/* ==========================================================================
   Maono Download Center - 前台样式
   主题：黄色 + 暖米白底 #F6F5EF
   布局：左侧 sticky 折叠树 / 右侧型号详情
   ========================================================================== */

/* 颜色与尺寸均为变量，主题里重新声明同名变量即可覆盖 */
:root {
    --maono-yellow:        #f5b400;
    --maono-yellow-soft:   #fef5d8;
    --maono-yellow-deeper: #d49b00;
    --maono-ink:           #1a1a1a;
    --maono-text:          #2b2b2b;
    --maono-text-muted:    #888;
    --maono-bg:            #F6F5EF;
    --maono-bg-card:       #ffffff;
    --maono-bg-soft:       #EFEDE3;
    --maono-border:        #E6E3D6;
    --maono-radius:        14px;
    --maono-radius-sm:     10px;
    --maono-shadow:        0 1px 2px rgba(0,0,0,.03);
    --maono-shadow-md:     0 6px 24px rgba(0,0,0,.05);

    --maono-max-w:         1400px;
    --maono-side-w:        280px;
    --maono-search-w:      880px;
}

.maono-dc *,
.maono-dc *::before,
.maono-dc *::after { box-sizing: border-box; }

.maono-dc {
    max-width: var(--maono-max-w);
    margin: 0 auto;
    padding: 56px 32px 80px;
    color: var(--maono-text);
    font: 14px/1.6 -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', Segoe UI, sans-serif;
    background: var(--maono-bg);
}
.maono-dc a { color: inherit; text-decoration: none; }

/* ---------- 顶部 ---------- */
.maono-dc-header { text-align: center; margin-bottom: 32px; }
.maono-dc-title {
    font-size: 28px; font-weight: 600; letter-spacing: -.02em;
    margin: 0 0 6px; color: var(--maono-ink);
}
.maono-dc-subtitle { margin: 0; color: var(--maono-text-muted); font-size: 13px; }

/* ---------- 搜索框 ---------- */
.maono-dc-search {
    position: relative;
    max-width: var(--maono-search-w);
    margin: 0 auto 44px;
    background: var(--maono-bg-card);
    border-radius: 999px;
    box-shadow: var(--maono-shadow-md);
    border: 1px solid var(--maono-border);
    transition: border-color .15s, box-shadow .15s;
}
.maono-dc-search:focus-within {
    border-color: var(--maono-yellow);
    box-shadow: 0 0 0 4px rgba(245,180,0,.18), 0 6px 24px rgba(0,0,0,.05);
}
.maono-dc-search-icon {
    position: absolute; top: 50%; left: 28px;
    transform: translateY(-50%);
    color: var(--maono-text-muted); pointer-events: none;
}
.maono-dc-search-input {
    width: 100%; height: 64px;
    padding: 0 60px 0 64px;
    border: 0; background: transparent; outline: none;
    font: inherit; font-size: 17px; color: var(--maono-ink);
}
.maono-dc-search-input::placeholder { color: var(--maono-text-muted); }
.maono-dc-search-clear {
    position: absolute; top: 50%; right: 22px; transform: translateY(-50%);
    width: 32px; height: 32px; border: 0;
    background: var(--maono-bg-soft); color: var(--maono-text-muted);
    border-radius: 999px; font-size: 18px; line-height: 1;
    cursor: pointer; display: none;
}
.maono-dc-search.has-value .maono-dc-search-clear { display: block; }

