html {
    background: #f6f7f9;
    color-scheme: light;
}

html.dark {
    background: #090d14;
    color-scheme: dark;
}

/* 页面动效保持短促，只使用 opacity 与 transform */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

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

.fade-in {
    animation: fadeIn 0.45s var(--motion-easing) both;
}

@keyframes filterIn {
    from {
        opacity: 0;
        transform: translateY(4px);
    }

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

.filter-in {
    animation: filterIn 0.18s var(--motion-easing) both;
}

/* 焦点高亮 */
.service-card:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px rgb(2 132 199 / 0.75), 0 10px 28px -18px rgb(2 132 199 / 0.65);
    transform: translateY(-2px);
}

/* 使用自定义清空按钮，隐藏浏览器原生 search cancel button */
#service-search::-webkit-search-cancel-button {
    display: none;
    -webkit-appearance: none;
    appearance: none;
}

:root {
    --site-header-height: 3.75rem;
    --site-header-offset: calc(var(--site-header-height) + env(safe-area-inset-top));
    --content-top-gap: 1rem;
    --content-max-width: 96rem;
    --page-bg: #f6f7f9;
    --page-bg-dark: #090d14;
    --sticky-surface-bg: rgb(246 247 249 / 0.78);
    --sticky-surface-bg-dark: rgb(9 13 20 / 0.78);
    --glass-filter: blur(14px) saturate(125%);
    --motion-easing: cubic-bezier(0.22, 1, 0.36, 1);
    --header-control-height: 2.5rem;
    --header-control-radius: 0.75rem;
    --header-control-border: rgb(148 163 184 / 0.2);
    --header-control-bg: rgb(255 255 255 / 0.72);
    --header-control-shadow: 0 4px 16px -12px rgb(15 23 42 / 0.3), inset 0 1px 0 rgb(255 255 255 / 0.72);
    --header-control-border-dark: rgb(255 255 255 / 0.1);
    --header-control-bg-dark: rgb(255 255 255 / 0.055);
    --header-control-shadow-dark: 0 6px 18px -14px rgb(0 0 0 / 0.75), inset 0 1px 0 rgb(255 255 255 / 0.045);
}

html {
    scroll-padding-top: calc(var(--site-header-offset) + var(--content-top-gap));
}

body {
    background: var(--page-bg);
}

.dark body {
    background: var(--page-bg-dark);
}

/* 固定单行 Header：品牌、搜索与模式切换保持稳定，不参与滚动动画 */
.site-header {
    position: fixed;
    inset: 0 0 auto;
    z-index: 30;
    height: var(--site-header-offset);
    padding-top: env(safe-area-inset-top);
    border-bottom: 1px solid rgb(148 163 184 / 0.2);
    background: var(--sticky-surface-bg);
    -webkit-backdrop-filter: var(--glass-filter);
    backdrop-filter: var(--glass-filter);
}

.dark .site-header {
    border-bottom-color: rgb(255 255 255 / 0.08);
    background: var(--sticky-surface-bg-dark);
}

.site-header__inner {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 0.5rem;
    box-sizing: border-box;
    height: var(--site-header-height);
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 0 1rem;
}

.site-header__brand {
    display: flex;
    grid-column: 1;
    align-items: center;
    gap: 0.5rem;
    justify-self: start;
    height: var(--header-control-height);
    max-width: 100%;
    min-width: 0;
    padding: 0;
    overflow: hidden;
}

.site-header__logo {
    width: var(--header-control-height);
    height: var(--header-control-height);
    color: rgb(15 23 42);
    font-size: 0.625rem;
    font-weight: 750;
    line-height: 1;
    letter-spacing: 0.08em;
    text-indent: 0.08em;
    user-select: none;
}

.dark .site-header__logo {
    color: rgb(241 245 249);
}

.site-header__brand-copy {
    display: none;
    min-width: 0;
}

.site-header__title {
    font-size: 0.875rem;
    line-height: 1.125rem;
    white-space: nowrap;
}

.site-header__subtitle {
    margin-top: 0.125rem;
    font-size: 0.6875rem;
    line-height: 0.875rem;
    white-space: nowrap;
}

