/* ==========================================================================
   企业库 / 关联企业 · 公共样式
   适用页面：companies.php（企业库列表 / 标签页）
             company.php（企业详情）
             claim.php（我要认领）
   ========================================================================== */

:root {
    --co-primary: #1a7cff;
    --co-primary-dark: #0f63d6;
    --co-text: #222;
    --co-text2: #666;
    --co-muted: #999;
    --co-border: #e8e8e8;
    --co-bg: #f5f6f8;
    --co-card: #fff;
    --co-radius: 14px;
    --co-shadow: 0 1px 4px rgba(0, 0, 0, .06);
    --co-shadow-hover: 0 8px 26px rgba(15, 60, 130, .10);
}

/* ----- 基础布局 ----- */
.co-page {
    background: var(--co-bg);
    min-height: 100vh;
    padding: 24px 16px 64px;
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
    color: var(--co-text);
    -webkit-font-smoothing: antialiased;
}
.co-container {
    max-width: 1200px;
    margin: 0 auto;
}
.co-breadcrumb {
    font-size: 13px;
    color: var(--co-muted);
    margin: 0 0 16px;
    line-height: 1.7;
}
.co-breadcrumb a { color: var(--co-primary); text-decoration: none; }
.co-breadcrumb a:hover { text-decoration: underline; }
.co-breadcrumb span { color: #c4c4c4; margin: 0 6px; }

/* ----- 列表页顶部 ----- */
.co-hero {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #1a7cff 0%, #4f9dff 60%, #6fb4ff 100%);
    color: #fff;
    border-radius: 18px;
    padding: 30px 32px 26px;
    margin-bottom: 20px;
    box-shadow: 0 10px 30px rgba(26, 124, 255, .20);
}
.co-hero::after {
    content: "";
    position: absolute;
    right: -60px;
    top: -70px;
    width: 240px;
    height: 240px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .12);
}
.co-hero h1 { font-size: 26px; font-weight: 700; margin: 0 0 8px; letter-spacing: .5px; }
.co-hero p { margin: 0; font-size: 14px; line-height: 1.7; opacity: .92; }

.co-searchbar {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    position: relative;
    z-index: 1;
}
.co-searchbar input {
    flex: 1;
    min-width: 0;
    padding: 13px 18px;
    border: 0;
    border-radius: 10px;
    font-size: 15px;
    color: var(--co-text);
    outline: none;
    box-shadow: 0 4px 14px rgba(0, 0, 0, .08);
}
.co-searchbar button {
    padding: 0 28px;
    border: 0;
    border-radius: 10px;
    background: #fff;
    color: var(--co-primary);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
    transition: all .2s;
}
.co-searchbar button:hover { background: #eef5ff; }

/* ----- 行业标签云 ----- */
.co-tagbar {
    background: var(--co-card);
    border-radius: var(--co-radius);
    padding: 16px 20px;
    margin-bottom: 20px;
    box-shadow: var(--co-shadow);
}
.co-tagbar-title {
    font-size: 13px;
    color: var(--co-muted);
    margin: 0 0 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.co-tagcloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.co-tagcloud a {
    display: inline-block;
    padding: 5px 13px;
    border-radius: 20px;
    background: #f2f5f9;
    color: #555;
    font-size: 13px;
    text-decoration: none;
    line-height: 1.6;
    transition: all .2s;
}
.co-tagcloud a:hover, .co-tagcloud a.active {
    background: var(--co-primary);
    color: #fff;
}
.co-tagcloud .co-tagcount { opacity: .6; font-size: 11px; margin-left: 4px; }
.co-tagcloud a.active .co-tagcount { opacity: .8; }

/* ----- 列表网格 ----- */
.co-list-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    margin: 0 2px 14px;
    font-size: 13px;
    color: var(--co-muted);
}
.co-list-meta strong { color: var(--co-primary); }

.co-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}
.co-card {
    display: flex;
    flex-direction: column;
    background: var(--co-card);
    border-radius: var(--co-radius);
    padding: 20px;
    box-shadow: var(--co-shadow);
    border: 1px solid transparent;
    transition: box-shadow .25s, transform .2s, border-color .25s;
}
.co-card:hover {
    box-shadow: var(--co-shadow-hover);
    border-color: #dbe8ff;
    transform: translateY(-2px);
}
.co-card-head {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    min-width: 0;
}
.co-card-info { min-width: 0; flex: 1; }
.co-card-name {
    display: inline-block;
    font-size: 16px;
    font-weight: 700;
    color: var(--co-text);
    text-decoration: none;
    line-height: 1.45;
    word-break: break-all;
}
.co-card-name:hover { color: var(--co-primary); }
.co-card-full {
    margin-top: 3px;
    font-size: 12px;
    color: var(--co-muted);
    line-height: 1.5;
    word-break: break-all;
}
.co-card-intro {
    margin: 12px 0 0;
    font-size: 13px;
    line-height: 1.65;
    color: var(--co-text2);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 42px;
}
.co-card-foot {
    margin-top: auto;
    padding-top: 14px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
}
.co-card-claim {
    margin-left: auto;
    font-size: 11px;
    color: var(--co-muted);
}

