/**
 * Homepage — 百鸣软件首页
 */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body.is-home {
    font-family: var(--bm-font-sans);
    font-size: var(--bm-text-base);
    line-height: var(--bm-leading-normal);
    color: var(--bm-text);
    background-color: transparent;
    padding-top: clamp(4.25rem, 11vw, 4.75rem);
    -webkit-font-smoothing: antialiased;
}

/* —— 区块标题 —— */
.bm-section-head {
    text-align: center;
    max-width: 36rem;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: clamp(2rem, 5vw, 2.75rem);
}

.section-title {
    font-size: var(--bm-text-3xl);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: var(--bm-space-3);
    color: var(--bm-text);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: "";
    display: block;
    width: 2.5rem;
    height: 3px;
    margin: 0.65rem auto 0;
    border-radius: var(--bm-radius-pill);
    background: linear-gradient(90deg, var(--bm-brand), var(--bm-accent));
}

.section-subtitle {
    font-size: var(--bm-text-md);
    color: var(--bm-text-muted);
    margin-bottom: 0;
    font-weight: 400;
    line-height: var(--bm-leading-relaxed);
}

/* —— Hero —— */
.hero-section {
    background:
        radial-gradient(ellipse 100% 80% at 50% -20%, var(--bm-hero-sky) 0%, transparent 55%),
        radial-gradient(ellipse 70% 50% at 80% 100%, var(--bm-hero-green) 0%, transparent 50%),
        var(--bm-hero-gradient);
    padding: clamp(3rem, 9vw, 5.5rem) 0 clamp(2rem, 5vw, 3.25rem);
    border-bottom: 1px solid var(--bm-border-light);
    position: relative;
    z-index: 10;
    overflow: visible;
}

.hero-section:has(.search-suggestions:not(.d-none)) {
    z-index: 50;
}

.hero-eyebrow {
    display: inline-block;
    font-size: var(--bm-text-sm);
    font-weight: 600;
    color: var(--bm-brand);
    background: var(--bm-brand-subtle);
    border: 1px solid var(--bm-brand-muted);
    padding: 0.35rem 0.85rem;
    border-radius: var(--bm-radius-pill);
    margin-bottom: var(--bm-space-5);
    letter-spacing: 0.02em;
}

.hero-title {
    font-size: var(--bm-text-4xl);
    font-weight: 800;
    letter-spacing: -0.04em;
    margin-bottom: clamp(1.75rem, 4vw, 2.5rem);
    line-height: var(--bm-leading-tight);
    color: var(--bm-text);
}

html.bm-lite .hero-title.bm-gradient-text {
    background: none;
    -webkit-text-fill-color: unset;
    color: var(--bm-text);
}

/* —— 搜索 —— */
.search-container {
    max-width: 680px;
    margin: 0 auto;
    position: relative;
    z-index: 30;
}

.search-rim {
    position: relative;
    border-radius: var(--bm-radius-xl);
    border: 1px solid var(--bm-border-light-strong);
    background: var(--bm-surface-card);
    box-shadow: var(--bm-shadow-lg);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.search-rim:focus-within {
    border-color: var(--bm-border-brand);
    box-shadow: var(--bm-focus-ring), var(--bm-shadow-md);
}

.search-container:has(.search-suggestions:not(.d-none)) .search-rim {
    border-radius: var(--bm-radius-lg) var(--bm-radius-lg) 0 0;
    border-bottom-color: transparent;
}

.search-rim form {
    display: flex;
    align-items: stretch;
    gap: 0.5rem;
    padding: 0.4rem;
    border-radius: inherit;
}

.search-box {
    flex: 1;
    min-height: 3.5rem;
    background: transparent;
    border: none;
    border-radius: var(--bm-radius-md);
    padding: 0 1rem;
    font-size: var(--bm-text-md);
    width: 100%;
    color: var(--bm-text);
}

