/* ============================================================
   so.tkkuajing.com - TK 搜索站样式
   深色主题，与主站 www.tkkuajing.com 风格一致
   ============================================================ */
:root {
    --so-bg: #080b14;
    --so-bg-soft: #0d1120;
    --so-card: #12161f;
    --so-border: #1e2535;
    --so-border-light: #273049;
    --so-text: #e6e9f2;
    --so-text-dim: #9aa4b8;
    --so-primary: #6366f1;
    --so-primary-hover: #4f46e5;
    --so-link: #7ea2ff;
    --so-accent: #f97316;
    --so-grad: linear-gradient(135deg, #ec4899, #8b5cf6 55%, #6366f1);
    --so-radius: 12px;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
    background: var(--so-bg);
    color: var(--so-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a { text-decoration: none; color: inherit; }

/* ---------------- 顶栏 ---------------- */
.so-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 28px;
    border-bottom: 1px solid var(--so-border);
    background: rgba(13, 17, 32, 0.7);
    backdrop-filter: blur(8px);
    position: sticky;
    top: 0;
    z-index: 10;
}

.so-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.so-logo-mark,
.so-home-logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--so-grad);
    color: #fff;
    font-size: 17px;
    box-shadow: 0 4px 14px rgba(139, 92, 246, 0.35);
}

.so-logo-text {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.so-logo-text em {
    font-style: normal;
    background: var(--so-grad);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.so-topbar-right {
    display: flex;
    align-items: center;
    gap: 6px;
}

.so-topbar-link {
    font-size: 13px;
    color: var(--so-text-dim);
    padding: 6px 12px;
    border-radius: 8px;
    transition: all 0.2s;
}

.so-topbar-link:hover {
    color: var(--so-text);
    background: var(--so-card);
}

/* ---------------- 主体 ---------------- */
.so-main {
    flex: 1;
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ---------------- 搜索框 ---------------- */
.so-search {
    display: flex;
    align-items: center;
    background: var(--so-card);
    border: 1px solid var(--so-border);
    border-radius: 999px;
    padding: 4px 6px 4px 18px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.so-search:focus-within {
    border-color: var(--so-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.18);
}

.so-search-icon {
    color: var(--so-text-dim);
    font-size: 15px;
    margin-right: 10px;
    display: inline-flex;
}

.so-search-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--so-text);
    font-size: 15px;
    padding: 10px 4px;
    min-width: 0;
}

.so-search-input::placeholder { color: #5b6478; }

.so-search-btn {
    background: var(--so-grad);
    color: #fff;
    border: none;
    border-radius: 999px;
    padding: 10px 26px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: filter 0.2s;
    white-space: nowrap;
}

.so-search-btn:hover { filter: brightness(1.1); }

/* 大搜索框（首页） */
.so-search--lg {
    padding: 5px 6px 5px 22px;
    max-width: 620px;
    margin: 0 auto;
}

.so-search--lg .so-search-input {
    font-size: 16px;
    padding: 13px 6px;
}

.so-search--lg .so-search-btn {
    padding: 12px 34px;
    font-size: 15px;
}

/* ---------------- 首页 ---------------- */
.so-home {
    padding-top: 40px;
}

.so-home-hero {
    text-align: center;
    padding: 48px 0 36px;
}

.so-home-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.so-home-logo-mark {
    width: 52px;
    height: 52px;
    font-size: 24px;
    border-radius: 14px;
}

.so-home-title {
    margin: 0;
    font-size: 40px;
    font-weight: 800;
    letter-spacing: 1px;
}

.so-home-title em {
    font-style: normal;
    background: var(--so-grad);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.so-home-sub {
    color: var(--so-text-dim);
    font-size: 14px;
    margin: 12px 0 28px;
}

.so-home-hot {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 22px;
}

.so-home-hot-label {
    color: var(--so-text-dim);
    font-size: 13px;
}

.so-home-hot-label i { color: var(--so-accent); margin-right: 2px; }

.so-hot-word {
    font-size: 13px;
    color: var(--so-text-dim);
    background: var(--so-card);
    border: 1px solid var(--so-border);
    padding: 5px 14px;
    border-radius: 999px;
    transition: all 0.2s;
}

.so-hot-word:hover {
    color: #fff;
    border-color: var(--so-primary);
    background: rgba(99, 102, 241, 0.15);
}

/* 三大板块入口 */
.so-home-entries {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 36px;
}

.so-entry {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--so-card);
    border: 1px solid var(--so-border);
    border-radius: var(--so-radius);
    padding: 18px;
    transition: all 0.25s;
    position: relative;
}

.so-entry:hover {
    transform: translateY(-3px);
    border-color: var(--so-border-light);
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.35);
}

.so-entry-icon {
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    font-size: 18px;
    color: #fff;
}

