/* =========
     主题变量
   ========= */

:root {
    /* 主题色（来源：Resource/Color.png） */
    --app-color-lilac-50: #F9F6FF;
    --app-color-peach: #FFB7A5;
    --app-color-muted: #786987;
    --app-color-primary: #763DE8;
    --app-color-primary-hover: #6A30DC;
    --app-color-deep: #29075C;
    --app-color-ink: #281343;
    --app-color-lilac-100: #EEE5FF;
    --app-color-border: #E7DFF0;
    --app-color-mist: #E9EEF4;
    --app-color-cream: #FFE8D9;
    --app-color-white: #FFFFFF;

    /* 品牌渐变：紫 → 粉 → 桃 */
    --app-gradient-brand: linear-gradient(90deg, #763DE8 0%, #B57CDF 52%, #FFB7A5 100%);

    /* 字体 */
    --app-font-family: 'Outfit', system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;

    /* 布局 */
    --app-wrap-width: 1240px;
    --app-wrap-gutter: 24px;
    --app-header-height: 114px;

    /* 阴影 */
    --app-shadow-primary: 0 10px 24px rgba(118, 61, 232, 0.28);
    --app-shadow-soft: 0 8px 24px rgba(41, 7, 92, 0.08);

    /* 覆盖 Bootstrap 默认字体与颜色 */
    --bs-body-font-family: var(--app-font-family);
    --bs-body-color: var(--app-color-ink);
    --bs-body-bg: var(--app-color-white);
}

@media (max-width: 1199.98px) {
    :root {
        --app-header-height: 76px;
    }
}

@media (max-width: 575.98px) {
    :root {
        --app-wrap-gutter: 20px;
        --app-header-height: 68px;
    }
}

/* =========
     主题变量
   ========= */


/* =========
     基础元素
   ========= */

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--app-header-height);
}

html, body {
    font-family: var(--app-font-family);
    color: var(--app-color-ink);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    background: var(--app-color-white);
    overflow-x: hidden;
}

img {
    max-width: 100%;
}

a, button {
    -webkit-tap-highlight-color: transparent;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--app-color-primary);
    outline-offset: 3px;
}

h1:focus {
    outline: none;
}

/* =========
     基础元素
   ========= */


/* =========
     通用工具类
   ========= */

/* 页面内容容器：最大宽度 1240px，左右留白 */
.app-wrap {
    width: 100%;
    max-width: calc(var(--app-wrap-width) + var(--app-wrap-gutter) * 2);
    margin: 0 auto;
    padding-left: var(--app-wrap-gutter);
    padding-right: var(--app-wrap-gutter);
}

/* 品牌渐变文字 */
.app-gradient-text {
    background: var(--app-gradient-brand);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

/* 区块小标题（眉标） */
.app-eyebrow {
    display: inline-block;
    margin: 0;
    font-size: 12px;
    font-weight: 600;
    line-height: 1.4;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    background: var(--app-gradient-brand);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

/* =========
     通用工具类
   ========= */


/* =========
     通用按钮
   ========= */

/* 按钮基础：内容水平垂直居中 */
.app-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    height: 54px;
    padding: 0 24px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-family: var(--app-font-family);
    font-size: 16px;
    font-weight: 600;
    line-height: 1;
    white-space: nowrap;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}

.app-btn:hover {
    transform: translateY(-2px);
}

.app-btn:active {
    transform: translateY(0);
}

/* 按钮内的右上箭头图标（向上箭头旋转 45 度） */
.app-btn-arrow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    line-height: 1;
    transform: rotate(45deg);
    transition: transform 0.25s ease;
}

.app-btn:hover .app-btn-arrow {
    transform: translate(2px, -2px) rotate(45deg);
}

/* 主按钮：紫色实心 */
.app-btn-primary {
    background: var(--app-color-primary);
    color: var(--app-color-white);
    box-shadow: var(--app-shadow-primary);
}

.app-btn-primary:hover,
.app-btn-primary:focus-visible {
    background: var(--app-color-primary-hover);
    color: var(--app-color-white);
    box-shadow: 0 14px 30px rgba(118, 61, 232, 0.36);
}

/* 白底按钮 */
.app-btn-light {
    background: var(--app-color-white);
    color: var(--app-color-ink);
    box-shadow: var(--app-shadow-soft);
}

.app-btn-light:hover,
.app-btn-light:focus-visible {
    color: var(--app-color-primary);
    box-shadow: 0 12px 28px rgba(41, 7, 92, 0.12);
}

/* 描边按钮 */
.app-btn-outline {
    background: var(--app-color-white);
    color: var(--app-color-ink);
    border-color: var(--app-color-border);
}

.app-btn-outline:hover,
.app-btn-outline:focus-visible {
    color: var(--app-color-primary);
    border-color: var(--app-color-primary);
    box-shadow: 0 10px 24px rgba(118, 61, 232, 0.12);
}

/* =========
     通用按钮
   ========= */


/* =========
     滚动淡入动画
   ========= */

/* 仅在 JS 可用时隐藏，保证无 JS 时内容正常显示 */
.app-js .app-reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.2, 0.7, 0.2, 1);
    will-change: opacity, transform;
}

.app-js .app-reveal.app-revealed {
    opacity: 1;
    transform: none;
}

.app-js .app-reveal-delay-1 {
    transition-delay: 0.1s;
}

.app-js .app-reveal-delay-2 {
    transition-delay: 0.2s;
}

.app-js .app-reveal-delay-3 {
    transition-delay: 0.3s;
}

/* 系统开启"减少动态效果"时关闭动画 */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .app-js .app-reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .app-btn,
    .app-btn-arrow {
        transition: none;
    }
}

/* =========
     滚动淡入动画
   ========= */


/* =========
     Blazor 错误提示
   ========= */

#blazor-error-ui {
    background: lightyellow;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    right: 0.75rem;
    top: 0.5rem;
}

.blazor-error-boundary {
    background: #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

.blazor-error-boundary::after {
    content: "An error has occurred.";
}

/* =========
     Blazor 错误提示
   ========= */