/* Tailwind基础样式 */
*,
::before,
::after {
    box-sizing: border-box;
    border-width: 0;
    border-style: solid;
    border-color: #e5e7eb
}

::before,
::after {
    --tw-content: ''
}

html {
    line-height: 1.5;
    -webkit-text-size-adjust: 100%;
    -moz-tab-size: 4;
    tab-size: 4;
    font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
    font-feature-settings: normal
}

body {
    margin: 0;
    line-height: inherit;
    background-color: #ffffff;
}

/* 深色主题背景 */
html[data-theme='dark'] body {
    background-color: #18181b;
}

:root {
    --accent-color: #1a73e8;
}

html[data-theme='dark'] {
    --accent-color: #3b82f6;
}

html {
    scrollbar-width: none;
}

body::-webkit-scrollbar {
    display: none;
}

:focus:not(:focus-visible) {
    outline: none;
    box-shadow: none;
}

:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
    border-radius: 8px;
}

@keyframes blob-move-1 {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    50% {
        transform: translate(100px, -50px) scale(1.1);
    }
}

@keyframes blob-move-2 {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    50% {
        transform: translate(-80px, 60px) scale(0.9);
    }
}

@keyframes blob-move-3 {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    50% {
        transform: translate(50px, 100px) scale(1.05);
    }
}

@keyframes content-fade-in-up {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.98);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes ripple-effect {
    to {
        transform: translate(-50%, -50%) scale(15);
        opacity: 0;
    }
}

.ripple {
    position: fixed;
    border-radius: 50%;
    background-color: var(--accent-color);
    opacity: 0.2;
    transform: translate(-50%, -50%) scale(0);
    animation: ripple-effect 0.8s ease-out;
    pointer-events: none;
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.accordion-item.active .chevron {
    transform: rotate(180deg);
}

.animated-blob-1 {
    animation: blob-move-1 20s ease-in-out infinite;
}

.animated-blob-2 {
    animation: blob-move-2 25s ease-in-out infinite;
}

.animated-blob-3 {
    animation: blob-move-3 18s ease-in-out infinite;
}

.content-entry {
    opacity: 0;
    animation: content-fade-in-up 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

/* 自定义语言选择器 - Google风格 */
.lang-selector {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 50;
}

.lang-dropdown {
    position: relative;
    display: inline-block;
}

.lang-button {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 24px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: #5f6368;
    transition: all 0.2s;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

html[data-theme='dark'] .lang-button {
    background: rgba(39, 39, 42, 0.9);
    border-color: rgba(255, 255, 255, 0.1);
    color: #e8eaed;
}

.lang-button:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    background: rgba(255, 255, 255, 1);
}

html[data-theme='dark'] .lang-button:hover {
    background: rgba(39, 39, 42, 1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

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

.lang-arrow {
    width: 16px;
    height: 16px;
    transition: transform 0.2s;
}

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

.lang-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 200px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

html[data-theme='dark'] .lang-menu {
    background: rgb(39, 39, 42);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

.lang-dropdown.open .lang-menu {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    cursor: pointer;
    color: #202124;
    font-size: 14px;
    transition: background-color 0.2s;
}

html[data-theme='dark'] .lang-option {
    color: #e8eaed;
}

.lang-option:hover {
    background-color: #f1f3f4;
}

html[data-theme='dark'] .lang-option:hover {
    background-color: rgba(255, 255, 255, 0.08);
}

.lang-option.active {
    background-color: #e8f0fe;
    color: #1a73e8;
    font-weight: 500;
}

html[data-theme='dark'] .lang-option.active {
    background-color: rgba(138, 180, 248, 0.16);
    color: #8ab4f8;
}

.lang-option-flag {
    width: 20px;
    height: 20px;
    font-size: 20px;
}

.lang-option-text {
    flex: 1;
}

.lang-option-check {
    width: 16px;
    height: 16px;
    opacity: 0;
}

.lang-option.active .lang-option-check {
    opacity: 1;
}

/* Tailwind实用类 - 页面布局必需 */
.container {
    max-width: 1200px;
    margin: 0 auto;
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