.so-entry--video .so-entry-icon { background: linear-gradient(135deg, #ec4899, #f43f5e); }
.so-entry--news .so-entry-icon  { background: linear-gradient(135deg, #3b82f6, #06b6d4); }
.so-entry--resource .so-entry-icon { background: linear-gradient(135deg, #22c55e, #10b981); }

.so-entry-body { flex: 1; min-width: 0; }

.so-entry-body h3 {
    margin: 0 0 4px;
    font-size: 15px;
}

.so-entry-body p {
    margin: 0;
    font-size: 12px;
    color: var(--so-text-dim);
    line-height: 1.5;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.so-entry-more {
    font-size: 12px;
    color: var(--so-link);
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.so-entry-more i { font-size: 11px; transition: transform 0.2s; }

.so-entry:hover .so-entry-more i { transform: translateX(3px); }

/* ---------------- 结果页 ---------------- */
.so-result {
    padding: 22px 0 40px;
}

.so-result .so-search {
    max-width: 620px;
}

.so-result-meta {
    color: var(--so-text-dim);
    font-size: 13px;
    margin: 18px 0 14px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--so-border);
}

.so-result-meta b { color: var(--so-accent); }

.so-query { color: var(--so-text); font-weight: 600; }

/* 类型 Tab */
.so-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 22px;
    flex-wrap: wrap;
}

.so-tab {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--so-text-dim);
    padding: 8px 16px;
    border-radius: 999px;
    border: 1px solid var(--so-border);
    background: var(--so-card);
    transition: all 0.2s;
}

.so-tab:hover { color: var(--so-text); border-color: var(--so-border-light); }

.so-tab.is-active {
    color: #fff;
    background: var(--so-grad);
    border-color: transparent;
}

.so-tab-count {
    font-size: 11px;
    opacity: 0.75;
}

/* 结果分组 */
.so-group {
    margin-bottom: 30px;
}

.so-group-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    margin: 0 0 14px;
    padding-left: 10px;
    border-left: 3px solid var(--so-primary);
}

.so-group-title i { color: var(--so-primary); font-size: 14px; }

.so-group-count {
    font-size: 12px;
    color: var(--so-text-dim);
    font-weight: 400;
}

.so-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.so-item {
    background: var(--so-card);
    border: 1px solid var(--so-border);
    border-radius: var(--so-radius);
    transition: all 0.2s;
}

.so-item:hover {
    border-color: var(--so-primary);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.12);
}

.so-item-main {
    display: block;
    padding: 16px 18px;
}

.so-item-top {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 7px;
}

.so-type {
    font-size: 11px;
    font-weight: 600;
    padding: 2px 9px;
    border-radius: 999px;
    color: #fff;
}

.so-type--video { background: linear-gradient(135deg, #ec4899, #f43f5e); }
.so-type--news { background: linear-gradient(135deg, #3b82f6, #06b6d4); }
.so-type--resource { background: linear-gradient(135deg, #22c55e, #10b981); }

.so-item-cat {
    font-size: 12px;
    color: var(--so-text-dim);
}

.so-item-title {
    display: block;
    font-size: 16px;
    font-weight: 600;
    color: var(--so-link);
    line-height: 1.5;
}

.so-item:hover .so-item-title { text-decoration: underline; }

.so-item-desc {
    display: block;
    font-size: 13px;
    color: var(--so-text-dim);
    line-height: 1.7;
    margin-top: 6px;
}

.so-item-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 10px;
    font-size: 12px;
    color: #6b7488;
}

.so-item-meta i { margin-right: 3px; }

/* 关键词高亮 */
.so-hl {
    font-style: normal;
    color: var(--so-accent);
    background: rgba(249, 115, 22, 0.16);
    padding: 0 1px;
    border-radius: 3px;
}

/* 空结果 */
.so-empty {
    text-align: center;
    padding: 70px 20px;
    color: var(--so-text-dim);
}

.so-empty i {
    font-size: 44px;
    color: var(--so-border-light);
    margin-bottom: 18px;
    display: inline-block;
}

.so-empty-tip {
    font-size: 13px;
    margin-top: 10px;
    color: #6b7488;
}

/* ---------------- 页脚 ---------------- */
.so-footer {
    text-align: center;
    padding: 24px 20px;
    border-top: 1px solid var(--so-border);
    color: #6b7488;
    font-size: 12px;
}

.so-footer a { color: var(--so-link); }

/* ---------------- 响应式 ---------------- */
@media (max-width: 768px) {
    .so-topbar { padding: 12px 16px; }
    .so-topbar-right { gap: 2px; }
    .so-topbar-link { padding: 6px 8px; font-size: 12px; }
    .so-home { padding-top: 20px; }
    .so-home-hero { padding: 30px 0 24px; }
    .so-home-title { font-size: 32px; }
    .so-home-entries { grid-template-columns: 1fr; }
    .so-result { padding-top: 14px; }
    .so-tabs { gap: 6px; }
    .so-tab { padding: 7px 12px; font-size: 12px; }
}