/* ===== 格友技术支持中心 站点样式 ===== */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --bg: #f5f7fa;
    --card: #ffffff;
    --text: #1f2937;
    --text-muted: #6b7280;
    --border: #e5e7eb;
    --success: #16a34a;
    --warning: #d97706;
    --danger: #dc2626;
    --radius: 10px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
}

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

.container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* ---- 头部 ---- */
.site-header {
    background: var(--card);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 1px 4px rgba(0,0,0,.05);
    position: sticky; top: 0; z-index: 100;
}
.header-inner { display: flex; align-items: center; gap: 28px; height: 60px; }
.brand { font-size: 18px; font-weight: 700; color: var(--text); white-space: nowrap; }
.main-nav { display: flex; gap: 20px; flex: 1; }
.main-nav a { color: var(--text-muted); font-size: 15px; padding: 4px 2px; }
.main-nav a:hover { color: var(--primary); }
.user-area { display: flex; align-items: center; gap: 10px; }
.user-badge { color: var(--primary); font-size: 14px; font-weight: 600; }
.inline-form { display: inline; }

/* ---- 主体 ---- */
.main-content { padding: 28px 20px 48px; min-height: calc(100vh - 170px); }

.page-title { font-size: 24px; margin: 0 0 6px; }
.page-sub { color: var(--text-muted); margin: 0 0 24px; font-size: 14px; }

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 24px;
    margin-bottom: 16px;
}
.card h3 { margin: 0 0 8px; font-size: 17px; }

.meta { color: var(--text-muted); font-size: 13px; }
.meta .sep { margin: 0 8px; }

/* ---- 首页 hero ---- */
.hero {
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    color: #fff; border-radius: var(--radius);
    padding: 44px 36px; margin-bottom: 28px;
}
.hero h1 { margin: 0 0 10px; font-size: 28px; }
.hero p { margin: 0 0 20px; opacity: .9; }
.hero .btn { background: #fff; color: var(--primary); font-weight: 600; }
.hero .btn:hover { background: var(--primary-light); }

.home-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.home-grid .card { margin-bottom: 0; }
.section-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 4px; }
.more-link { font-size: 13px; }
.list-item { padding: 10px 0; border-top: 1px dashed var(--border); }
.list-item:first-of-type { border-top: none; }
.list-item .meta { display: block; }

/* ---- 徽章 ---- */
.badge {
    display: inline-block; font-size: 12px; padding: 2px 10px;
    border-radius: 999px; background: var(--primary-light); color: var(--primary-dark);
}
.badge-success { background: #dcfce7; color: var(--success); }
.badge-warning { background: #fef3c7; color: var(--warning); }
.badge-gray { background: #f3f4f6; color: var(--text-muted); }

/* ---- 表单 ---- */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; }
.form-control {
    width: 100%; padding: 9px 12px; font-size: 14px;
    border: 1px solid var(--border); border-radius: 8px;
    font-family: inherit; background: #fff; color: var(--text);
}
.form-control:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light); }
textarea.form-control { min-height: 130px; resize: vertical; }
.text-danger { color: var(--danger); font-size: 13px; display: block; margin-bottom: 12px; }
.text-success { color: var(--success); font-size: 13px; display: block; margin-bottom: 12px; }

/* ---- 按钮 ---- */
.btn {
    display: inline-block; padding: 8px 18px; font-size: 14px;
    border-radius: 8px; border: 1px solid transparent; cursor: pointer;
    background: none; font-family: inherit; line-height: 1.5;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-outline { border-color: var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary-light); }
.btn-link { color: var(--text-muted); padding: 4px 6px; }
.btn-link:hover { color: var(--primary); }
.btn-sm { padding: 4px 12px; font-size: 13px; }
.btn-danger { color: var(--danger); }
.btn-danger:hover { color: #b91c1c; }

/* ---- 问答 / 内容详情 ---- */
.q-body, .a-body, .article-body {
    white-space: pre-wrap; font-size: 15px; color: var(--text);
}
.answer-item { border-top: 1px solid var(--border); padding: 18px 0; }
.answer-item.accepted { background: #f0fdf4; margin: 0 -24px; padding: 18px 24px; border-radius: 8px; }
.accepted-tag { color: var(--success); font-size: 13px; font-weight: 700; }
.analysis-box {
    background: #fffbeb; border: 1px solid #fde68a; border-radius: 8px;
    padding: 14px 18px; margin: 14px 0; white-space: pre-wrap;
}
.analysis-box .tag { color: var(--warning); font-weight: 700; margin-right: 6px; }

/* ---- 工具栏 / 搜索 ---- */
.toolbar { display: flex; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; align-items: center; }
.search-box { display: flex; flex: 1; max-width: 420px; }
.search-box .form-control { border-radius: 8px 0 0 8px; }
.search-box .btn { border-radius: 0 8px 8px 0; background: var(--primary); color: #fff; }
.chip-row { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
    padding: 4px 14px; border-radius: 999px; font-size: 13px;
    background: var(--card); border: 1px solid var(--border); color: var(--text-muted);
}
.chip.active { background: var(--primary); border-color: var(--primary); color: #fff; }

/* ---- 认证页 ---- */
.auth-wrap { max-width: 420px; margin: 30px auto; }
.auth-wrap .card { padding: 30px 32px; }
.auth-wrap h2 { margin: 0 0 20px; text-align: center; }
.auth-foot { text-align: center; margin-top: 14px; font-size: 14px; }

/* ---- 页脚 ---- */
.site-footer {
    border-top: 1px solid var(--border); background: var(--card);
    padding: 18px 0; color: var(--text-muted); font-size: 13px; text-align: center;
}
.site-footer .beian { margin: 4px 0 0; font-size: 12px; }
.site-footer .beian a { color: var(--text-muted); }
.site-footer .beian a:hover { color: var(--primary); }

@media (max-width: 720px) {
    .header-inner { gap: 12px; height: auto; flex-wrap: wrap; padding: 10px 0; }
    .main-nav { order: 3; width: 100%; }
    .home-grid { grid-template-columns: 1fr; }
    .hero { padding: 28px 22px; }
}