/* ===== 全局变量 ===== */
:root {
    --bg: #0a0a0f;
    --bg2: #10101a;
    --card: #14142a;
    --card-hover: #1a1a3e;
    --accent: #6c5ce7;
    --accent-light: #a29bfe;
    --accent-glow: rgba(108,92,231,.25);
    --pink: #e84393;
    --cyan: #00cec9;
    --text: #e8e8f0;
    --text-muted: #7f8ca0;
    --border: rgba(108,92,231,.15);
    --border-hover: rgba(108,92,231,.4);
    --code-bg: #0d0d1a;
    --gradient1: linear-gradient(135deg, #6c5ce7 0%, #e84393 100%);
    --gradient2: linear-gradient(135deg, #0d0d1a 0%, #1a1a3e 50%, #0d0d1a 100%);
    --shadow: 0 4px 24px rgba(0,0,0,.4);
    --shadow-accent: 0 8px 32px rgba(108,92,231,.2);
    --radius: 16px;
    --radius-sm: 10px;
}

/* ===== Reset ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    min-height: 100vh;
    overflow-x: hidden;
}
a { color: var(--accent-light); text-decoration: none; transition: all .25s ease; }
a:hover { color: var(--pink); }
::selection { background: var(--accent); color: #fff; }

/* ===== 导航栏 ===== */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(10,10,15,.8);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--border);
    transition: background .3s;
}
.navbar .inner {
    max-width: 1200px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    height: 68px; padding: 0 2rem;
}
.navbar .logo {
    font-size: 1.35rem; font-weight: 800; color: var(--text);
    display: flex; align-items: center; gap: .6rem;
    letter-spacing: -.02em;
}
.navbar .logo .icon {
    width: 36px; height: 36px; border-radius: 10px;
    background: var(--gradient1);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.1rem; color: #fff;
    box-shadow: 0 2px 12px rgba(108,92,231,.4);
}
.navbar nav { display: flex; align-items: center; gap: .5rem; }
.navbar nav a {
    color: var(--text-muted); font-size: .92rem; font-weight: 500;
    padding: .45rem 1.1rem; border-radius: 8px;
    transition: all .25s ease;
}
.navbar nav a:hover { color: var(--text); background: rgba(108,92,231,.1); }
.navbar nav a.active {
    color: #fff; background: var(--accent);
    box-shadow: 0 2px 12px rgba(108,92,231,.4);
}

/* ===== Hero 区域 ===== */
.hero {
    position: relative;
    text-align: center;
    padding: 10rem 2rem 5rem;
    background: var(--gradient2);
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(ellipse at 30% 20%, rgba(108,92,231,.12) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 80%, rgba(232,67,147,.08) 0%, transparent 60%);
    pointer-events: none;
}
.hero-content { position: relative; z-index: 1; }
.hero h1 {
    font-size: 3.2rem; font-weight: 800; letter-spacing: -.03em;
    margin-bottom: .8rem; line-height: 1.2;
}
.hero h1 .gradient-text {
    background: var(--gradient1);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero .subtitle {
    color: var(--text-muted); font-size: 1.2rem; max-width: 520px;
    margin: 0 auto 2rem; line-height: 1.6;
}
.hero .stats {
    display: flex; justify-content: center; gap: 3rem;
    margin-top: 2.5rem;
}
.hero .stat-item { text-align: center; }
.hero .stat-num {
    display: block; font-size: 2rem; font-weight: 800;
    background: var(--gradient1);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero .stat-label { font-size: .85rem; color: var(--text-muted); }

/* ===== 容器 ===== */
.container {
    max-width: 1200px; margin: 0 auto;
    padding: 3rem 2rem 2rem;
}

/* ===== Section 标题 ===== */
.section-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 2rem; padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}
.section-title {
    font-size: 1.6rem; font-weight: 700; letter-spacing: -.02em;
    display: flex; align-items: center; gap: .6rem;
}
.section-title .dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--accent); box-shadow: 0 0 12px var(--accent-glow);
    display: inline-block;
}

/* ===== 文章卡片网格 ===== */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 1.5rem;
}
.post-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    transition: all .35s cubic-bezier(.4,0,.2,1);
    display: flex; flex-direction: column;
    position: relative; overflow: hidden;
}
.post-card::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: var(--gradient1);
    opacity: 0; transition: opacity .35s;
}
.post-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-accent);
}
.post-card:hover::before { opacity: 1; }