.maono-dc-search-results {
    max-width: var(--maono-search-w);
    margin: -28px auto 28px;
    background: var(--maono-bg-card);
    border: 1px solid var(--maono-border);
    border-radius: var(--maono-radius);
    box-shadow: var(--maono-shadow-md);
    overflow: hidden;
}
.maono-dc-search-results:empty,
.maono-dc-search-results[hidden] { display: none; }
.maono-dc-sr-item {
    display: flex; align-items: center; gap: 12px;
    padding: 12px 18px; cursor: pointer;
    border-bottom: 1px solid var(--maono-border);
    text-align: left; width: 100%;
    background: transparent; border-left: 0; border-right: 0; border-top: 0;
    font: inherit;
}
.maono-dc-sr-item:last-child { border-bottom: 0; }
.maono-dc-sr-item:hover { background: var(--maono-yellow-soft); }
.maono-dc-sr-icon {
    flex: 0 0 36px; height: 36px; border-radius: 10px;
    background: var(--maono-yellow); color: #fff;
    display: grid; place-items: center; font-weight: 600;
}
.maono-dc-sr-name { font-weight: 600; }
.maono-dc-sr-sub { color: var(--maono-text-muted); font-size: 12px; }

/* ---------- 主体两栏：顶部齐平，左栏 sticky ---------- */
.maono-dc-main {
    display: grid;
    grid-template-columns: var(--maono-side-w) 1fr;
    gap: 32px;
    align-items: start;
}

/* ---------- 左：折叠树 ---------- */
.maono-dc-side {
    position: sticky;
    top: 24px;
    max-height: calc(100vh - 48px);
    overflow-y: auto;
    overscroll-behavior: contain;
    background: var(--maono-bg-card);
    border: 1px solid var(--maono-border);
    border-radius: var(--maono-radius);
    padding: 14px 12px;
    box-shadow: var(--maono-shadow);
    scrollbar-width: thin;
}
.maono-dc-side::-webkit-scrollbar { width: 6px; }
.maono-dc-side::-webkit-scrollbar-thumb {
    background: var(--maono-border); border-radius: 3px;
}
.maono-dc-side-title {
    font-size: 12px; color: var(--maono-text-muted);
    letter-spacing: .12em; text-transform: uppercase;
    padding: 4px 10px 12px;
}

.maono-dc-tree { display: flex; flex-direction: column; gap: 2px; }

.maono-dc-group + .maono-dc-group { margin-top: 2px; }

.maono-dc-group-head {
    display: flex; align-items: center; gap: 8px;
    width: 100%; padding: 10px 12px;
    border: 0; background: transparent; border-radius: var(--maono-radius-sm);
    font: inherit; font-size: 14px; font-weight: 600;
    color: var(--maono-ink); text-align: left; cursor: pointer;
    transition: background .12s;
}
.maono-dc-group-head:hover { background: var(--maono-yellow-soft); }
.maono-dc-group-name { flex: 1; min-width: 0; }
.maono-dc-group-count {
    font-size: 11px; font-weight: 500; color: var(--maono-text-muted);
    background: var(--maono-bg-soft); border-radius: 999px;
    padding: 1px 8px;
}
.maono-dc-caret {
    flex: 0 0 16px; width: 16px; height: 16px;
    background: currentColor; opacity: .45;
    -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%23000' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat;
    mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%23000' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat;
    transition: transform .18s ease;
}
.maono-dc-group.is-open .maono-dc-caret { transform: rotate(180deg); }

.maono-dc-group-body { display: none; padding: 2px 0 6px; }
.maono-dc-group.is-open .maono-dc-group-body { display: block; }

.maono-dc-node {
    display: flex; align-items: center; gap: 10px;
    width: 100%; padding: 8px 12px 8px 16px;
    border: 0; background: transparent; border-radius: var(--maono-radius-sm);
    font: inherit; font-size: 13px; color: var(--maono-text);
    text-align: left; cursor: pointer;
    transition: background .12s, color .12s;
}
.maono-dc-node:hover { background: var(--maono-yellow-soft); }
.maono-dc-node.is-active {
    background: var(--maono-yellow); color: #fff; font-weight: 600;
}
.maono-dc-node-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.maono-dc-node-count {
    flex: 0 0 auto; font-size: 11px; font-weight: 500;
    color: var(--maono-text-muted);
}
.maono-dc-node.is-active .maono-dc-node-count { color: rgba(255,255,255,.85); }

