/* ======================================================
   新外网络 - 帮助中心样式 (help.css)
   ====================================================== */

/* ===== Hero ===== */
.help-hero {
    background: linear-gradient(135deg, #0f172a 0%, #172554 50%, #1e293b 100%);
    padding: 80px 0 100px;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.help-hero::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 700px;
    height: 700px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(6, 182, 212, .1) 0%, transparent 70%);
    animation: helpPulse 7s ease-in-out infinite;
}

.help-hero::after {
    content: '';
    position: absolute;
    bottom: -40%;
    left: -5%;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59, 130, 246, .08) 0%, transparent 70%);
    animation: helpPulse 9s ease-in-out infinite reverse;
}

@keyframes helpPulse {

    0%,
    100% {
        opacity: .5;
        transform: scale(1);
    }

    50% {
        opacity: 1;
        transform: scale(1.08);
    }
}

.help-hero-inner {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 60px;
}

.help-hero-content {
    flex: 1;
}

.help-hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(6, 182, 212, .15);
    border: 1px solid rgba(6, 182, 212, .25);
    border-radius: 999px;
    padding: 6px 18px;
    font-size: 13px;
    color: #67e8f9;
    margin-bottom: 20px;
}

.help-hero h1 {
    font-size: 40px;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -.5px;
    line-height: 1.2;
}

.help-hero h1 span {
    background: linear-gradient(90deg, #22d3ee, #38bdf8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.help-hero-desc {
    font-size: 16px;
    opacity: .7;
    max-width: 520px;
    line-height: 1.8;
}

.help-hero-search {
    flex-shrink: 0;
    width: 380px;
}

.help-hero-search-box {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(255, 255, 255, .15);
    border-radius: 14px;
    padding: 14px 20px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: all .3s ease;
}

.help-hero-search-box:focus-within {
    background: rgba(255, 255, 255, .12);
    border-color: rgba(6, 182, 212, .4);
}

.help-hero-search-box i {
    color: rgba(255, 255, 255, .4);
    font-size: 16px;
}

.help-hero-search-box input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    color: #fff;
    font-size: 15px;
}

.help-hero-search-box input::placeholder {
    color: rgba(255, 255, 255, .35);
}

.help-search-btn {
    flex-shrink: 0;
    padding: 8px 24px;
    background: linear-gradient(135deg, #06b6d4, #0891b2);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all .3s ease;
}

.help-search-btn:hover {
    background: linear-gradient(135deg, #0891b2, #0e7490);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(6, 182, 212, .3);
}

/* ===== 两栏布局 ===== */
.xw-help-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 28px;
    padding: 32px 0 60px;
}

/* ===== 左侧：文章列表 ===== */
.xw-help-articles {
    min-width: 0;
}

/* 覆盖式 loading：切换分类时内容不消失，只加半透明遮罩 */
.xw-articles-wrapper {
    position: relative;
    transition: opacity .2s ease;
}

.xw-articles-wrapper.xw-loading {
    opacity: .5;
    pointer-events: none;
}

.xw-help-search {
    margin-bottom: 24px;
}

.xw-help-search .xw-search-input {
    width: 100%;
    padding: 12px 16px 12px 44px;
    border-radius: var(--xw-radius-md);
    border: 1px solid var(--xw-gray-200);
    font-size: 15px;
    outline: none;
    background: var(--xw-card-bg);
    transition: border-color .2s;
}

.xw-help-search .xw-search-input:focus {
    border-color: var(--xw-primary);
}

.xw-help-search .xw-search-wrapper {
    position: relative;
}

.xw-help-search .xw-search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--xw-gray-400);
    font-size: 16px;
}

/* 文章项 */
.xw-article-item {
    background: var(--xw-card-bg);
    border-radius: var(--xw-radius);
    border: 1px solid var(--xw-gray-100);
    padding: 20px 24px;
    margin-bottom: 12px;
    cursor: pointer;
    transition: var(--xw-transition);
    display: flex;
    gap: 20px;
    text-decoration: none;
    color: inherit;
}

.xw-article-item:hover {
    border-color: var(--xw-primary-100);
    box-shadow: var(--xw-shadow);
    transform: translateY(-2px);
    text-decoration: none;
    color: inherit;
}

/* 缩略图 */
.xw-article-thumb {
    flex-shrink: 0;
    width: 120px;
    height: 80px;
    border-radius: var(--xw-radius-sm);
    overflow: hidden;
}

.xw-article-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 文章主体 */
.xw-article-body {
    flex: 1;
    min-width: 0;
}

.xw-article-item h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--xw-gray-800);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.xw-article-item h3 i {
    color: var(--xw-primary);
    font-size: 14px;
}

/* 置顶标签 */
.xw-tag-top {
    display: inline-block;
    padding: 1px 8px;
    font-size: 11px;
    font-weight: 600;
    color: #fff;
    background: var(--xw-primary);
    border-radius: 3px;
    line-height: 1.6;
    vertical-align: middle;
}

.xw-article-item .xw-article-desc {
    font-size: 14px;
    color: var(--xw-gray-500);
    line-height: 1.6;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.xw-article-item .xw-article-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 12px;
    color: var(--xw-gray-400);
}

.xw-article-item .xw-article-meta i {
    margin-right: 4px;
}

/* 分页 */
.xw-help-pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 24px;
}

.xw-help-pagination button {
    padding: 8px 14px;
    border-radius: var(--xw-radius-sm);
    border: 1px solid var(--xw-gray-200);
    background: var(--xw-card-bg);
    font-size: 14px;
    cursor: pointer;
    transition: var(--xw-transition);
    color: var(--xw-gray-600);
}

