/* ===================================================================
   AI-News-Radar - Layout
   ───────────────────────────────────────────────────────────────────
   · Shell 主容器
   · Hero 头部
   · 控制栏
   · 新闻列表布局
   · 分组结构
   · 响应式断点
   =================================================================== */

/* ────────────── 主容器 ────────────── */
.shell {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 20px 60px;
}

@supports(padding: max(0px)) {
    .shell {
        padding-left: max(20px, env(safe-area-inset-left));
        padding-right: max(20px, env(safe-area-inset-right));
        padding-bottom: max(60px, env(safe-area-inset-bottom));
    }
}

/* ────────────── Hero 头部 ────────────── */
.hero {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius-xl);
    padding: 28px 32px;
    -webkit-backdrop-filter: blur(24px);
    backdrop-filter: blur(24px);
    box-shadow: var(--shadow-lg), var(--shadow-inner-glow);
    animation: fade-up 500ms ease;
}

@media (prefers-color-scheme: dark) {
    .hero {
        background: linear-gradient(145deg, rgba(16, 16, 18, 0.95), rgba(10, 10, 12, 0.98));
        border-color: rgba(255, 255, 255, 0.08);
        box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.05);
    }
}

.hero-headline {
    display: flex;
    gap: 16px;
    align-items: center;
}

.hero-logo {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    border: 1px solid var(--line);
    background: var(--panel-solid);
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
}

@media (prefers-color-scheme: dark) {
    .hero-logo {
        background: rgba(24, 24, 28, 0.9);
        border-color: rgba(255, 255, 255, 0.1);
    }
}

.hero-tag {
    margin: 0;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--muted);
}

.hero h1 {
    margin: 4px 0 0;
    font-size: clamp(22px, 3.5vw, 36px);
    font-weight: 700;
    line-height: 1.2;
    color: var(--ink);
}

@media (prefers-color-scheme: dark) {
    .hero h1 {
        background: linear-gradient(135deg, #ffffff 20%, #94a3b8 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }
}

.hero-sub {
    margin: 10px 0 0;
    color: var(--muted);
    font-size: 14px;
    max-width: 600px;
    line-height: 1.6;
}

/* ────────────── 控制栏 ────────────── */
.controls {
    margin-top: 18px;
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(140px, 0.5fr) auto auto;
    gap: 10px;
    align-items: center;
}

.updated {
    justify-self: end;
    color: var(--muted);
    font-size: 12px;
    white-space: nowrap;
}

.mode-hint {
    margin-top: 8px;
    color: var(--muted);
    font-size: 12px;
}

/* ────────────── 新闻列表外壳 ────────────── */
.list-wrap {
    margin-top: 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius-xl);
    background: var(--panel);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

@media (prefers-color-scheme: dark) {
    .list-wrap {
        background: linear-gradient(180deg, rgba(14, 14, 16, 0.95), rgba(10, 10, 12, 0.98));
        border-color: rgba(255, 255, 255, 0.06);
        box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.04);
    }
}

.list-head {
    padding: 18px 24px;
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    border-bottom: 1px solid var(--line);
}

@media (prefers-color-scheme: dark) {
    .list-head { border-color: rgba(255, 255, 255, 0.06); }
}

.list-head h2 {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
    color: var(--ink);
}

#resultCount {
    color: var(--muted);
    font-size: 13px;
    font-weight: 500;
}

.news-list { display: grid; }

/* ────────────── 站点 & 来源分组 ────────────── */
.site-group {
    border-top: 1px solid var(--line);
}

@media (prefers-color-scheme: dark) {
    .site-group { border-color: rgba(255, 255, 255, 0.05); }
}

.site-group:first-child { border-top: 0; }

.site-group-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 24px;
    background: var(--accent-soft);
    border-bottom: 1px solid var(--line);
}

@media (prefers-color-scheme: dark) {
    .site-group-head {
        background: rgba(255, 255, 255, 0.02);
        border-color: rgba(255, 255, 255, 0.05);
    }
}

.site-group-head h3 {
    margin: 0;
    font-size: 15px;
    font-weight: 700;
    color: var(--ink);
}

.site-group-head span {
    color: var(--muted);
    font-size: 12px;
    font-weight: 500;
}

.site-group-list { display: grid; }

.source-group {
    border-top: 1px solid var(--line);
}

@media (prefers-color-scheme: dark) {
    .source-group { border-color: rgba(255, 255, 255, 0.04); }
}

.source-group:first-child { border-top: 0; }

.source-group-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 24px;
    background: rgba(0, 0, 0, 0.015);
    border-bottom: 1px solid var(--line);
}

@media (prefers-color-scheme: dark) {
    .source-group-head {
        background: rgba(255, 255, 255, 0.015);
        border-color: rgba(255, 255, 255, 0.04);
    }
}

