/* ============================================
   英文缩写词典 - 全局样式
   suoxie.cnguojiu.com.cn
   ============================================ */
:root {
    --primary: #4f46e5;
    --primary-light: #6366f1;
    --primary-dark: #4338ca;
    --accent: #06b6d4;
    --bg: #f5f7fb;
    --card-bg: #ffffff;
    --text: #1e293b;
    --text-light: #64748b;
    --border: #e2e8f0;
    --radius: 12px;
    --shadow: 0 1px 3px rgba(0,0,0,.06), 0 4px 16px rgba(0,0,0,.05);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

.container { max-width: 1100px; margin: 0 auto; padding: 0 16px; }
.wrap { min-height: 100vh; display: flex; flex-direction: column; }
.main-content { flex: 1; padding-bottom: 40px; }

/* ---------- 头部 ---------- */
.site-header {
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #06b6d4 100%);
    padding: 28px 0 24px;
    color: #fff;
}
.header-inner {
    display: flex;
    align-items: baseline;
    gap: 14px;
    margin-bottom: 20px;
}
.logo {
    font-size: 26px;
    font-weight: 800;
    color: #fff !important;
    letter-spacing: .5px;
}
.logo:hover { opacity: .9; }
.tagline { font-size: 13px; opacity: .85; }

.search-box { display: flex; max-width: 620px; }
.search-box input {
    flex: 1;
    padding: 12px 18px;
    border: none;
    border-radius: 8px 0 0 8px;
    font-size: 15px;
    outline: none;
    color: var(--text);
}
.search-box button {
    padding: 0 26px;
    background: #0f172a;
    color: #fff;
    border: none;
    border-radius: 0 8px 8px 0;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background .2s;
}
.search-box button:hover { background: #1e293b; }

/* ---------- 导航 ---------- */
.site-nav {
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}
.site-nav .container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    padding-top: 6px;
    padding-bottom: 6px;
    gap: 2px;
}
.site-nav a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 34px;
    height: 34px;
    padding: 0 8px;
    margin: 2px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-light);
    transition: all .15s;
}
.site-nav a:hover { background: #eef2ff; color: var(--primary); }
.site-nav a.active { background: var(--primary); color: #fff; }
.nav-sep { width: 1px; height: 20px; background: var(--border); margin: 0 8px; }

/* ---------- Hero ---------- */
.hero {
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    color: #fff;
    text-align: center;
    padding: 34px 16px;
    margin: 24px 0;
    border-radius: var(--radius);
}
.hero h1 { font-size: 28px; margin-bottom: 8px; }
.hero p { font-size: 15px; opacity: .9; }
.hero strong { font-weight: 800; }

/* ---------- 标题 ---------- */
.section-title {
    font-size: 19px;
    color: var(--text);
    margin: 26px 0 14px;
    padding-left: 12px;
    border-left: 4px solid var(--primary);
    line-height: 1.3;
}
.page-title { font-size: 22px; margin: 20px 0 16px; }
.page-count { font-size: 13px; color: var(--text-light); font-weight: 400; }
.breadcrumb {
    font-size: 13px;
    color: var(--text-light);
    padding: 14px 0 4px;
}

/* ---------- 字母索引 ---------- */
.letter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(88px, 1fr));
    gap: 10px;
}
.letter-cell {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 8px;
    text-align: center;
    transition: all .15s;
}
.letter-cell:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 14px rgba(79,70,229,.18);
    transform: translateY(-2px);
}
.letter { display: block; font-size: 22px; font-weight: 800; color: var(--primary); }
.letter-count { display: block; font-size: 12px; color: var(--text-light); margin-top: 2px; }

/* ---------- 缩写卡片网格 ---------- */
.abbr-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 12px;
}
.abbr-card {
    display: block;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 16px;
    box-shadow: var(--shadow);
    transition: all .15s;
    color: var(--text);
}
.abbr-card:hover {
    border-color: var(--primary);
    box-shadow: 0 6px 20px rgba(79,70,229,.16);
    transform: translateY(-2px);
    color: var(--text);
}
.abbr-word { font-size: 18px; font-weight: 800; color: var(--primary); margin-bottom: 4px; }
.abbr-trans {
    font-size: 13px;
    color: var(--text-light);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