.xw-help-pagination button:hover {
    border-color: var(--xw-primary);
    color: var(--xw-primary);
}

.xw-help-pagination button.active {
    background: var(--xw-primary);
    border-color: var(--xw-primary);
    color: #fff;
}

.xw-help-pagination button:disabled {
    opacity: .5;
    cursor: not-allowed;
}

/* ===== 右侧：分类树 ===== */
.xw-help-sidebar {
    position: sticky;
    top: 96px;
    align-self: start;
}

.xw-help-sidebar .xw-sidebar-card {
    background: var(--xw-card-bg);
    border-radius: var(--xw-radius);
    border: 1px solid var(--xw-gray-100);
    padding: 24px;
}

.xw-help-sidebar .xw-sidebar-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--xw-gray-800);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--xw-gray-100);
}

.xw-category-list {
    list-style: none;
}

.xw-category-list li {
    margin-bottom: 2px;
}

.xw-category-list li a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border-radius: var(--xw-radius-sm);
    font-size: 14px;
    color: var(--xw-gray-600);
    transition: var(--xw-transition);
}

.xw-category-list li a:hover,
.xw-category-list li a.active {
    background: var(--xw-primary-50);
    color: var(--xw-primary);
}

.xw-category-list li a .xw-count {
    font-size: 12px;
    color: var(--xw-gray-400);
    background: var(--xw-gray-100);
    padding: 2px 8px;
    border-radius: 100px;
    min-width: 24px;
    text-align: center;
}

.xw-category-list li a.active .xw-count {
    background: var(--xw-primary-100);
    color: var(--xw-primary);
}

/* ===== 空状态 ===== */
.xw-help-empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--xw-gray-400);
}

.xw-help-empty i {
    font-size: 48px;
    margin-bottom: 16px;
    display: block;
}

.xw-help-empty p {
    font-size: 15px;
}

/* ===== 响应式 ===== */
@media (max-width: 991px) {
    .xw-help-layout {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .xw-help-sidebar {
        position: static;
        order: -1;
    }

    .xw-article-item {
        padding: 18px 20px;
    }

    .xw-article-thumb {
        width: 100px;
        height: 68px;
    }

    .xw-article-item h3 {
        font-size: 15px;
    }

    .xw-article-item .xw-article-desc {
        font-size: 13px;
    }

    .xw-help-pagination {
        flex-wrap: wrap;
        gap: 6px;
    }

    .xw-help-pagination button {
        padding: 7px 12px;
        font-size: 13px;
    }
}

@media (max-width: 767px) {
    .xw-help-layout {
        padding: 24px 0 40px;
    }

    .xw-help-search {
        margin-bottom: 20px;
    }

    .xw-help-search .xw-search-input {
        padding: 10px 14px 10px 40px;
        font-size: 14px;
    }

    .xw-help-search .xw-search-icon {
        left: 14px;
        font-size: 15px;
    }

    .xw-article-item {
        padding: 16px 18px;
        margin-bottom: 10px;
        gap: 16px;
    }

    .xw-article-thumb {
        width: 90px;
        height: 60px;
    }

    .xw-article-item h3 {
        font-size: 14px;
        margin-bottom: 5px;
    }

    .xw-article-item .xw-article-desc {
        font-size: 13px;
        margin-bottom: 6px;
        -webkit-line-clamp: 2;
    }

    .xw-article-item .xw-article-meta {
        font-size: 11px;
        gap: 12px;
    }

    .xw-help-pagination {
        margin-top: 20px;
    }

    .xw-help-pagination button {
        padding: 6px 10px;
        font-size: 12px;
    }

    .xw-help-sidebar .xw-sidebar-card {
        padding: 20px;
    }

    .xw-help-sidebar .xw-sidebar-title {
        font-size: 15px;
        margin-bottom: 14px;
        padding-bottom: 10px;
    }

    .xw-category-list li a {
        padding: 9px 12px;
        font-size: 13px;
    }

    .xw-category-list li a .xw-count {
        font-size: 11px;
        padding: 2px 6px;
    }

    .xw-help-empty {
        padding: 48px 16px;
    }

    .xw-help-empty i {
        font-size: 40px;
    }

    .xw-help-empty p {
        font-size: 14px;
    }
}

@media (max-width: 575px) {
    .xw-article-item {
        flex-direction: column;
        gap: 12px;
    }

    .xw-article-thumb {
        width: 100%;
        height: 160px;
    }

    .xw-article-item h3 {
        font-size: 14px;
    }

    .xw-article-item .xw-article-desc {
        font-size: 12px;
    }

    .xw-article-item .xw-article-meta {
        font-size: 11px;
    }

    .xw-help-pagination button {
        padding: 5px 9px;
        font-size: 11px;
    }
}

/* Hero 响应式 */
@media (max-width: 992px) {
    .help-hero-inner {
        flex-direction: column;
        gap: 36px;
    }

    .help-hero h1 {
        font-size: 30px;
    }

    .help-hero-search {
        width: 100%;
    }
}

@media (max-width: 576px) {
    .help-hero {
        padding: 60px 0 80px;
    }

    .help-hero h1 {
        font-size: 24px;
    }

    .help-hero-search {
        width: 100%;
    }
}
/* ===== 补充工具类样式 ===== */

/* ======================================================
   新外网络 - 帮助中心列表页内联样式提取 (help.css)
   ====================================================== */

/* 骨架屏卡片（覆盖 common.css 默认 padding:28px） */
.xw-skeleton-card {
    padding: 20px 24px;
    margin-bottom: 12px;
}

/* 最后一个骨架屏卡片取消底部间距 */
.xw-skeleton-card:last-child {
    margin-bottom: 0;
}