.max-w-4xl {
    max-width: 56rem;
}

.px-4 {
    padding-left: 1rem;
    padding-right: 1rem;
}

.py-12 {
    padding-top: 3rem;
    padding-bottom: 3rem;
}

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

.mb-12 {
    margin-bottom: 3rem;
}

.relative {
    position: relative;
}

.absolute {
    position: absolute;
}

.inset-0 {
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
}

.-z-10 {
    z-index: -10;
}

.overflow-hidden {
    overflow: hidden;
}

.flex {
    display: flex;
}

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

.items-center {
    align-items: center;
}

.gap-4 {
    gap: 1rem;
}

.space-y-12>*+* {
    margin-top: 3rem;
}

/* 响应式设计 */
@media (min-width: 640px) {
    .md\:py-20 {
        padding-top: 5rem;
        padding-bottom: 5rem;
    }

    .md\:mb-20 {
        margin-bottom: 5rem;
    }

    .md\:space-y-16>*+* {
        margin-top: 4rem;
    }

    .md\:text-5xl {
        font-size: 3rem;
    }

    .md\:text-xl {
        font-size: 1.25rem;
    }
}

/* 文本样式 */
.text-4xl {
    font-size: 2.25rem;
}

.text-lg {
    font-size: 1.125rem;
}

.font-bold {
    font-weight: 700;
}

.text-zinc-800 {
    color: #27272a;
}

.text-zinc-600 {
    color: #52525b;
}

.text-zinc-900 {
    color: #18181b;
}

/* 背景和边框 */
.bg-blue-100 {
    background-color: #dbeafe;
}

.text-blue-600 {
    color: #2563eb;
}

.rounded-full {
    border-radius: 9999px;
}

.px-4 {
    padding-left: 1rem;
    padding-right: 1rem;
}

.py-1 {
    padding-top: 0.25rem;
    padding-bottom: 0.25rem;
}

.text-sm {
    font-size: 0.875rem;
}

.font-semibold {
    font-weight: 600;
}

.mt-3 {
    margin-top: 0.75rem;
}

.text-2xl {
    font-size: 1.5rem;
}

/* 尺寸 */
.h-12 {
    height: 3rem;
}

.w-12 {
    width: 3rem;
}

.mb-5 {
    margin-bottom: 1.25rem;
}

.mb-8 {
    margin-bottom: 2rem;
}

/* 动画 */
.content-entry {
    opacity: 0;
    animation: content-fade-in-up 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

/* 背景和主题 */
.bg-zinc-50 {
    background-color: #fafafa;
}

.dark\:bg-zinc-900 {
    background-color: #18181b;
}

.font-sans {
    font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
}

.antialiased {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.overflow-x-hidden {
    overflow-x: hidden;
}

/* 深色主题文本 */
.dark\:text-white {
    color: #ffffff;
}

.dark\:text-zinc-400 {
    color: #a1a1aa;
}

/* 更多布局类 */
.inline-block {
    display: inline-block;
}

.block {
    display: block;
}

.hidden {
    display: none;
}

.opacity-0 {
    opacity: 0;
}

.scale-95 {
    transform: scale(0.95);
}

/* 手风琴样式 */
.accordion-item {
    border: 1px solid #e4e4e7;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.accordion-trigger {
    width: 100%;
    padding: 1rem;
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.accordion-content.active {
    max-height: none;
}

/* 卡片样式 */
.card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    margin-bottom: 1rem;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s;
}

.btn-primary {
    background-color: #2563eb;
    color: white;
}

.btn-primary:hover {
    background-color: #1d4ed8;
}

/* 图标尺寸 */
.w-5 {
    width: 1.25rem;
}

.h-5 {
    height: 1.25rem;
}

.w-6 {
    width: 1.5rem;
}

.h-6 {
    height: 1.5rem;
}

/* 更多图标尺寸 */
.w-10 {
    width: 2.5rem;
}

.h-10 {
    height: 2.5rem;
}

.w-16 {
    width: 4rem;
}

.h-16 {
    height: 4rem;
}

/* 模态框样式 */
.fixed {
    position: fixed;
}

.z-50 {
    z-index: 50;
}

.bg-black\/30 {
    background-color: rgba(0, 0, 0, 0.3);
}

.backdrop-blur-sm {
    backdrop-filter: blur(4px);
}

.pointer-events-none {
    pointer-events: none;
}

.transition-opacity {
    transition-property: opacity;
}

.duration-300 {
    transition-duration: 300ms;
}

.rounded-2xl {
    border-radius: 1rem;
}

.shadow-xl {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.p-8 {
    padding: 2rem;
}

