/* 产品文档平台 - 独立布局，深蓝 Hero + 白底内容 */

.doc-center-page {
    margin: 0;
    padding: 0;
    background: #fff;
    font-family: "HarmonyOS Sans SC Light";
    font-size: 14px;
    color: #333;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ========== Hero 深蓝区域 ========== */
.doc-center-hero {
    background: #00233D;
    color: #fff;
    padding: 84px 24px 64px;
    min-height: 280px;
    box-sizing: border-box;
}

.doc-center-hero-inner {
    max-width: 950px;
    margin: 0 auto;
}

.doc-center-brand {
    display: flex;
    align-items: center;
    gap: 0;
    margin-bottom: 44px;
}

.doc-center-logo {
    display: inline-block;
    color: #fff;
    text-decoration: none;
    line-height: 1;
}

img.homepageintroduction-logo {
    display: block;
    width: 230px;
    height: auto;
    margin: 0 44px 0 0;
}

.doc-center-heading {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    /* 轻微下沉，贴近参考图的视觉居中 */
    padding-top: 2px;
}

.doc-center-title {
    font-size: 32px;
    font-weight: 400;
    margin: 0 0 10px 0;
    color: #fff;
}

.doc-center-subtitle {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.85);
    margin: 0;
}

/* ========== 搜索条 ========== */
.doc-center-search-wrap {
    margin-top: 24px;
    width: 950px;
    max-width: 100%;
    position: relative;
}

.doc-center-search-bar {
    display: flex;
    align-items: stretch;
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
    width: 950px;
    max-width: 100%;
}

.doc-center-filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 0 18px;
    font-size: 14px;
    color: #00D4FF;
    background: transparent;
    border: none;
    border-right: 1px solid #e8e8e8;
    cursor: pointer;
    white-space: nowrap;
}

.doc-center-filter-btn:hover {
    background: #fafafa;
}

.doc-center-arrow {
    font-size: 10px;
    opacity: 0.9;
}

.doc-center-search-input {
    flex: 1;
    min-width: 0;
    padding: 14px 16px;
    font-size: 14px;
    border: none;
    outline: none;
}

.doc-center-search-input::placeholder {
    color: #999;
}

.doc-center-search-btn {
    width: 52px;
    padding: 0;
    border: none;
    background: #f5f5f5;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.doc-center-search-btn:hover {
    background: #eee;
}

.doc-center-search-icon {
    width: 20px;
    height: 20px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.35-4.35'/%3E%3C/svg%3E") center/contain no-repeat;
}

/* ========== 筛选标签 chips ========== */
.doc-center-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 14px;
}

/* ========== 筛选下拉面板（筛选器按钮展开） ========== */
.doc-center-filter-panel {
    display: none;
    position: absolute;
    left: 0;
    top: 56px;
    width: 950px;
    max-width: 100%;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
    z-index: 20;
    overflow: hidden;
}

.doc-center-filter-panel.is-open {
    display: block;
}

.doc-center-filter-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 0;
}

.doc-center-filter-col {
    padding: 18px 18px 8px 18px;
    border-right: 1px solid #edf2f7;
}
.doc-center-filter-col:last-child {
    border-right: none;
}

.doc-center-filter-title {
    font-size: 14px;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 10px;
}

.doc-center-filter-search {
    margin-bottom: 10px;
}

.doc-center-filter-search-input {
    width: 100%;
    height: 34px;
    box-sizing: border-box;
    padding: 0 10px;
    border: 1px solid #e2e8f0;
    border-radius: 4px;
    outline: none;
    font-size: 14px;
    color: #2d3748;
}

.doc-center-filter-search-input:focus {
    border-color: #2b6cb0;
    box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.12);
}

.doc-center-filter-body {
    max-height: 220px;
    overflow: auto;
    padding-right: 8px;
}