.post-card .card-meta {
    display: flex; align-items: center; gap: .6rem;
    font-size: .8rem; color: var(--text-muted); margin-bottom: 1rem;
}
.post-card .card-date {
    display: flex; align-items: center; gap: .3rem;
    background: rgba(108,92,231,.08); padding: .25rem .7rem;
    border-radius: 6px; font-weight: 500;
}
.post-card h2 {
    font-size: 1.2rem; font-weight: 700; margin-bottom: .7rem;
    line-height: 1.45; letter-spacing: -.01em;
}
.post-card h2 a { color: var(--text); }
.post-card h2 a:hover { color: var(--accent-light); }
.post-card .card-summary {
    color: var(--text-muted); font-size: .9rem; flex: 1;
    line-height: 1.65; margin-bottom: 1.2rem;
    display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical;
    overflow: hidden;
}
.post-card .card-footer {
    display: flex; align-items: center; justify-content: space-between;
    padding-top: 1rem; border-top: 1px solid var(--border);
}
.post-card .tags { display: flex; flex-wrap: wrap; gap: .4rem; }
.tag {
    background: rgba(108,92,231,.1); color: var(--accent-light);
    font-size: .75rem; font-weight: 600;
    padding: .2rem .65rem; border-radius: 20px;
    border: 1px solid rgba(108,92,231,.2);
    transition: all .25s;
}
.tag:hover {
    background: var(--accent); color: #fff;
    border-color: var(--accent);
    box-shadow: 0 2px 8px rgba(108,92,231,.3);
}
.read-more {
    font-size: .85rem; font-weight: 600; color: var(--accent-light);
    display: flex; align-items: center; gap: .3rem;
    white-space: nowrap;
}
.read-more:hover { color: var(--pink); gap: .5rem; }

/* ===== 空状态 ===== */
.empty-state {
    text-align: center; padding: 4rem 2rem;
    color: var(--text-muted);
}
.empty-state .icon { font-size: 3rem; margin-bottom: 1rem; opacity: .5; }

/* ===== 分页 ===== */
.pagination {
    display: flex; justify-content: center; align-items: center;
    gap: .5rem; margin-top: 3rem;
}
.pagination a, .pagination span {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 42px; height: 42px; padding: 0 .8rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border); color: var(--text-muted);
    font-size: .9rem; font-weight: 500;
    transition: all .25s;
}
.pagination a:hover { border-color: var(--accent); color: var(--accent-light); background: rgba(108,92,231,.06); }
.pagination .current {
    background: var(--accent); color: #fff;
    border-color: var(--accent);
    box-shadow: 0 2px 12px rgba(108,92,231,.4);
}

/* ===== 文章详情 ===== */
.post-detail {
    max-width: 800px; margin: 0 auto;
    padding: 7rem 2rem 3rem;
}
.back-link {
    display: inline-flex; align-items: center; gap: .4rem;
    color: var(--text-muted); margin-bottom: 2rem;
    font-size: .9rem; font-weight: 500;
    padding: .4rem .8rem; border-radius: 8px;
    transition: all .25s;
}
.back-link:hover {
    color: var(--accent-light);
    background: rgba(108,92,231,.08);
}
.post-detail .post-header {
    margin-bottom: 2.5rem; padding-bottom: 2rem;
    border-bottom: 1px solid var(--border);
}
.post-detail .post-header h1 {
    font-size: 2.4rem; font-weight: 800;
    line-height: 1.3; letter-spacing: -.03em;
    margin-bottom: 1.2rem;
}
.post-detail .post-header .meta {
    display: flex; flex-wrap: wrap; align-items: center; gap: 1rem;
    color: var(--text-muted); font-size: .88rem;
}
.post-detail .post-header .meta-item {
    display: flex; align-items: center; gap: .35rem;
    background: rgba(108,92,231,.06); padding: .3rem .8rem;
    border-radius: 8px;
}