.max-w-sm {
    max-width: 24rem;
}

.transform {
    transform: translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

.transition-all {
    transition-property: all;
}

.bg-green-100 {
    background-color: #dcfce7;
}

.dark\:bg-green-900\/50 {
    background-color: rgba(20, 83, 45, 0.5);
}

.text-green-500 {
    color: #22c55e;
}

/* 原生应用下载样式 - 一行四栏布局 */
.download-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-top: 2rem;
}

.download-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: all 0.2s;
    text-align: center;
}

.download-item:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

.download-item-icon {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f3f4f6;
    border-radius: 8px;
}

.download-item-content {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    align-items: center;
}

.download-item-title {
    font-size: 1rem;
    font-weight: 600;
    color: #374151;
}

.download-item-action {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: #2563eb;
    color: white;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.2s;
    font-size: 0.875rem;
}

.download-item-action:hover {
    background: #1d4ed8;
    color: white;
}

.download-item-coming-soon {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: #6b7280;
    color: white;
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.875rem;
}

/* 响应式设计 - 移动端改为单列 */
@media (max-width: 768px) {
    .download-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .download-item {
        flex-direction: row;
        text-align: left;
    }

    .download-item-content {
        align-items: flex-start;
        flex: 1;
    }
}

/* 深色主题适配 */
html[data-theme='dark'] .download-item {
    background: #374151;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

html[data-theme='dark'] .download-item:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

html[data-theme='dark'] .download-item-icon {
    background: #4b5563;
}

html[data-theme='dark'] .download-item-title {
    color: #f3f4f6;
}

/* 下载按钮样式 */
.bg-green-500 {
    background-color: #22c55e;
}

.bg-green-600 {
    background-color: #16a34a;
}

.bg-sky-500 {
    background-color: #0ea5e9;
}

.bg-zinc-200 {
    background-color: #e4e4e7;
}

.bg-zinc-500 {
    background-color: #71717a;
}

.bg-zinc-700 {
    background-color: #3f3f46;
}

.text-white {
    color: #ffffff;
}

.text-zinc-500 {
    color: #71717a;
}

.text-zinc-400 {
    color: #a1a1aa;
}

.font-semibold {
    font-weight: 600;
}

.py-2 {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.px-4 {
    padding-left: 1rem;
    padding-right: 1rem;
}

.rounded-lg {
    border-radius: 0.5rem;
}

.hover\:bg-green-600:hover {
    background-color: #16a34a;
}

.hover\:bg-green-600:hover {
    color: #ffffff;
}

.transition-colors {
    transition-property: color, background-color, border-color, text-decoration-color, fill, stroke;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 150ms;
}

.cursor-not-allowed {
    cursor: not-allowed;
}

.mt-auto {
    margin-top: auto;
}

.w-full {
    width: 100%;
}

.mb-2 {
    margin-bottom: 0.5rem;
}

.mb-4 {
    margin-bottom: 1rem;
}

.h-12 {
    height: 3rem;
}

.w-12 {
    width: 3rem;
}

/* 卡片样式 */
.bg-white\/60 {
    background-color: rgba(255, 255, 255, 0.6);
}

.dark\:bg-zinc-800\/60 {
    background-color: rgba(39, 39, 42, 0.6);
}

.backdrop-blur-md {
    backdrop-filter: blur(12px);
}

.p-6 {
    padding: 1.5rem;
}

.rounded-xl {
    border-radius: 0.75rem;
}

.shadow-sm {
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.hover\:shadow-lg:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.border {
    border-width: 1px;
}

.border-zinc-200 {
    border-color: #e4e4e7;
}

.dark\:border-zinc-700 {
    border-color: #3f3f46;
}

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.transform {
    transform: translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

.transition-transform {
    transition-property: transform;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 150ms;
}

.duration-300 {
    transition-duration: 300ms;
}

.hover\:scale-105:hover {
    transform: scale(1.05);
}

.opacity-60 {
    opacity: 0.6;
}

.text-lg {
    font-size: 1.125rem;
}

.text-zinc-900 {
    color: #18181b;
}

.dark\:text-white {
    color: #ffffff;
}