/* ----- logo ----- */
.co-logo {
    display: block;
    width: 56px;
    height: 56px;
    flex: none;
    border-radius: 10px;
    object-fit: cover;
    background: #f5f6f8;
    border: 1px solid #f0f0f0;
}
.co-logo--sm { width: 44px; height: 44px; border-radius: 8px; }
.co-logo--md { width: 72px; height: 72px; }
.co-logo--lg { width: 96px; height: 96px; border-radius: 12px; }
.co-logo--xl { width: 120px; height: 120px; border-radius: 14px; }
.co-logo--letter {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a7cff, #5aa2ff);
    color: #fff;
    font-weight: 700;
    font-size: 24px;
    border: 0;
}
.co-logo--sm.co-logo--letter { font-size: 18px; }
.co-logo--lg.co-logo--letter { font-size: 34px; }
.co-logo--xl.co-logo--letter { font-size: 42px; }

/* ----- 标签 / 徽标 ----- */
.co-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 4px;
    background: #f0f5ff;
    color: var(--co-primary);
    font-size: 12px;
    line-height: 1.6;
    text-decoration: none;
    transition: all .2s;
}
.co-tag:hover { background: var(--co-primary); color: #fff; }
.co-tags { display: flex; flex-wrap: wrap; gap: 8px; }

.co-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    line-height: 1.6;
    white-space: nowrap;
}
.co-badge--is-claimed { background: #e8f7ee; color: #1a8f4c; }
.co-badge--is-unclaimed { background: #fff3e0; color: #b26a00; }

/* ----- 按钮 ----- */
.co-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 22px;
    border-radius: 10px;
    border: 1px solid transparent;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.5;
    text-decoration: none;
    cursor: pointer;
    transition: all .2s;
    font-family: inherit;
    -webkit-tap-highlight-color: transparent;
}
.co-btn--primary {
    background: var(--co-primary);
    color: #fff;
    box-shadow: 0 4px 12px rgba(26, 124, 255, .24);
}
.co-btn--primary:hover { background: var(--co-primary-dark); color: #fff; }
.co-btn--ghost {
    background: #fff;
    color: #333;
    border-color: #dbe3ee;
}
.co-btn--ghost:hover { border-color: var(--co-primary); color: var(--co-primary); }
.co-btn--success { background: #10b981; color: #fff; }
.co-btn--success:hover { background: #059669; color: #fff; }
.co-btn--disabled {
    background: #f1f5f9;
    color: #94a3b8;
    border-color: #e2e8f0;
    cursor: default;
    box-shadow: none;
}
.co-btn--lg { padding: 13px 30px; font-size: 15px; }
.co-btn--sm { padding: 6px 14px; font-size: 13px; border-radius: 8px; }
.co-btn--block { display: flex; width: 100%; }

/* ==========================================================================
   企业详情页
   ========================================================================== */
.co-detail-head {
    display: flex;
    align-items: flex-start;
    gap: 26px;
    background: var(--co-card);
    border-radius: 18px;
    padding: 30px 32px;
    box-shadow: var(--co-shadow);
}
.co-detail-main { flex: 1; min-width: 0; }
.co-detail-name {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin: 0;
    font-size: 27px;
    font-weight: 700;
    line-height: 1.35;
    color: var(--co-text);
    word-break: break-all;
}
.co-detail-full {
    margin: 8px 0 0;
    font-size: 14px;
    color: var(--co-muted);
    line-height: 1.7;
    word-break: break-all;
}
.co-detail-intro {
    margin: 16px 0 0;
    padding: 12px 16px;
    border-left: 3px solid var(--co-primary);
    background: #f7fbff;
    border-radius: 0 8px 8px 0;
    font-size: 15px;
    line-height: 1.8;
    color: #4a5a70;
}
.co-detail-tags { margin-top: 16px; }
.co-detail-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