/* ---------- 缩略图 ---------- */
.maono-dc-thumb {
    flex: 0 0 40px; width: 40px; height: 40px;
    border-radius: 12px; background: var(--maono-yellow);
    display: grid; place-items: center; overflow: hidden;
    box-shadow: 0 2px 8px rgba(245,180,0,.28);
}
.maono-dc-thumb img { width: 100%; height: 100%; object-fit: cover; }
.maono-dc-thumb-text { color: #fff; font-size: 16px; font-weight: 700; }
.maono-dc-thumb-sm {
    flex: 0 0 26px; width: 26px; height: 26px;
    border-radius: 8px; box-shadow: none;
}
.maono-dc-thumb-sm .maono-dc-thumb-text { font-size: 12px; }
.maono-dc-node.is-active .maono-dc-thumb {
    background: rgba(255,255,255,.22); box-shadow: none;
}

/* ---------- 右：型号详情 ---------- */
.maono-dc-content { min-width: 0; }

.maono-dc-detail {
    background: var(--maono-bg-card);
    border: 1px solid var(--maono-border);
    border-radius: var(--maono-radius);
    box-shadow: var(--maono-shadow);
    overflow: hidden;
}
.maono-dc-detail[hidden] { display: none; }

.maono-dc-detail-head {
    display: flex; gap: 18px; align-items: flex-start;
    padding: 26px 28px;
    border-bottom: 1px solid var(--maono-border);
    background: linear-gradient(0deg, var(--maono-bg-card), var(--maono-bg-card));
}
.maono-dc-detail-head .maono-dc-thumb {
    flex: 0 0 60px; width: 60px; height: 60px; border-radius: 16px;
}
.maono-dc-detail-head .maono-dc-thumb-text { font-size: 24px; }
.maono-dc-detail-meta { flex: 1; min-width: 0; }
.maono-dc-detail-crumb {
    margin: 0 0 4px; font-size: 12px; color: var(--maono-text-muted);
}
.maono-dc-detail-name {
    margin: 0 0 6px; font-size: 22px; font-weight: 600; color: var(--maono-ink);
}
.maono-dc-detail-desc {
    margin: 0; color: var(--maono-text-muted); font-size: 13px; line-height: 1.7;
}

/* ---------- 文件分组 ---------- */
.maono-dc-block { padding: 22px 28px; border-bottom: 1px solid var(--maono-border); }
.maono-dc-block:last-child { border-bottom: 0; }

.maono-dc-block-title {
    display: flex; align-items: center; gap: 10px;
    margin: 0 0 14px; font-size: 15px; font-weight: 600; color: var(--maono-ink);
}
.maono-dc-block-count {
    font-size: 11px; font-weight: 500; color: var(--maono-text-muted);
    background: var(--maono-bg-soft); border-radius: 999px; padding: 1px 8px;
}

.maono-dc-files { display: flex; flex-direction: column; gap: 10px; }

.maono-dc-file {
    display: flex; align-items: flex-start; gap: 14px;
    padding: 14px 16px;
    background: var(--maono-bg-soft);
    border: 1px solid transparent;
    border-radius: var(--maono-radius-sm);
    transition: border-color .15s, background .15s;
}
.maono-dc-file:hover {
    border-color: var(--maono-yellow);
    background: var(--maono-yellow-soft);
}
.maono-dc-file-ico {
    flex: 0 0 36px; width: 36px; height: 36px;
    border-radius: 10px; background: var(--maono-bg-card);
    display: grid; place-items: center; color: var(--maono-ink);
}
.maono-dc-file-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--maono-yellow);
}
.maono-dc-file-main { flex: 1; min-width: 0; }
.maono-dc-file-name {
    margin: 0 0 3px; font-size: 14px; font-weight: 600; color: var(--maono-ink);
    display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
}
.maono-dc-file-platform {
    font-size: 11px; font-weight: 500; color: var(--maono-text-muted);
    background: var(--maono-bg-card); border-radius: 999px; padding: 1px 8px;
}
.maono-dc-file-info {
    margin: 0; display: flex; gap: 12px; flex-wrap: wrap;
    font-size: 12px; color: var(--maono-text-muted);
}
.maono-dc-file-note {
    margin: 6px 0 0; font-size: 12px; color: var(--maono-text-muted); line-height: 1.6;
}
.maono-dc-file-dl {
    flex: 0 0 auto; align-self: center;
    padding: 8px 20px; border-radius: 999px;
    background: var(--maono-yellow); color: #fff;
    font-size: 13px; font-weight: 600;
    transition: background .15s;
}
.maono-dc-file-dl:hover { background: var(--maono-yellow-deeper); color: #fff; }