.source-group-head h3 {
    margin: 0;
    font-size: 13px;
    font-weight: 600;
    color: var(--ink-secondary);
}

.source-group-head span {
    color: var(--muted);
    font-size: 12px;
}

.source-group-list { display: grid; }

/* ────────────── 新闻卡片 ────────────── */
.news-card {
    padding: 16px 24px;
    border-top: 1px solid var(--line);
    transition: all var(--transition-normal);
    animation: fade-up 280ms ease;
    display: flex;
    flex-wrap: nowrap;
    gap: 20px;
    align-items: flex-start;
    background: transparent;
}

@media (prefers-color-scheme: dark) {
    .news-card { border-color: rgba(255, 255, 255, 0.04); }
}

.news-card-content {
    flex: 1;
    min-width: 0;
}

.news-card:first-child { border-top: 0; }

.news-card:hover { background: var(--accent-soft); }

@media (prefers-color-scheme: dark) {
    .news-card:hover { background: rgba(255, 255, 255, 0.025); }
}

/* 新内容左侧边条标识 */
.news-card.is-new {
    position: relative;
    background: rgba(59, 130, 246, 0.03);
}

@media (prefers-color-scheme: dark) {
    .news-card.is-new { background: rgba(96, 165, 250, 0.05); }
}

.news-card.is-new::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--new-badge-bg);
    border-radius: 0 3px 3px 0;
}

/* 元信息行 */
.meta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    font-size: 12px;
    color: var(--muted);
}

.site {
    font-weight: 600;
    color: var(--ink);
    display: flex;
    align-items: center;
    gap: 6px;
}

.source {
    padding: 2px 8px;
    border: 1px solid var(--line);
    border-radius: 4px;
    font-size: 10px;
    background: var(--accent-soft);
    color: var(--muted);
}

@media (prefers-color-scheme: dark) {
    .source {
        background: rgba(255, 255, 255, 0.05);
        border-color: rgba(255, 255, 255, 0.08);
    }
}

.time {
    margin-left: auto;
    font-variant-numeric: tabular-nums;
    color: var(--subtle);
}

/* 标题 */
.title {
    margin-top: 8px;
    display: block;
    color: var(--ink);
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    line-height: 1.5;
    transition: color var(--transition-fast);
}

.title-sub {
    color: var(--muted);
    font-size: 13px;
    line-height: 1.5;
    font-weight: 400;
    display: block;
    margin-top: 4px;
}

.title:hover { color: var(--accent-blue); }

/* 摘要 & 封面图 */
.card-summary {
    margin: 8px 0 0;
    font-size: 14px;
    line-height: 1.6;
    color: var(--ink-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-thumb {
    width: 120px;
    height: 80px;
    object-fit: cover;
    border-radius: var(--radius);
    flex-shrink: 0;
    border: 1px solid var(--line);
    margin-top: 4px;
    cursor: zoom-in;
    opacity: 0;
    animation: thumb-in 400ms ease forwards;
}

@media (prefers-color-scheme: dark) {
    .card-thumb { border-color: rgba(255, 255, 255, 0.08); }
}

/* ────────────── 响应式：平板 (≤960px) ────────────── */
@media (max-width: 960px) {
    .shell { padding: 16px 14px 48px; }

    .hero {
        padding: 20px;
        border-radius: var(--radius-lg);
    }

    .hero-logo {
        width: 48px;
        height: 48px;
    }

    .controls { grid-template-columns: 1fr; }
    .updated { justify-self: start; }

    input,
    select {
        min-height: 48px;
        font-size: 16px;
    }

    .mode-btn { padding: 12px 18px; }

    /* 站点标签横向滚动 */
    .site-pills {
        flex-wrap: nowrap;
        overflow-x: auto;
        -ms-overflow-style: none;
        padding-bottom: 4px;
        margin-left: -14px;
        margin-right: -14px;
        padding-left: 14px;
        padding-right: 14px;
    }

    .site-pills::-webkit-scrollbar { display: none; }
    .pill { flex-shrink: 0; }
}

/* ────────────── 响应式：手机 (≤480px) ────────────── */
@media (max-width: 480px) {
    .shell { padding: 12px 10px 40px; }
    .hero { padding: 16px; }
    .hero h1 { font-size: 20px; }
    .hero-logo { width: 42px; height: 42px; }

    .stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 6px;
    }

    .stat { padding: 10px; }
    .stat .v { font-size: 18px; }
    .stat .k { font-size: 10px; }

    .list-head h2 { font-size: 16px; }
    .news-card { padding: 14px 16px; }
    .card-thumb { width: 100px; height: 66px; }

    .lightbox-close {
        top: 16px;
        right: 16px;
        width: 44px;
        height: 44px;
    }
}