/* 内容区块 */
.co-section {
    background: var(--co-card);
    border-radius: var(--co-radius);
    padding: 24px 28px;
    margin-top: 20px;
    box-shadow: var(--co-shadow);
}
.co-section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
}
.co-section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0;
    font-size: 19px;
    font-weight: 700;
    color: var(--co-text);
}
.co-section-title::before {
    content: "";
    width: 4px;
    height: 18px;
    border-radius: 2px;
    background: var(--co-primary);
}
.co-section-sub {
    font-size: 13px;
    color: var(--co-muted);
    margin: -6px 0 16px;
}

/* 详情介绍正文 */
.co-desc {
    font-size: 15px;
    line-height: 1.95;
    color: #333;
    word-wrap: break-word;
}
.co-desc p { margin: 0 0 14px; }
.co-desc p:last-child { margin-bottom: 0; }
.co-desc--empty { color: var(--co-muted); font-size: 14px; }

/* 关联文章 */
.co-articles {
    list-style: none;
    margin: 0;
    padding: 0;
}
.co-article {
    display: flex;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid #f2f2f2;
}
.co-article:first-child { padding-top: 0; }
.co-article:last-child { border-bottom: 0; padding-bottom: 0; }
.co-article-thumb {
    width: 132px;
    height: 88px;
    flex: none;
    border-radius: 8px;
    object-fit: cover;
    background: var(--co-bg);
}
.co-article-body { min-width: 0; display: flex; flex-direction: column; justify-content: center; }
.co-article-title {
    margin: 0 0 8px;
    font-size: 16px;
    font-weight: 600;
    line-height: 1.55;
    color: var(--co-text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.co-article-title a { color: inherit; text-decoration: none; }
.co-article-title a:hover { color: var(--co-primary); }
.co-article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 12px;
    color: var(--co-muted);
}
.co-article-meta .co-cat { color: var(--co-primary); }

/* 空状态 */
.co-empty {
    padding: 36px 20px;
    text-align: center;
    color: var(--co-muted);
    font-size: 14px;
    line-height: 1.8;
    background: #fafbfc;
    border: 1px dashed var(--co-border);
    border-radius: 10px;
}
.co-empty a { color: var(--co-primary); }

/* 提示条 */
.co-notice {
    padding: 14px 18px;
    border-radius: 10px;
    background: #fff8e6;
    border: 1px solid #ffe3a3;
    color: #8a5a00;
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 18px;
}
.co-notice a { color: #8a5a00; font-weight: 600; }

/* ----- 分页 ----- */
.co-pager {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 26px;
}
.co-page-btn,
.co-page-num {
    display: inline-block;
    padding: 8px 14px;
    border-radius: 8px;
    background: #fff;
    border: 1px solid var(--co-border);
    color: #555;
    font-size: 14px;
    text-decoration: none;
    line-height: 1.4;
    transition: all .2s;
}
.co-page-num:hover, .co-page-btn:hover {
    border-color: var(--co-primary);
    color: var(--co-primary);
}
.co-page-num.active {
    background: var(--co-primary);
    border-color: var(--co-primary);
    color: #fff;
}
.co-page-btn.disabled { color: #ccc; cursor: default; }
.co-page-gap { color: #bbb; }
.co-page-info { margin-left: 6px; font-size: 13px; color: var(--co-muted); }

/* ==========================================================================
   联系企业 · 二维码弹窗
   ========================================================================== */
.co-modal {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.co-modal[hidden] { display: none; }
.co-modal-mask {
    position: absolute;
    top: 0; right: 0; bottom: 0; left: 0;
    background: rgba(15, 23, 42, .62);
    -webkit-backdrop-filter: blur(2px);
    backdrop-filter: blur(2px);
}
.co-modal-box {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 360px;
    background: #fff;
    border-radius: 18px;
    padding: 28px 26px 24px;
    text-align: center;
    box-shadow: 0 22px 60px rgba(2, 6, 23, .35);
    animation: coModalIn .18s ease-out;
}
@keyframes coModalIn {
    from { transform: translateY(8px) scale(.98); opacity: .6; }
    to   { transform: translateY(0) scale(1); opacity: 1; }
}
.co-modal-close {
    position: absolute;
    top: 8px;
    right: 10px;
    width: 34px;
    height: 34px;
    border: 0;
    background: transparent;
    color: #999;
    font-size: 26px;
    line-height: 1;
    cursor: pointer;
    border-radius: 50%;
}
.co-modal-close:hover { background: #f2f5f9; color: #333; }
.co-modal-box h3 { margin: 0 0 6px; font-size: 19px; font-weight: 700; color: var(--co-text); }
.co-modal-sub { margin: 0; font-size: 13px; line-height: 1.7; color: var(--co-muted); }
.co-modal-box img.co-qr {
    display: block;
    width: 100%;
    max-width: 260px;
    height: auto;
    margin: 16px auto 10px;
    border-radius: 12px;
    border: 1px solid #f0f0f0;
}
.co-modal-tip { margin: 0; font-size: 12px; color: var(--co-muted); line-height: 1.7; }
.co-modal-tip b { color: var(--co-primary); }

