/* =====================================================
 * tool-intro.css
 * 工具页下方介绍区公共样式：特性卡片、截图对比、了解更多
 * 适用于 image/convert、image/compress、image/backdrop、image/format 等工具页
 * ===================================================== */

/* ---- 工具主卡片通用样式 ---- */
.upload-area {
    border: 1px dashed #cbd5f5;
    border-radius: 10px;
    padding: 24px 16px;
    text-align: center;
    background: #f8fafc;
    margin: 10px 0 18px;
    cursor: pointer;
    transition: border-color .2s, background .2s;
}
.upload-area:hover { border-color: #6366f1; background: #f0f4ff; }
.upload-area .upload-content i { color: #4f46e5; }
.upload-area h4 { font-size: 15px; margin-top: 10px; margin-bottom: 4px; }
.upload-area p  { font-size: 13px; margin-bottom: 0; }

/* ---- 文件列表 ---- */
.img-convert-list-wrap {
    margin: 16px 0;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    background: #fafafa;
    overflow: hidden;
}
.img-convert-list-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    background: #fff;
    border-bottom: 1px solid #e2e8f0;
    font-size: 13px;
    color: #475569;
}
.img-convert-list {
    list-style: none;
    margin: 0;
    padding: 8px;
    max-height: 200px;
    overflow-y: auto;
}
.img-convert-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 10px;
    margin-bottom: 6px;
    background: #fff;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
    font-size: 13px;
}
.img-convert-list .name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-right: 8px;
}

/* ---- 特性卡片区块（ic-feat-*）---- */
.ic-feat-section { margin-top: 40px; margin-bottom: 10px; }
.ic-feat-row { margin-left: -10px; margin-right: -10px; }
.ic-feat-row > [class*="col-"] { padding-left: 10px; padding-right: 10px; }

.ic-feat-card {
    background: #fff;
    border: 1px solid #edf2f7;
    border-radius: 12px;
    padding: 22px 18px 18px;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: box-shadow .2s, transform .2s;
}
.ic-feat-card:hover {
    box-shadow: 0 6px 24px rgba(0, 0, 0, .08);
    transform: translateY(-2px);
}
.ic-feat-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: #fff;
    margin-bottom: 14px;
}
.ic-icon-blue   { background: linear-gradient(135deg, #4f8ef7, #2563eb); }
.ic-icon-green  { background: linear-gradient(135deg, #34d399, #059669); }
.ic-icon-purple { background: linear-gradient(135deg, #a78bfa, #7c3aed); }
.ic-icon-orange { background: linear-gradient(135deg, #fbbf24, #d97706); }
.ic-icon-teal   { background: linear-gradient(135deg, #22d3ee, #0891b2); }
.ic-feat-title  { font-size: 15px; font-weight: 600; color: #1e293b; margin: 0 0 6px; }
.ic-feat-desc   { font-size: 13px; color: #64748b; margin: 0; line-height: 1.55; }

/* ---- 截图对比区块（tinyshow）---- */
.tinyshow { padding: 30px 0 10px; }
.tinyshow .col-lg-12 h1 { font-size: 1.5rem; font-weight: 700; color: #0f172a; margin-bottom: 6px; }
.tinyshow .col-lg-12 p  { font-size: 14px; color: #64748b; }
.tinyshow .about_img img,
.tinyshow .about_content img {
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(15, 23, 42, .08);
}

/* ---- "了解更多"标题（infomore）---- */
.infomore { padding: 20px 0 10px; }
.infomore h1 { font-size: 1.4rem; font-weight: 700; color: #0f172a; }

/* ---- PDF 工具页介绍区通用 tips 列表 ---- */
.sp-landing__tips {
    list-style: none;
    padding: 0;
    margin: 1.5rem auto 0;
    max-width: 720px;
}
.sp-landing__tips li {
    position: relative;
    padding-left: 1.25rem;
    margin-bottom: 0.5rem;
    font-size: 13px;
    color: #64748b;
    line-height: 1.55;
}
.sp-landing__tips li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: linear-gradient(145deg, #6366f1, #0ea5e9);
}