.search-box::placeholder {
    color: var(--bm-text-muted);
}

.search-box:focus {
    outline: none;
}

.search-btn {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    background: var(--bm-brand);
    border: none;
    border-radius: var(--bm-radius-md);
    min-height: 3.5rem;
    padding: 0 1.25rem;
    color: #fff;
    font-size: var(--bm-text-md);
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.search-btn:hover {
    background: var(--bm-brand-hover);
}

.search-btn:active {
    background: var(--bm-brand-active);
}

.search-btn-label {
    display: none;
}

@media (min-width: 480px) {
    .search-btn-label {
        display: inline;
    }
}

/* —— 常用工具 / 分类 / 推荐：层级低于展开中的搜索下拉 —— */
.bm-tools-section,
.categories-section,
.featured-section,
.bm-cta-band {
    position: relative;
    z-index: 1;
}

/* —— 分类区 —— */
.categories-section {
    padding: clamp(3.5rem, 8vw, 5rem) 0;
    background: var(--bm-surface);
    content-visibility: auto;
    contain-intrinsic-size: 1px 480px;
}

.category-card {
    background: var(--bm-surface-card);
    border-radius: var(--bm-radius-lg);
    padding: 1.5rem 1.25rem;
    text-align: center;
    box-shadow: var(--bm-shadow-card);
    transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
    border: 1px solid var(--bm-border-light);
    height: 100%;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.category-card[data-platform="windows"] .category-icon-wrap {
    background: linear-gradient(145deg, rgba(0, 120, 215, 0.12), rgba(13, 159, 110, 0.08));
    color: #0078d7;
}

.category-card[data-platform="macos"] .category-icon-wrap,
.category-card[data-platform="mac"] .category-icon-wrap {
    background: linear-gradient(145deg, rgba(15, 23, 42, 0.08), rgba(100, 116, 139, 0.12));
    color: #334155;
}

.category-card[data-platform="ios"] .category-icon-wrap {
    background: linear-gradient(145deg, rgba(15, 23, 42, 0.1), rgba(59, 130, 246, 0.1));
    color: #1d4ed8;
}

.category-card[data-platform="android"] .category-icon-wrap {
    background: linear-gradient(145deg, rgba(61, 220, 132, 0.15), rgba(13, 159, 110, 0.08));
    color: #16a34a;
}

.category-card[data-platform="excel-mb"] .category-icon-wrap {
    background: linear-gradient(145deg, rgba(22, 163, 74, 0.14), rgba(250, 204, 21, 0.12));
    color: #15803d;
}

.category-card:focus-visible {
    outline: 2px solid var(--bm-brand);
    outline-offset: 2px;
}

.category-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--bm-shadow-hover);
    border-color: var(--bm-border-brand);
}

.category-icon-wrap {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: var(--bm-radius-md);
    background: linear-gradient(145deg, var(--bm-brand-subtle), var(--bm-accent-subtle));
    color: var(--bm-brand);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
    transition: transform 0.22s ease;
}

.category-card:hover .category-icon-wrap {
    transform: scale(1.06);
}

.category-title {
    font-size: var(--bm-text-lg);
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--bm-text);
}

.category-description {
    color: var(--bm-text-muted);
    font-size: var(--bm-text-sm);
    margin-bottom: 1rem;
    line-height: var(--bm-leading-snug);
    flex-grow: 1;
}

.category-count {
    background: var(--bm-surface-section);
    color: var(--bm-text-secondary);
    padding: 0.35rem 0.85rem;
    border-radius: var(--bm-radius-pill);
    font-size: var(--bm-text-xs);
    font-weight: 600;
    border: 1px solid var(--bm-border-light);
}

.category-card:hover .category-count {
    background: var(--bm-brand-subtle);
    color: var(--bm-brand);
    border-color: var(--bm-brand-muted);
}

