1px solid rgba(245, 158, 11, 0.2);
    margin-bottom: 1.5rem;
}

.announcement__info-text {
    color: var(--color-gray);
    margin-bottom: 1rem;
}

.announcement__info-text--bold {
    font-weight: 500;
}

.announcement__tiers {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.announcement__tier {
    background-color: var(--color-light);
    border-radius: 0.75rem;
    padding: 1.25rem;
    border: 2px solid rgba(59, 130, 246, 0.3);
    transition: var(--transition);
}

.announcement__tier:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.announcement__tier-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.announcement__tier-badge {
    background-color: var(--color-primary);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
}

.announcement__tier-title {
    font-size: 1.125rem;
    font-weight: bold;
    color: var(--color-dark);
}

.announcement__tier-list {
    list-style: none;
}

.announcement__tier-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: var(--color-gray);
    font-size: 0.875rem;
}

.announcement__tier-item-icon {
    color: var(--color-primary);
    font-size: 0.75rem;
}

.announcement__note {
    background-color: rgba(239, 68, 68, 0.05);
    border-radius: 0.75rem;
    padding: 1.25rem;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.announcement__note-header {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.announcement__note-icon {
    color: #EF4444;
    font-size: 1.25rem;
    margin-top: 0.25rem;
}

.announcement__note-title {
    font-weight: bold;
    color: #EF4444;
    margin-bottom: 0.5rem;
}

.announcement__note-list {
    list-style: none;
}

.announcement__note-item {
    color: #DC2626;
    margin-bottom: 0.5rem;
}

/* 游戏特色 */
.features {
    padding: 4rem 0;
    background-color: white;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header__title {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: bold;
    color: var(--color-dark);
    margin-bottom: 1rem;
}

.section-header__divider {
    width: 4rem;
    height: 0.25rem;
    background-color: var(--color-primary);
    margin: 0 auto 1.5rem;
    border-radius: 9999px;
}

.section-header__subtitle {
    max-width: 500px;
    margin: 0 auto;
    color: var(--color-gray);
    font-size: 1.125rem;
}

.features__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.features__item {
    background-color: var(--color-light);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    border: 1px solid var(--color-gray-light);
    transition: var(--transition);
}

.features__item:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.features__item-icon {
    width: 4rem;
    height: 4rem;
    background-color: rgba(59, 130, 246, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.5rem;
    color: var(--color-primary);
    transition: var(--transition);
}

.features__item:hover .features__item-icon {
    background-color: rgba(59, 130, 246, 0.2);
    transform: scale(1.1);
}

.features__item-title {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--color-dark);
    margin-bottom: 1rem;
}

.features__item-description {
    color: var(--color-gray);
    line-height: 1.6;
}

/* 游戏截图 */
.screenshots {
    padding: 4rem 0;
    background-color: var(--color-light);
}

.screenshots__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.screenshots__item {
    position: relative;
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.screenshots__item:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.screenshots__item-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: var(--transition);
}

.screenshots__item:hover .screenshots__item-image {
    transform: scale(1.1);
}

.screenshots__item-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, transparent 100%);
    display: flex;
    align-items: flex-end;
    padding: 1.5rem;
    opacity: 0;
    transition: var(--transition);
}

.screenshots__item:hover .screenshots__item-overlay {
    opacity: 1;
}

.screenshots__item-caption {
    color: white;
    font-size: 0.875rem;
}

.screenshots__more-btn {
    display: block;
    margin: 0 auto;
    padding: 0.75rem 2rem;
    background-color: white;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
    border-radius: 9999px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.screenshots__more-btn:hover {
    background-color: var(--color-primary);
    color: white;
    transform: scale(1.05);
}

/* 兑换码 */
.codes {
    padding: 4rem 0;
    background-color: white;
}

.codes__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.codes__item {
    background-color: var(--color-light);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    border-left: 4px solid var(--color-primary);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.codes__item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.codes__item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.codes__item-title {
    font-size: 1.125rem;
    font-weight: bold;
    color: var(--color-dark);
}

.codes__item-badge {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--color-primary);
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
}

.codes__item-code {
    background-color: white;
    border-radius: 0.5rem;
    padding: 1rem;
    font-family: 'Courier New', monospace;
    text-align: center;
    margin-bottom: 1rem;
    border: 1px solid var(--color-gray-light);
    transition: var(--transition);
}

