/* 加密页：与 pdftoword 共用主卡片，此处仅介绍区 + 提示 */
.sp-setpwd-options label { font-weight: 600; color: #333; }
.sp-tip {
    margin: 10px 0 0;
    padding: 8px 12px;
    background: #eff6ff;
    border-left: 3px solid #3498db;
    border-radius: 4px;
    color: #1e40af;
    font-size: 13px;
}
.sp-landing {
    background: linear-gradient(180deg, #f8fafc 0%, #eef2f7 50%, #f8fafc 100%);
    margin: 2rem -15px 0;
    padding: 2.5rem 15px 3rem;
}
@media (min-width: 1200px) {
    .sp-landing { margin-left: calc(50% - 50vw); margin-right: calc(50% - 50vw); padding-left: calc(50vw - 50%); padding-right: calc(50vw - 50%); }
}
.sp-landing__inner { max-width: 960px; margin: 0 auto; }
.sp-sec-head { text-align: center; margin-bottom: 1.5rem; }
.sp-sec-head__badge {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #6366f1;
    background: rgba(99, 102, 241, 0.12);
    padding: 5px 12px;
    border-radius: 999px;
    margin-bottom: 8px;
}
.sp-sec-head__title { font-size: 1.4rem; font-weight: 800; color: #0f172a; margin: 0 0 6px; }
.sp-sec-head__sub { font-size: 14px; color: #64748b; margin: 0; }
.sp-cards { margin: 0 -8px; }
.sp-cards > [class*="col-"] { padding: 0 8px; margin-bottom: 12px; }
.sp-card {
    background: #fff;
    border-radius: 14px;
    padding: 1.25rem 1rem;
    text-align: center;
    height: 100%;
    border: 1px solid rgba(15, 23, 42, 0.06);
    box-shadow: 0 2px 16px rgba(15, 23, 42, 0.05);
}
.sp-card__icon {
    width: 44px; height: 44px; margin: 0 auto 10px; border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 18px; color: #fff;
}
.sp-card__icon--1 { background: linear-gradient(145deg, #6366f1, #4f46e5); }
.sp-card__icon--2 { background: linear-gradient(145deg, #0ea5e9, #0284c7); }
.sp-card__icon--3 { background: linear-gradient(145deg, #f59e0b, #d97706); }
.sp-card__title { font-size: 0.95rem; font-weight: 700; color: #0f172a; margin: 0 0 6px; }
.sp-card__text { font-size: 13px; color: #64748b; margin: 0; line-height: 1.5; }