.doc-center-more {
    width: 100%;
    margin-top: 8px;
    height: 34px;
    border: none;
    background: transparent;
    color: #2b6cb0;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}
.doc-center-more:hover {
    text-decoration: underline;
}
.doc-center-more-icon {
    width: 14px;
    height: 14px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232b6cb0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E") center/contain no-repeat;
}

.doc-center-radio,
.doc-center-check {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    font-size: 14px;
    color: #2d3748;
    user-select: none;
}

.doc-center-radio input,
.doc-center-check input {
    transform: translateY(0.5px);
}

.doc-center-filter-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 12px 14px;
    border-top: 1px solid #edf2f7;
    background: #fff;
}

.doc-center-filter-reset {
    height: 34px;
    padding: 0 14px;
    border: 1px solid #cbd5e0;
    background: #fff;
    color: #2d3748;
    border-radius: 4px;
    cursor: pointer;
}
.doc-center-filter-reset:hover {
    background: #f7fafc;
}

.doc-center-filter-apply {
    height: 34px;
    padding: 0 16px;
    border: 1px solid #e85c2b;
    background: #e85c2b;
    color: #fff;
    border-radius: 4px;
    cursor: pointer;
}
.doc-center-filter-apply:hover {
    filter: brightness(0.95);
}

.doc-center-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    font-size: 14px;
    color: #333;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 20px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.doc-center-chip-remove {
    padding: 0;
    margin: 0;
    width: 18px;
    height: 18px;
    line-height: 1;
    font-size: 16px;
    color: #666;
    background: none;
    border: none;
    cursor: pointer;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.doc-center-chip-remove:hover {
    color: #e85c2b;
    background: #f5f5f5;
}

/* ========== 主内容区 白底 ========== */
.doc-center-main {
    padding: 44px 24px 56px;
    background: #fff;
    flex: 1;
}

.doc-center-inner {
    max-width: 950px;
    margin: 0 auto;
}

.doc-center-tips {
    margin-bottom: 36px;
}

.doc-center-tips-title {
    font-size: 22px;
    color: #2d3748;
    margin: 0 0 10px 0;
    font-weight: 500;
}

.doc-center-tips p {
    margin: 0;
    color: #4a5568;
    font-size: 16px;
    line-height: 1.6;
}

/* ========== 两列链接 ========== */
.doc-center-two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.doc-center-col-title {
    font-size: 22px;
    color: #00233D;
    margin: 0 0 16px 0;
    font-weight: 500;
    padding-bottom: 8px;
    border-bottom: 1px solid #e2e8f0;
}

.doc-center-link-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.doc-center-link-list li {
    margin: 0 0 10px 0;
}

.doc-center-link-list a {
    color: #00233D;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 16px;
}

.doc-center-link-list a:hover {
    text-decoration: underline;
}

.doc-center-ext-icon {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2300233D' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6'/%3E%3Cpolyline points='15 3 21 3 21 9'/%3E%3Cline x1='10' y1='14' x2='21' y2='3'/%3E%3C/svg%3E") center/contain no-repeat;
}

/* ========== 页脚 ========== */
.doc-center-footer {
    padding: 18px 24px 26px;
    background: #fff;
    border-top: none;
    text-align: center;
}

.doc-center-footer-inner {
    max-width: 950px;
    margin: 0 auto;
    font-size: 14px;
    color: #718096;
}

.doc-center-footer a {
    color: #4a5568;
    text-decoration: none;
}

.doc-center-footer a:hover {
    color: #2b6cb0;
}

.doc-center-footer-sep {
    margin: 0 10px;
    color: #cbd5e0;
}

.doc-center-footer-copy {
    margin: 12px 0 0 0;
    font-size: 14px;
    color: #a0aec0;
}