/* —— 推荐软件 —— */
.featured-section {
    padding: clamp(3.5rem, 8vw, 5rem) 0;
    background: var(--bm-surface-muted);
    border-top: 1px solid var(--bm-border-light);
    content-visibility: auto;
    contain-intrinsic-size: 1px 520px;
}

.software-card {
    background: var(--bm-surface-card);
    border-radius: var(--bm-radius-lg);
    overflow: hidden;
    box-shadow: var(--bm-shadow-card);
    transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
    border: 1px solid var(--bm-border-light);
    height: 100%;
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

.software-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--bm-shadow-hover);
    border-color: var(--bm-border-light-strong);
}

.software-image {
    aspect-ratio: 4 / 3;
    max-height: 160px;
    background: linear-gradient(160deg, #f8fafc 0%, #f1f5f9 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    position: relative;
    overflow: hidden;
}

.software-image img {
    width: auto;
    height: auto;
    max-width: 72%;
    max-height: 72%;
    object-fit: contain;
    border-radius: var(--bm-radius-sm);
}

.software-image-fallback {
    font-size: 2rem;
    color: var(--bm-text-muted);
}

.software-image img + .software-image-fallback {
    display: none !important;
}

.software-content {
    background: var(--bm-surface-card);
}

.software-title {
    font-size: var(--bm-text-md);
    font-weight: 600;
    color: var(--bm-text);
}

.software-description {
    color: var(--bm-text-muted);
    font-size: var(--bm-text-sm);
}

.software-meta {
    font-size: var(--bm-text-xs);
}

.software-version {
    color: var(--bm-text-muted);
    font-weight: 500;
}

.download-btn {
    background: var(--bm-brand-subtle);
    color: var(--bm-brand);
    border: 1px solid var(--bm-brand-muted);
    padding: 0.35rem 0.65rem;
    border-radius: var(--bm-radius-sm);
    font-size: var(--bm-text-xs);
    font-weight: 600;
    white-space: nowrap;
    transition: background 0.15s ease, color 0.15s ease;
}

.software-card:hover .download-btn {
    background: var(--bm-brand);
    color: #fff;
    border-color: var(--bm-brand);
}

/* —— 搜索建议 —— */
.search-suggestions {
    position: absolute !important;
    left: 0;
    right: 0;
    top: 100%;
    margin-top: 0;
    width: 100%;
    max-height: 320px;
    overflow-y: auto;
    z-index: 50;
    background: var(--bm-surface-card) !important;
    border: 1px solid var(--bm-border-light-strong) !important;
    border-top: none;
    border-radius: 0 0 var(--bm-radius-lg) var(--bm-radius-lg) !important;
    box-shadow: var(--bm-shadow-lg) !important;
}

.search-suggestions.search-suggestions--open {
    animation: suggestPanelIn 0.18s ease-out;
}

@keyframes suggestPanelIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

.suggestion-item {
    transition: background-color 0.12s ease;
    color: var(--bm-text) !important;
    padding: 0.55rem 1rem !important;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    min-height: 44px;
}

.suggestion-item:hover {
    background-color: var(--bm-surface-section);
}

.suggestion-item.selected {
    background-color: var(--bm-brand) !important;
    color: #fff !important;
}

.suggestion-item.selected .fw-bold,
.suggestion-item.selected .text-muted {
    color: rgba(255, 255, 255, 0.9) !important;
}

.highlight {
    font-weight: 600;
    background: var(--bm-brand-subtle);
    border-radius: 3px;
    padding: 0 0.12em;
}

.cursor-pointer {
    cursor: pointer;
}

.is-home .text-primary {
    color: var(--bm-brand) !important;
}

.is-home .suggestion-item .text-warning {
    color: var(--bm-brand) !important;
}

@media (prefers-reduced-motion: reduce) {
    .category-card,
    .category-card:hover,
    .software-card,
    .software-card:hover,
    .category-icon-wrap {
        transition: none !important;
        transform: none !important;
    }

    .search-suggestions.search-suggestions--open {
        animation: none;
    }
}