.codes__item:hover .codes__item-code {
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.codes__item-reward {
    color: var(--color-gray);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.codes__item-copy-btn {
    width: 100%;
    padding: 0.5rem;
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--color-primary);
    border: none;
    border-radius: 0.5rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.codes__item-copy-btn:hover {
    background-color: rgba(59, 130, 246, 0.2);
    transform: translateY(-2px);
}

.codes__more-info {
    background-color: rgba(59, 130, 246, 0.05);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
}

.codes__more-info-text {
    color: var(--color-gray);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.codes__more-info-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.75rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    border: none;
    border-radius: 9999px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
}

.codes__more-info-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.15);
}

/* 下载区域 */
.download {
    padding: 4rem 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05) 0%, white 100%);
    position: relative;
    overflow: hidden;
}

.download__container {
    position: relative;
    z-index: 1;
}

.download__main-btn {
    display: block;
    margin: 0 auto 3rem;
    padding: 1.25rem 3rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    border: none;
    border-radius: 9999px;
    font-size: 1.25rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    max-width: 300px;
}

.download__main-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.download__platforms {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.download__platform {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    border: 1px solid var(--color-gray-light);
    transition: var(--transition);
}

.download__platform:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.download__platform-icon {
    font-size: 4rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
    transition: var(--transition);
}

.download__platform:hover .download__platform-icon {
    transform: scale(1.1);
    color: var(--color-primary-light);
}

.download__platform-title {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--color-dark);
    margin-bottom: 0.5rem;
}

.download__platform-description {
    color: var(--color-gray);
    margin-bottom: 1.5rem;
    max-width: 250px;
    margin-left: auto;
    margin-right: auto;
}

.download__platform-btn {
    padding: 0.75rem 1.5rem;
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--color-primary);
    border: none;
    border-radius: 9999px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
}

.download__platform:hover .download__platform-btn {
    background-color: rgba(59, 130, 246, 0.2);
    transform: translateY(-2px);
}

/* 联系我们 */
.contact {
    padding: 4rem 0;
    background-color: white;
}

.contact__content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

@media (min-width: 768px) {
    .contact__content {
        grid-template-columns: 1fr 1fr;
    }
}

.contact__info {
    background-color: var(--color-light);
    border-radius: var(--border-radius);
    padding: 2rem;
    border: 1px solid var(--color-gray-light);
    transition: var(--transition);
}

.contact__info:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.contact__info-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact__info-icon {
    font-size: 2rem;
    color: var(--color-primary);
}

.contact__info-title {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--color-dark);
}

.contact__info-details {
    margin-bottom: 1.5rem;
}

.contact__info-detail {
    background-color: white;
    border-radius: 0.5rem;
    padding: 1rem;
    margin-bottom: 1rem;
    border: 1px solid var(--color-gray-light);
}

.contact__info-detail-label {
    font-size: 0.875rem;
    color: var(--color-gray);
    margin-bottom: 0.25rem;
}

.contact__info-detail-value {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-dark);
    font-family: 'Courier New', monospace;
}

.contact__info-description {
    color: var(--color-gray);
    margin-bottom: 1.5rem;
}

.contact__info-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background-color: #12B7F5;
    color: white;
    border: none;
    border-radius: 9999px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
}

.contact__info-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.contact__more {
    background-color: var(--color-light);
    border-radius: var(--border-radius);
    padding: 2rem;
    border: 1px solid var(--color-gray-light);
    transition: var(--transition);
}

.contact__more:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.contact__more-title {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--color-dark);
    margin-bottom: 1.5rem;
}

.contact__more-description {
    color: var(--color-gray);
    margin-bottom: 1.5rem;
}

.contact__more-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background-color: var(--color-dark);
    color: white;
    border: none;
    border-radius: 9999px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
}

.contact__more-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

/* 响应式设计 */
@media (min-width: 768px) {
    .nav {
        display: block;
    }
    
    .download-btn {
        display: flex;
    }
    
    .menu-toggle {
        display: none;
    }
    
    .mobile-menu {
        display: none;
    }
    
    .screenshots__item-image {
        height: 250px;
    }
}

/* 大屏幕导航菜单 */
@media (min-width: 1024px) {
    /* 隐藏手风琴菜单 */
    .accordion-menu {
        display: none;
    }
    