/* ==========================================================================
   我要认领 · 表单
   ========================================================================== */
.co-form-wrap { max-width: 820px; margin: 0 auto; }
.co-form-card {
    background: var(--co-card);
    border-radius: 18px;
    padding: 30px 32px;
    box-shadow: var(--co-shadow);
}
.co-form-title { margin: 0 0 6px; font-size: 24px; font-weight: 700; }
.co-form-sub { margin: 0 0 22px; font-size: 14px; color: var(--co-text2); line-height: 1.8; }
.co-form-section { margin-bottom: 22px; }
.co-form-section-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--co-muted);
    letter-spacing: 1px;
    margin: 0 0 12px;
    text-transform: uppercase;
}
.co-field { margin-bottom: 18px; }
.co-field > label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #333;
    margin-bottom: 7px;
}
.co-field > label .req { color: #e5484d; }
.co-input,
.co-textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #dfe4ec;
    border-radius: 10px;
    font-size: 15px;
    font-family: inherit;
    color: var(--co-text);
    background: #fff;
    outline: none;
    transition: border-color .2s, box-shadow .2s;
    -webkit-appearance: none;
}
.co-input:focus,
.co-textarea:focus {
    border-color: var(--co-primary);
    box-shadow: 0 0 0 3px rgba(26, 124, 255, .12);
}
.co-textarea { min-height: 100px; resize: vertical; line-height: 1.7; }
.co-help { margin-top: 6px; font-size: 12px; color: var(--co-muted); line-height: 1.7; }
.co-row { display: flex; gap: 16px; flex-wrap: wrap; }
.co-row > .co-field { flex: 1 1 220px; min-width: 0; }

/* 企业搜索选择器 */
.co-picker { position: relative; }
.co-picker-selected {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border: 1px solid #cfe3ff;
    background: #f7fbff;
    border-radius: 10px;
    margin-bottom: 10px;
}
.co-picker-selected .co-picker-name { font-size: 15px; font-weight: 700; color: #234; }
.co-picker-selected .co-picker-sub { font-size: 12px; color: var(--co-muted); margin-top: 2px; }
.co-picker-clear {
    margin-left: auto;
    border: 0;
    background: #fff;
    color: #888;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 5px 10px;
    font-size: 12px;
    cursor: pointer;
    white-space: nowrap;
}
.co-picker-clear:hover { color: #e5484d; border-color: #f6c6c8; }
.co-suggest {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    margin-top: 6px;
    z-index: 60;
    max-height: 320px;
    overflow-y: auto;
    background: #fff;
    border: 1px solid #e6ecf5;
    border-radius: 12px;
    box-shadow: 0 14px 40px rgba(15, 60, 130, .16);
    padding: 6px;
}
.co-suggest[hidden] { display: none; }
.co-suggest-item {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 10px 12px;
    border: 0;
    background: transparent;
    border-radius: 8px;
    text-align: left;
    cursor: pointer;
    font-family: inherit;
}
.co-suggest-item:hover, .co-suggest-item.active { background: #f2f7ff; }
.co-suggest-item .co-suggest-info { min-width: 0; flex: 1; }
.co-suggest-item .co-suggest-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--co-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.co-suggest-item .co-suggest-full {
    font-size: 12px;
    color: var(--co-muted);
    margin-top: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.co-suggest-empty {
    padding: 16px;
    text-align: center;
    font-size: 13px;
    color: var(--co-muted);
    line-height: 1.8;
}
.co-suggest-loading { padding: 14px; text-align: center; font-size: 13px; color: var(--co-muted); }

.co-claim-success {
    text-align: center;
    padding: 46px 26px;
}
.co-claim-success .co-success-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 62px;
    height: 62px;
    border-radius: 50%;
    background: #e8f7ee;
    color: #10b981;
    font-size: 30px;
    margin-bottom: 16px;
}
.co-claim-success h2 { margin: 0 0 10px; font-size: 22px; font-weight: 700; }
.co-claim-success p { margin: 0 auto 8px; max-width: 520px; font-size: 14px; line-height: 1.9; color: var(--co-text2); }
.co-claim-success .co-claim-actions { margin-top: 22px; display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