/* ---------- 列表行 ---------- */
.abbr-list { display: flex; flex-direction: column; gap: 10px; margin-top: 6px; }
.abbr-row {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 18px;
    box-shadow: var(--shadow);
}
.abbr-row-main { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.abbr-row-word { font-size: 17px; font-weight: 800; color: var(--primary); }
.abbr-row-word:hover { text-decoration: underline; }
.abbr-row-full { font-size: 14px; color: var(--text); font-style: italic; }
.abbr-row-trans { font-size: 13px; color: var(--text-light); margin-top: 4px; }

/* ---------- 详情页 ---------- */
.detail-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 28px 30px;
    margin: 16px 0;
}
.detail-head { margin-bottom: 22px; padding-bottom: 20px; border-bottom: 1px solid var(--border); }
.detail-word { font-size: 34px; font-weight: 900; color: var(--primary); letter-spacing: 1px; }
.detail-full { font-size: 18px; color: var(--text); margin-top: 6px; font-style: italic; }
.detail-meta { margin-top: 12px; display: flex; gap: 20px; font-size: 13px; color: var(--text-light); }
.detail-sec-title { font-size: 17px; margin-bottom: 12px; color: var(--text); }
.trans-list { list-style: none; }
.trans-list li {
    padding: 10px 14px;
    border-left: 3px solid var(--primary-light);
    background: #f8faff;
    border-radius: 0 8px 8px 0;
    margin-bottom: 8px;
    font-size: 15px;
}
.trans-list .tag {
    display: inline-block;
    background: #eef2ff;
    color: var(--primary);
    border-radius: 6px;
    padding: 1px 8px;
    font-size: 13px;
    font-weight: 600;
    margin-right: 8px;
}

/* ---------- 相邻导航 ---------- */
.adjacent-nav {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin: 18px 0;
}
.adjacent-nav a {
    flex: 1;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 16px;
    font-size: 14px;
    color: var(--text);
    transition: all .15s;
}
.adjacent-nav a:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.nav-label { display: block; font-size: 12px; color: var(--text-light); margin-bottom: 3px; }

/* ---------- 分页 ---------- */
.pagination { margin: 24px 0; text-align: center; }
.pagination ul { display: flex; justify-content: center; flex-wrap: wrap; gap: 6px; list-style: none; }
.pagination li a, .pagination li span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    color: var(--text);
}
.pagination li a:hover { border-color: var(--primary); color: var(--primary); }
.pagination li.active span { background: var(--primary); border-color: var(--primary); color: #fff; font-weight: 700; }

/* ---------- 其他 ---------- */
.no-results {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px;
    text-align: center;
    color: var(--text-light);
    margin: 16px 0;
}
.search-empty { text-align: center; padding: 40px 0; }
.search-empty form { display: flex; max-width: 520px; margin: 0 auto 14px; }
.search-empty input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 8px 0 0 8px;
    font-size: 15px;
    outline: none;
}
.search-empty input:focus { border-color: var(--primary); }
.search-empty button {
    padding: 0 26px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 0 8px 8px 0;
    font-size: 15px;
    cursor: pointer;
}
.search-empty p { font-size: 13px; color: var(--text-light); }

.intro-box {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px 26px;
    box-shadow: var(--shadow);
    font-size: 14px;
    color: var(--text-light);
}
.intro-box p { margin-bottom: 10px; }
.intro-box ul { padding-left: 22px; margin-bottom: 10px; }
.intro-box li { margin-bottom: 6px; }

/* ---------- 页脚 ---------- */
.site-footer {
    background: #0f172a;
    color: #94a3b8;
    padding: 26px 0;
    margin-top: 40px;
    font-size: 13px;
    text-align: center;
}
.site-footer a { color: #c7d2fe; }
.footer-sub { margin-top: 6px; font-size: 12px; opacity: .7; }

/* ---------- 响应式 ---------- */
@media (max-width: 640px) {
    .logo { font-size: 21px; }
    .hero h1 { font-size: 22px; }
    .letter-grid { grid-template-columns: repeat(auto-fill, minmax(64px, 1fr)); }
    .abbr-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
    .detail-card { padding: 20px 18px; }
    .detail-word { font-size: 26px; }
    .site-nav a { min-width: 26px; height: 30px; padding: 0 5px; font-size: 12px; }
}