/* 文章正文 */
.post-body { font-size: 1.05rem; color: var(--text); }
.post-body h2 {
    font-size: 1.55rem; margin: 2.5rem 0 1rem;
    padding-bottom: .5rem; border-bottom: 1px solid var(--border);
    color: var(--text); font-weight: 700;
}
.post-body h3 {
    font-size: 1.25rem; margin: 2rem 0 .8rem;
    color: var(--accent-light); font-weight: 600;
}
.post-body p { margin-bottom: 1.3rem; }
.post-body pre {
    background: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1.4rem 1.6rem;
    overflow-x: auto; margin: 1.5rem 0;
    position: relative;
}
.post-body code {
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    font-size: .88rem;
}
.post-body p > code, .post-body li > code {
    background: rgba(108,92,231,.12);
    border: 1px solid rgba(108,92,231,.15);
    padding: .15rem .45rem; border-radius: 5px;
    color: var(--accent-light); font-size: .85rem;
}
.post-body blockquote {
    border-left: 3px solid var(--accent);
    padding: 1rem 1.4rem;
    background: rgba(108,92,231,.04);
    margin: 1.5rem 0; border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--text-muted); font-style: italic;
}
.post-body ul, .post-body ol {
    padding-left: 1.6rem; margin-bottom: 1.3rem;
}
.post-body li { margin-bottom: .45rem; }
.post-body li::marker { color: var(--accent); }
.post-body strong { color: #fff; font-weight: 700; }
.post-body a { color: var(--accent-light); border-bottom: 1px dashed rgba(108,92,231,.4); }
.post-body a:hover { border-bottom-color: var(--pink); }
.post-body img { max-width: 100%; border-radius: var(--radius-sm); margin: 1rem 0; }

/* ===== 关于页 ===== */
.about-page {
    max-width: 800px; margin: 0 auto;
    padding: 7rem 2rem 3rem;
}
.about-page h1 {
    font-size: 2.4rem; font-weight: 800; margin-bottom: .5rem;
    letter-spacing: -.03em;
}
.about-page .about-subtitle {
    color: var(--text-muted); font-size: 1.1rem; margin-bottom: 2.5rem;
    padding-bottom: 2rem; border-bottom: 1px solid var(--border);
}
.about-page p { color: var(--text-muted); margin-bottom: 1rem; font-size: 1.05rem; }
.about-page .highlight {
    background: var(--gradient1);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text; font-weight: 700;
}
.about-page .feature-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1rem; margin: 2rem 0;
}
.about-page .feature-item {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-sm); padding: 1.4rem;
    transition: all .25s;
}
.about-page .feature-item:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}
.about-page .feature-icon { font-size: 1.5rem; margin-bottom: .6rem; }
.about-page .feature-name {
    font-weight: 700; color: var(--text); font-size: .95rem;
    margin-bottom: .3rem;
}
.about-page .feature-desc { color: var(--text-muted); font-size: .85rem; }

/* ===== 页脚 ===== */
.footer {
    text-align: center; padding: 2.5rem 2rem;
    margin-top: 4rem;
    border-top: 1px solid var(--border);
    color: var(--text-muted); font-size: .85rem;
}
.footer a { color: var(--accent-light); }

/* ===== 404 ===== */
.not-found {
    text-align: center; padding: 10rem 2rem 4rem;
    min-height: 80vh; display: flex; flex-direction: column;
    align-items: center; justify-content: center;
}
.not-found h1 {
    font-size: 8rem; font-weight: 900;
    background: var(--gradient1);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text; line-height: 1;
}
.not-found p { color: var(--text-muted); font-size: 1.2rem; margin: 1rem 0 2.5rem; }
.not-found .btn {
    display: inline-flex; align-items: center; gap: .5rem;
    background: var(--accent); color: #fff;
    padding: .8rem 2rem; border-radius: var(--radius-sm);
    font-weight: 600; font-size: .95rem;
    box-shadow: 0 4px 16px rgba(108,92,231,.4);
    transition: all .25s;
}
.not-found .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(108,92,231,.5);
    color: #fff;
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .hero { padding: 8rem 1.5rem 3.5rem; }
    .hero h1 { font-size: 2.2rem; }
    .hero .stats { gap: 1.5rem; }
    .posts-grid { grid-template-columns: 1fr; }
    .post-detail { padding: 6rem 1.2rem 2rem; }
    .post-detail .post-header h1 { font-size: 1.7rem; }
    .about-page { padding: 6rem 1.2rem 2rem; }
    .navbar .inner { padding: 0 1rem; }
    .container { padding: 2rem 1.2rem; }
}
@media (max-width: 480px) {
    .hero h1 { font-size: 1.8rem; }
    .hero .stat-num { font-size: 1.5rem; }
    .post-card { padding: 1.5rem; }
}