/* 五档：Phone≤767 | Small 768–1024 | Mid 1025–1439 | Large 1440–1679 | XLarge≥1680 */
@media screen and (max-width: 1679px) {
    .doc-center-title {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(32px * var(--kyd-text-scale, 1)));
    }
    .doc-center-subtitle,
    .doc-center-filter-btn,
    .doc-center-search-input,
    .doc-center-filter-title,
    .doc-center-filter-search-input,
    .doc-center-radio,
    .doc-center-check,
    .doc-center-chip,
    .doc-center-footer-inner,
    .doc-center-footer-copy {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(14px * var(--kyd-text-scale, 1)));
    }
    .doc-center-tips-title,
    .doc-center-col-title {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(22px * var(--kyd-text-scale, 1)));
    }
    .doc-center-tips p,
    .doc-center-link-list a {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(16px * var(--kyd-text-scale, 1)));
    }
}

@media screen and (min-width: 1440px) and (max-width: 1679px) {
    .doc-center-hero {
        padding: 72px 24px 56px;
    }
    .doc-center-main {
        padding: 40px 24px 52px;
    }
}

@media screen and (min-width: 1025px) and (max-width: 1439px) {
    .doc-center-hero {
        padding: 64px 24px 48px;
    }
    .doc-center-main {
        padding: 36px 24px 48px;
    }
    .doc-center-two-col {
        gap: 36px;
    }
}

@media screen and (min-width: 768px) and (max-width: 1024px) {
    .doc-center-hero {
        padding: 56px 20px 40px;
        min-height: 0;
    }
    .doc-center-brand {
        margin-bottom: 32px;
    }
    img.homepageintroduction-logo {
        width: 180px;
        margin-right: 28px;
    }
    .doc-center-filter-grid {
        grid-template-columns: 1fr 1fr;
    }
    .doc-center-filter-col:nth-child(2) {
        border-right: none;
    }
    .doc-center-main {
        padding: 32px 20px 44px;
    }
    .doc-center-two-col {
        gap: 28px;
    }
}

@media screen and (max-width: 767px) {
    .doc-center-hero {
        padding: 40px 16px 32px;
        min-height: 0;
    }
    .doc-center-brand {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
        margin-bottom: 24px;
    }
    img.homepageintroduction-logo {
        width: 160px;
        margin: 0;
    }
    .doc-center-search-bar {
        flex-wrap: wrap;
    }
    .doc-center-filter-btn {
        border-right: none;
        border-bottom: 1px solid #e8e8e8;
        width: 100%;
        justify-content: flex-start;
        padding: 12px 16px;
    }
    .doc-center-search-input {
        flex: 1 1 auto;
        min-width: 0;
    }
    .doc-center-filter-grid {
        grid-template-columns: 1fr;
    }
    .doc-center-filter-col {
        border-right: none;
        border-bottom: 1px solid #edf2f7;
    }
    .doc-center-filter-col:last-child {
        border-bottom: none;
    }
    .doc-center-main {
        padding: 28px 16px 40px;
    }
    .doc-center-two-col {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .doc-center-footer {
        padding: 16px 16px 24px;
    }
}

/* ========== 批量下载入口 (P3-2c) ========== */
.doc-center-bulk-download {
    margin-bottom: 36px;
}

.doc-center-bulk-download-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 24px 28px;
    background: #f0f7ff;
    border: 1px solid #bee3f8;
    border-radius: 8px;
}

.doc-center-bulk-download-title {
    font-size: 18px;
    font-weight: 600;
    color: #00233D;
    margin: 0 0 6px 0;
}

.doc-center-bulk-download-desc {
    margin: 0;
    color: #4a5568;
    font-size: 14px;
    line-height: 1.5;
}

.doc-center-bulk-download-btn {
    flex-shrink: 0;
    padding: 10px 24px;
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    background: #e85c2b;
    border: none;
    border-radius: 4px;
    text-decoration: none;
    cursor: pointer;
    transition: background 0.15s ease;
    white-space: nowrap;
}

.doc-center-bulk-download-btn:hover {
    background: #d54e20;
    color: #fff;
}