.site-header__logo,
.search-control,
.site-header__mode {
    border: 1px solid var(--header-control-border);
    border-radius: var(--header-control-radius);
    background: var(--header-control-bg);
    box-shadow: var(--header-control-shadow);
    -webkit-backdrop-filter: var(--glass-filter);
    backdrop-filter: var(--glass-filter);
}

.dark .site-header__logo,
.dark .search-control,
.dark .site-header__mode {
    border-color: var(--header-control-border-dark);
    background: var(--header-control-bg-dark);
    box-shadow: var(--header-control-shadow-dark);
}

.site-header__mode {
    grid-column: 3;
    justify-self: end;
    width: var(--header-control-height);
    height: var(--header-control-height);
    padding: 0;
}

.site-header__search {
    grid-column: 2;
    justify-self: center;
    width: 100%;
    height: var(--header-control-height);
    max-width: 36rem;
}

.search-control {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    transition: border-color 160ms ease, box-shadow 160ms ease, background-color 160ms ease;
}

.search-control:hover {
    border-color: rgb(148 163 184 / 0.42);
    background: rgb(255 255 255 / 0.82);
}

.search-control:focus-within {
    border-color: rgb(2 132 199 / 0.48);
    background: rgb(255 255 255 / 0.88);
    box-shadow: 0 0 0 3px rgb(14 165 233 / 0.11), var(--header-control-shadow);
}

.dark .search-control:hover {
    border-color: rgb(255 255 255 / 0.2);
    background: rgb(255 255 255 / 0.075);
}

.dark .search-control:focus-within {
    border-color: rgb(56 189 248 / 0.5);
    background: rgb(255 255 255 / 0.085);
    box-shadow: 0 0 0 3px rgb(56 189 248 / 0.11), var(--header-control-shadow-dark);
}

.search-control input {
    height: 100%;
    background: transparent;
}

.header-spacer {
    height: var(--site-header-offset);
}

.section-filter,
.service-section {
    scroll-margin-top: calc(var(--site-header-offset) + var(--content-top-gap));
}

.section-filter {
    top: var(--site-header-offset);
    border-bottom: 1px solid rgb(203 213 225 / 0.55);
    background-color: var(--sticky-surface-bg);
    box-shadow: 0 8px 20px -22px rgb(15 23 42 / 0.65);
    -webkit-backdrop-filter: blur(10px) saturate(115%);
    backdrop-filter: blur(10px) saturate(115%);
}

.dark .section-filter {
    border-bottom-color: rgb(255 255 255 / 0.08);
    background-color: var(--sticky-surface-bg-dark);
    box-shadow: 0 10px 18px -20px rgb(0 0 0 / 0.9);
}

.page-main {
    min-height: calc(100vh - var(--site-header-offset));
    min-height: calc(100dvh - var(--site-header-offset));
}

.page-footer {
    padding-top: 5rem;
    padding-bottom: 5rem;
}

@media (max-width: 767px) {
    /* iOS Safari 会在聚焦小于 16px 的输入框时自动缩放页面。 */
    #service-search {
        font-size: 1rem;
    }

    .mode-label-short,
    .mode-label-long {
        display: none;
    }
}

@media (min-width: 768px) {
    .site-header__inner {
        grid-template-columns: minmax(11.5rem, 1fr) minmax(16rem, 36rem) minmax(11.5rem, 1fr);
        gap: 1.5rem;
        padding-right: 1.5rem;
        padding-left: 1.5rem;
    }

    .site-header__brand-copy {
        display: block;
    }

    .site-header__mode {
        width: auto;
        padding-right: 0.75rem;
        padding-left: 0.75rem;
    }
}

@media (min-width: 1024px) {
    .site-header__inner {
        padding-right: 2rem;
        padding-left: 2rem;
    }
}

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .service-card:hover,
    .service-card:focus-visible {
        transform: none;
    }

    .search-control {
        transition-duration: 0.01ms !important;
    }
}

/* 挂载前隐藏未编译模板，避免 {{ }} 闪烁 */
[v-cloak] {
    display: none;
}