/* ===== 图片自适应（无损画质） ===== */
.post-body img {
    max-width: 100%;
    width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: var(--radius-sm);
    margin: 1.5rem 0;
    display: block;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    cursor: zoom-in;
    transition: transform .3s ease;
}
.post-body img:hover { transform: scale(1.01); }

/* 图片灯箱 */
.img-lightbox {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,.92); z-index: 9999;
    display: flex; align-items: center; justify-content: center;
    cursor: zoom-out; opacity: 0; pointer-events: none;
    transition: opacity .3s ease;
}
.img-lightbox.active { opacity: 1; pointer-events: auto; }
.img-lightbox img {
    max-width: 95vw; max-height: 95vh;
    object-fit: contain;
    image-rendering: -webkit-optimize-contrast;
    border-radius: 4px;
    box-shadow: 0 8px 48px rgba(0,0,0,.5);
}

/* ===== 搜索框 ===== */
.search-box {
    position: relative; display: inline-flex; align-items: center;
    margin-left: .8rem;
}
.search-box input {
    width: 0; padding: 0;
    background: transparent; border: 1px solid transparent;
    border-radius: 20px; color: var(--text); font-size: .88rem;
    outline: none; transition: all .35s ease;
    height: 34px;
}
.search-box.open input {
    width: 200px; padding: 0 .9rem 0 2.2rem;
    background: var(--card); border-color: var(--border);
}
.search-box.open input:focus { border-color: var(--accent); }
.search-box .search-icon {
    position: absolute; left: .6rem; top: 50%; transform: translateY(-50%);
    cursor: pointer; font-size: 1rem; z-index: 2;
    color: var(--text-muted); transition: color .25s;
}
.search-box .search-icon:hover { color: var(--accent-light); }
.search-box.open .search-icon { pointer-events: none; }

/* ===== 搜索结果页 ===== */
.search-page {
    max-width: 900px; margin: 0 auto; padding: 7rem 2rem 3rem;
}
.search-page h1 { font-size: 1.8rem; font-weight: 800; margin-bottom: .3rem; }
.search-page .search-meta {
    color: var(--text-muted); margin-bottom: 2rem;
    padding-bottom: 1.5rem; border-bottom: 1px solid var(--border);
}
.search-page .search-meta .keyword {
    color: var(--accent-light); font-weight: 600;
}
.search-page .search-meta .count { color: var(--cyan); }
.search-result-item {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 1.5rem 1.8rem;
    margin-bottom: 1rem; transition: all .25s;
}
.search-result-item:hover {
    border-color: var(--border-hover); transform: translateY(-2px);
    box-shadow: var(--shadow-accent);
}
.search-result-item h3 { margin-bottom: .4rem; }
.search-result-item h3 a { color: var(--text); font-weight: 700; font-size: 1.15rem; }
.search-result-item h3 a:hover { color: var(--accent-light); }
.search-result-item .result-meta {
    font-size: .82rem; color: var(--text-muted); margin-bottom: .6rem;
}
.search-result-item .result-excerpt {
    color: var(--text-muted); font-size: .92rem; line-height: 1.7;
}
.search-result-item .result-excerpt mark {
    background: rgba(108,92,231,.25); color: var(--accent-light);
    padding: .05rem .2rem; border-radius: 3px;
}
.search-input-big {
    width: 100%; padding: .9rem 1.2rem .9rem 2.8rem;
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-sm); color: var(--text);
    font-size: 1rem; outline: none; transition: border-color .25s;
    box-sizing: border-box;
}
.search-input-big:focus { border-color: var(--accent); }
.search-form-wrap {
    position: relative; margin-bottom: 2rem;
}
.search-form-wrap .sicon {
    position: absolute; left: 1rem; top: 50%; transform: translateY(-50%);
    color: var(--text-muted); font-size: 1.1rem;
}

/* 搜索结果优化 - 防止文本溢出 */
.search-result-item {
    overflow: hidden;
    word-wrap: break-word;
    word-break: break-word;
}
.search-result-item h3 {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.search-result-item .result-excerpt {
    overflow-wrap: break-word;
    word-break: break-word;
    hyphens: auto;
}

