/* ========== 帮助中心 Hero ========== */
.hlp-hero {
    background: radial-gradient(circle at 78% 28%, rgba(37,182,210,0.38) 0%, transparent 46%),
                radial-gradient(circle at 18% 82%, rgba(255,255,255,0.10) 0%, transparent 42%),
                linear-gradient(135deg, #173A66 0%, #1F4E8C 48%, #1E86A8 100%);
    padding: 90px 0 100px;
    position: relative;
    overflow: hidden;
}
.hlp-hero::before {
    content: "";
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-image:
        linear-gradient(rgba(37,182,210,0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37,182,210,0.08) 1px, transparent 1px);
    background-size: 60px 60px;
}
.hlp-hero-inner {
    position: relative;
    z-index: 2;
    color: #fff;
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
}
.hlp-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(255,255,255,0.12);
    border-radius: 20px;
    font-size: 13px;
    color: #D6E4F2;
    margin-bottom: 24px;
    backdrop-filter: blur(4px);
}
.hlp-hero-badge .dot {
    width: 8px; height: 8px;
    background: #FFB020;
    border-radius: 50%;
}
.hlp-hero h1 {
    font-size: 40px;
    font-weight: bold;
    line-height: 1.3;
    margin-bottom: 20px;
}
.hlp-hero h1 span {
    color: #7FE0F0;
}
.hlp-hero-sub {
    font-size: 16px;
    color: #CFE4F5;
    line-height: 1.8;
    margin: 0 auto;
}

/* ========== 快捷入口 ========== */
.hlp-quick { background: #F4F8FB; }
.hlp-quick-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.hlp-quick-card {
    background: #FFFFFF;
    border: 1px solid #E4EDF5;
    border-radius: 6px;
    padding: 32px 24px;
    text-align: center;
    transition: all 0.3s;
    display: block;
    text-decoration: none;
}
.hlp-quick-card:hover {
    box-shadow: 0 8px 30px rgba(31,78,140,0.12);
    transform: translateY(-4px);
    border-color: #BFD6EE;
}
.hlp-quick-icon {
    width: 64px; height: 64px;
    background: linear-gradient(135deg, rgba(37,182,210,0.14), rgba(31,78,140,0.08));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #1F4E8C;
    margin: 0 auto 20px;
}
.hlp-quick-card h3 {
    font-size: 17px;
    color: #1A2B4A;
    margin-bottom: 10px;
    font-weight: 600;
}
.hlp-quick-card p {
    font-size: 14px;
    color: #5C6E86;
    line-height: 1.7;
    margin: 0;
}

/* ========== 常见问题 ========== */
.hlp-faq { background: #FFFFFF; }
.hlp-faq-list { max-width: 900px; margin: 0 auto; }
.hlp-faq-category {
    margin-bottom: 48px;
}
.hlp-faq-cat-title {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid #E4EDF5;
}
.hlp-faq-num {
    font-size: 28px;
    font-weight: bold;
    color: #25B6D2;
    line-height: 1;
}
.hlp-faq-cat-title h3 {
    font-size: 22px;
    color: #1A2B4A;
    font-weight: 600;
    margin: 0;
}
.hlp-faq-item {
    background: #F4F8FB;
    border: 1px solid #E4EDF5;
    border-radius: 6px;
    padding: 24px;
    margin-bottom: 16px;
    transition: all 0.3s;
}
.hlp-faq-item:hover {
    border-color: #BFD6EE;
    box-shadow: 0 4px 16px rgba(31,78,140,0.08);
}
.hlp-faq-q {
    font-size: 16px;
    color: #1A2B4A;
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.5;
}
.hlp-faq-a {
    font-size: 14px;
    color: #5C6E86;
    line-height: 1.8;
    margin: 0;
    padding-left: 18px;
    position: relative;
}
.hlp-faq-a::before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    background: #25B6D2;
    border-radius: 50%;
}

/* ========== CTA ========== */
.hlp-cta { background: linear-gradient(135deg, #173A66 0%, #1F4E8C 50%, #1E86A8 100%); padding: 70px 0; }
.hlp-cta-inner { text-align: center; color: #fff; }
.hlp-cta-inner h2 { font-size: 30px; font-weight: bold; margin-bottom: 16px; }
.hlp-cta-inner p { font-size: 16px; color: rgba(255,255,255,0.75); margin-bottom: 30px; }
.hlp-cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hlp-cta-btn-primary {
    display: inline-block;
    padding: 14px 38px;
    background: #FFB020;
    color: #1A2B4A;
    font-size: 15px;
    font-weight: 600;
    border-radius: 4px;
    transition: all 0.3s;
}
.hlp-cta-btn-primary:hover { background: #E89A0F; }
.hlp-cta-btn-secondary {
    display: inline-block;
    padding: 14px 38px;
    background: transparent;
    color: #fff;
    font-size: 15px;
    border: 2px solid rgba(255,255,255,0.4);
    border-radius: 4px;
    transition: all 0.3s;
}
.hlp-cta-btn-secondary:hover { border-color: #25B6D2; color: #7FE0F0; }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .hlp-quick-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .hlp-hero h1 { font-size: 28px; }
    .hlp-hero { padding: 60px 0 70px; }
    .hlp-quick-grid { grid-template-columns: 1fr; }
    .hlp-faq-cat-title h3 { font-size: 20px; }
    .hlp-faq-q { font-size: 15px; }
    .hlp-cta-inner h2 { font-size: 24px; }
}