/* 保证 hidden 属性始终生效（避免被 display:flex 等样式覆盖） */
.co-page [hidden],
.co-modal[hidden],
.co-suggest[hidden],
.co-picker-selected[hidden],
.co-picker[hidden],
[hidden].co-picker-selected { display: none !important; }

/* ----- 缺失 header.php 时的兜底头部 ----- */
.co-fallback-nav {
    background: #fff;
    border-bottom: 1px solid #eee;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    gap: 18px;
    font-size: 14px;
}
.co-fallback-nav a { color: #333; text-decoration: none; }
.co-fallback-nav a:hover { color: var(--co-primary); }
.co-fallback-nav .brand { font-weight: 700; font-size: 17px; color: var(--co-primary); }
.co-fallback-foot {
    margin-top: 30px;
    padding: 24px 20px 10px;
    text-align: center;
    font-size: 12px;
    color: #999;
    line-height: 1.9;
}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1024px) {
    .co-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .co-detail-head { padding: 24px; gap: 20px; }
    .co-detail-name { font-size: 23px; }
    .co-logo--xl { width: 96px; height: 96px; }
    .co-logo--xl.co-logo--letter { font-size: 34px; }
}

@media (max-width: 768px) {
    .co-page { padding: 16px 12px 46px; }
    .co-hero { padding: 22px 20px 20px; border-radius: 14px; }
    .co-hero h1 { font-size: 21px; }
    .co-hero p { font-size: 13px; }
    .co-searchbar { flex-direction: column; gap: 8px; }
    .co-searchbar input { padding: 12px 15px; }
    .co-searchbar button { padding: 12px 20px; }

    .co-grid { grid-template-columns: minmax(0, 1fr); gap: 12px; }
    .co-card { padding: 16px; }

    .co-detail-head {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 22px 18px;
        gap: 14px;
    }
    .co-detail-name { justify-content: center; font-size: 21px; }
    .co-detail-intro { text-align: left; font-size: 14px; }
    .co-detail-tags { justify-content: center; }
    .co-detail-actions { justify-content: center; width: 100%; }
    .co-detail-actions .co-btn { flex: 1 1 44%; }

    .co-section { padding: 18px 16px; border-radius: 12px; }
    .co-section-title { font-size: 17px; }
    .co-desc { font-size: 15px; }

    .co-article { gap: 12px; padding: 14px 0; }
    .co-article-thumb { width: 104px; height: 72px; }
    .co-article-title { font-size: 14px; margin-bottom: 6px; }

    .co-form-card { padding: 22px 18px; border-radius: 14px; }
    .co-form-title { font-size: 20px; }
    .co-row { gap: 0; }
    .co-row > .co-field { flex: 1 1 100%; }

    .co-modal-box { padding: 24px 18px 20px; }
    .co-page-btn, .co-page-num { padding: 7px 12px; font-size: 13px; }
}

/* 尊重系统「减少动态效果」设置 */
@media (prefers-reduced-motion: reduce) {
    .co-card, .co-modal-box, .co-btn { transition: none; animation: none; }
    .co-card:hover { transform: none; }
}

/* ==========================================================================
   企业详情 · 常见问题（SEO / AI 搜索）
   ========================================================================== */
.co-faq { display: flex; flex-direction: column; }
.co-faq-item { border-bottom: 1px solid #f2f2f2; }
.co-faq-item:last-child { border-bottom: 0; }
.co-faq-q {
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 15px 0;
    font-size: 15px;
    font-weight: 600;
    color: var(--co-text);
    list-style: none;
}
.co-faq-q::-webkit-details-marker { display: none; }
.co-faq-q::after {
    content: "+";
    flex: none;
    color: var(--co-primary);
    font-size: 20px;
    font-weight: 400;
    line-height: 1;
}
.co-faq-item[open] .co-faq-q::after { content: "−"; }
.co-faq-a {
    padding: 0 0 16px;
    font-size: 14px;
    line-height: 1.9;
    color: var(--co-text2);
}
.co-faq-kws { margin-top: 4px; }
.co-faq-kws .co-tag { cursor: pointer; text-decoration: none; }

@media (max-width: 640px) {
    .co-faq-q { font-size: 14px; }
    .co-faq-a { font-size: 13px; line-height: 1.8; }
}