/* 导航栏响应式优化 */
@media (max-width: 900px) {
    .navbar nav {
        flex-wrap: wrap;
        gap: .3rem;
    }
    .search-box {
        margin-left: 0;
        width: 100%;
        margin-top: .5rem;
    }
    .search-box.open input {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .search-page {
        padding: 6rem 1.5rem 3rem;
    }
    .search-result-item {
        padding: 1.2rem 1.4rem;
    }
}

/* ===== 搜索页面优化样式 ===== */
.search-page {
    max-width: 900px;
    margin: 0 auto;
    padding: 7rem 2rem 3rem;
}

.search-header {
    margin-bottom: 2rem;
}

.search-header h1 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: .8rem;
}

.search-header .search-meta {
    color: var(--text-muted);
    font-size: .95rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.search-header .keyword {
    color: var(--accent-light);
    font-weight: 600;
}

.search-header .count {
    color: var(--cyan);
    font-weight: 700;
}

/* 大搜索框 */
.search-form-big {
    position: relative;
    margin-bottom: 2.5rem;
}

.search-icon-big {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
    color: var(--text-muted);
}

.search-input-big {
    width: 100%;
    padding: 1rem 1.2rem 1rem 3rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 1rem;
    outline: none;
    transition: border-color .25s;
    box-sizing: border-box;
}

.search-input-big:focus {
    border-color: var(--accent);
}

/* 搜索结果容器 */
.results-container {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.result-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.8rem 2rem;
    transition: all .25s;
    overflow: hidden;
}

.result-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-accent);
}

.result-title {
    margin-bottom: .6rem;
    line-height: 1.4;
}

.result-title a {
    color: var(--text);
    font-weight: 700;
    font-size: 1.15rem;
    text-decoration: none;
}

.result-title a:hover {
    color: var(--accent-light);
}

.result-meta {
    font-size: .85rem;
    color: var(--text-muted);
    margin-bottom: .8rem;
    display: flex;
    align-items: center;
    gap: .4rem;
    flex-wrap: wrap;
}

.result-tag {
    color: var(--accent-light);
    font-size: .8rem;
    text-decoration: none;
}

.result-tag:hover {
    color: var(--pink);
}

.result-excerpt {
    color: var(--text-muted);
    font-size: .92rem;
    line-height: 1.7;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    word-wrap: break-word;
    word-break: break-word;
}

.result-excerpt mark {
    background: rgba(108, 92, 231, .3);
    color: var(--accent-light);
    padding: .1rem .3rem;
    border-radius: 3px;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: .5;
}

.empty-text {
    color: var(--text);
    font-size: 1.2rem;
    margin-bottom: .5rem;
}

.empty-hint {
    color: var(--text-muted);
    font-size: .9rem;
    opacity: .6;
}

/* 响应式 */
@media (max-width: 768px) {
    .search-page {
        padding: 6rem 1.2rem 2rem;
    }
    .result-card {
        padding: 1.4rem 1.5rem;
    }
    .search-header h1 {
        font-size: 1.6rem;
    }
}

/* ===== 导航栏搜索框 ===== */
.nav-search {
    display: inline-flex;
    align-items: center;
    margin-left: .5rem;
    gap: 0;
}
.nav-search-input {
    width: 140px;
    padding: .4rem .8rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 8px 0 0 8px;
    color: var(--text);
    font-size: .85rem;
    outline: none;
    height: 34px;
    box-sizing: border-box;
    transition: border-color .25s, width .35s;
}
.nav-search-input:focus {
    border-color: var(--accent);
    width: 200px;
}
.nav-search-btn {
    padding: .4rem .8rem;
    background: var(--accent);
    color: #fff;
    border: 1px solid var(--accent);
    border-radius: 0 8px 8px 0;
    font-size: .82rem;
    cursor: pointer;
    height: 34px;
    box-sizing: border-box;
    transition: background .25s;
    white-space: nowrap;
}
.nav-search-btn:hover {
    background: #5a4bd6;
}
@media (max-width: 768px) {
    .nav-search-input { width: 100px; }
    .nav-search-input:focus { width: 140px; }
}


/* 首页励志语样式 */
.motto-text {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-align: center;
    font-size: 2.8rem;
    font-weight: 900;
    letter-spacing: 0.02em;
    line-height: 1.3;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .motto-text {
        font-size: 1.8rem;
    }
}