/* 更新说明展开区 */
.maono-dc-file-more { margin-top: 8px; }
.maono-dc-file-more summary {
    cursor: pointer; font-size: 12px; color: var(--maono-yellow-deeper);
    list-style: none; display: inline-flex; align-items: center; gap: 4px;
}
.maono-dc-file-more summary::-webkit-details-marker { display: none; }
.maono-dc-file-more summary::after {
    content: ''; width: 8px; height: 8px;
    border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg); transition: transform .15s;
}
.maono-dc-file-more[open] summary::after { transform: rotate(-135deg); }
.maono-dc-file-more ul {
    margin: 8px 0 0; padding-left: 18px;
    font-size: 12px; line-height: 1.8; color: var(--maono-text);
}
.maono-dc-file-hist {
    margin: 8px 0 0; font-size: 12px; color: var(--maono-text-muted);
}

.maono-dc-empty {
    padding: 40px 28px; text-align: center; color: var(--maono-text-muted);
}

/* ---------- 区块标题（底部相关区） ---------- */
.maono-dc-section {
    margin: 0 0 16px; font-size: 20px; font-weight: 600; color: var(--maono-ink);
}

/* ---------- 您可能需要 ---------- */
.maono-dc-needs { margin-top: 56px; }
.maono-dc-needs-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
.maono-dc-need {
    background: var(--maono-bg-card);
    border: 1px solid var(--maono-border);
    border-radius: var(--maono-radius);
    padding: 24px 22px;
    box-shadow: var(--maono-shadow);
}
.maono-dc-need-ico {
    width: 40px; height: 40px; border-radius: 12px;
    background: var(--maono-yellow-soft); color: var(--maono-yellow-deeper);
    display: grid; place-items: center; margin-bottom: 12px;
}
.maono-dc-need h4 { margin: 0 0 4px; font-size: 15px; font-weight: 600; color: var(--maono-ink); }
.maono-dc-need p { margin: 0 0 14px; font-size: 13px; color: var(--maono-text-muted); }
.maono-dc-need-cta {
    display: inline-block; padding: 7px 16px; border-radius: 999px;
    background: var(--maono-yellow); color: #fff;
    font-size: 13px; font-weight: 600; transition: background .15s;
}
.maono-dc-need-cta:hover { background: var(--maono-yellow-deeper); color: #fff; }

/* ---------- 响应式 ---------- */
@media (max-width: 1240px) {
    :root {
        --maono-side-w:   240px;
        --maono-search-w: 760px;
    }
}
@media (max-width: 980px) {
    .maono-dc-main { grid-template-columns: 1fr; }
    .maono-dc-side {
        position: static; max-height: none; overflow: visible;
    }
    .maono-dc-needs-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
    .maono-dc { padding: 36px 16px 56px; }
    .maono-dc-search-input { height: 56px; font-size: 15px; padding: 0 54px 0 52px; }
    .maono-dc-search-icon { left: 20px; width: 19px; height: 19px; }
    .maono-dc-search { margin-bottom: 28px; }
    .maono-dc-detail-head { padding: 20px; }
    .maono-dc-block { padding: 18px 20px; }
    .maono-dc-file { flex-wrap: wrap; }
    .maono-dc-file-dl { width: 100%; text-align: center; }
}