    /* 显示桌面端菜单 */
    .desktop-menu {
        display: block;
    }
    
    /* 隐藏底部悬浮菜单 */
    .bottom-nav {
        display: none;
    }
    
    /* 恢复大屏幕上的布局 */
    .header__container {
        justify-content: space-between;
    }
    
    /* 调整桌面端菜单项间距 */
    .desktop-menu__list {
        gap: 1.5rem;
    }
    
    /* 调整桌面端菜单项样式 */
    .desktop-menu__link {
        padding: 0.75rem 1.25rem;
        font-size: 1.05rem;
    }
    
    /* 调整桌面端子菜单样式 */
    .desktop-menu__submenu {
        width: 220px;
    }
    
    .desktop-menu__submenu-link {
        padding: 0.875rem 1.25rem;
        font-size: 1rem;
        transition: var(--transition);
    }
    
    .desktop-menu__submenu-link:hover {
        padding-left: 1.5rem;
    }
}

@media (min-width: 1024px) {
    .features__grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .screenshots__grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .codes__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* 动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

.slide-in {
    animation: slideIn 0.6s ease-out;
}

/* 页脚 */
.footer {
    background-color: var(--color-dark);
    color: white;
    padding: 4rem 0 2rem;
}

.footer__container {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.footer__top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer__logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
}

.footer__logo-image {
    width: 3rem;
    height: 3rem;
    border-radius: 0.5rem;
}

.footer__logo-text {
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
}

.footer__logo-subtitle {
    color: var(--color-gray);
    font-size: 0.875rem;
}

.footer__social {
    display: flex;
    gap: 1rem;
}

.footer__social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    transition: var(--transition);
}

.footer__social-link:hover {
    background-color: var(--color-primary);
    transform: translateY(-2px);
}

.footer__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
}

.footer__column {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer__column-title {
    font-size: 1.125rem;
    font-weight: bold;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}

.footer__column-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer__column-link {
    color: var(--color-gray);
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer__column-link:hover {
    color: white;
    transform: translateX(5px);
}

.footer__column-link::before {
    content: '→';
    font-size: 0.75rem;
    opacity: 0;
    transition: var(--transition);
}

.footer__column-link:hover::before {
    opacity: 1;
}

.footer__column-text {
    color: var(--color-gray);
    font-size: 0.875rem;
}

.footer__column-text--small {
    color: var(--color-gray);
    font-size: 0.75rem;
    margin-top: 0.5rem;
}

.footer__qrcode {
    background-color: white;
    padding: 0.5rem;
    border-radius: 0.5rem;
    display: inline-block;
}

.footer__qrcode-image {
    width: 6rem;
    height: 6rem;
    object-fit: cover;
}

.footer__column-list-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    color: var(--color-gray);
    font-size: 0.875rem;
}

.footer__column-list-item i {
    color: var(--color-primary);
    margin-top: 0.25rem;
}

.footer__column-list-item-title {
    font-weight: 500;
    color: white;
    margin-bottom: 0.25rem;
}

.footer__column-list-item-text {
    color: var(--color-gray);
    font-size: 0.75rem;
}

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
}

.footer__copyright {
    color: var(--color-gray);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.footer__disclaimer {
    color: var(--color-gray);
    font-size: 0.75rem;
}

/* 通用页面标题样式 */
.section-padding {
    padding: 4rem 0;
}

.section-title {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: bold;
    color: var(--color-dark);
    text-align: center;
    margin-bottom: 1rem;
}

.section-subtitle {
    max-width: 500px;
    margin: 0 auto;
    color: var(--color-gray);
    font-size: 1.125rem;
    text-align: center;
    margin-bottom: 2rem;
}

.divider {
    width: 4rem;
    height: 0.25rem;
    background-color: var(--color-primary);
    margin: 0 auto 1.5rem;
    border-radius: 9999px;
}

/* 通用居中样式 */
h2 {
    text-align: center;
}

p {
    text-align: center;
}

/* 滚动效果 */
.header--scrolled {
    padding: 0.5rem 0;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    background-color: rgba(255, 255, 255, 0.98);
}