/* =============================================
   首页样式
   ============================================= */

/* ===== Hero ===== */
.idx-hero {
    background: linear-gradient(135deg, #d6e8f8 0%, #e2eef9 40%, #dde6f5 100%);
    padding: 72px 0 60px;
    overflow: hidden;
}

.idx-hero-inner {
    display: flex;
    align-items: center;
    gap: 40px;
}

.idx-hero-left {
    flex: 1;
    min-width: 0;
}

.idx-hero-right {
    flex: 0 0 480px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.idx-hero-img {
    width: 100%;
    max-width: 480px;
    height: auto;
    display: block;
}

.idx-hero-title {
    font-size: 44px;
    font-weight: 700;
    color: #1e293b;
    margin: 0 0 14px;
    line-height: 1.2;
    letter-spacing: -0.5px;
}

.idx-hero-sub {
    font-size: 22px;
    font-weight: 500;
    color: #475569;
    margin: 0 0 36px;
    line-height: 1.5;
}

.idx-hero-btns {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.idx-btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: #e05b3a;
    color: #fff;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: background .15s, transform .15s, box-shadow .15s;
    box-shadow: 0 4px 14px rgba(224,91,58,.35);
}

.idx-btn-primary:hover {
    background: #c94e30;
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(224,91,58,.45);
}

.idx-btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: rgba(255,255,255,.7);
    color: #334155;
    border: 1.5px solid rgba(148,163,184,.5);
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: background .15s, border-color .15s;
    backdrop-filter: blur(4px);
}

.idx-btn-ghost:hover {
    background: rgba(255,255,255,.9);
    border-color: #94a3b8;
    color: #1e293b;
}

/* ===== Section 通用 ===== */
.idx-section {
    padding: 72px 0 60px;
}

.idx-section-hd {
    text-align: center;
    margin-bottom: 52px;
}

.idx-section-title {
    font-size: 26px;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 10px;
}

.idx-section-title span {
    color: var(--text-muted);
    font-weight: 300;
    margin: 0 6px;
}

.idx-section-sub {
    font-size: 15px;
    color: var(--text-muted);
    margin: 0;
}

/* ===== 功能卡片网格 ===== */
.idx-features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.idx-feature-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 28px 24px 24px;
    transition: transform .2s, box-shadow .2s, border-color .2s;
}

.idx-feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 36px rgba(0,0,0,.09);
    border-color: #c7d2fe;
}

.idx-feature-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 18px;
}

.idx-feature-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    margin: 0 0 10px;
}

.idx-feature-desc {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.7;
    margin: 0 0 20px;
}

.idx-feature-link {
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: gap .15s;
}

.idx-feature-link:hover { gap: 8px; color: var(--primary-hover); }
.idx-feature-link i { font-size: 11px; }

/* ===== CTA 区 ===== */
.idx-cta {
    margin-bottom: 72px;
    border-radius: 16px;
    background: linear-gradient(135deg, #eff6ff 0%, #e0e7ff 100%);
    border: 1px solid #c7d2fe;
    padding: 52px 40px;
    text-align: center;
}

.idx-cta-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 10px;
}

.idx-cta-sub {
    font-size: 14px;
    color: var(--text-muted);
    margin: 0 0 28px;
}

.idx-cta-btns {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.idx-btn-cta-ghost {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 13px 24px;
    background: #fff;
    color: var(--text);
    border: 1.5px solid var(--border);
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: border-color .15s, color .15s;
}

.idx-btn-cta-ghost:hover { border-color: var(--primary); color: var(--primary); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .idx-hero-right { flex: 0 0 380px; }
    .idx-hero-img { max-width: 380px; }
}

@media (max-width: 900px) {
    .idx-features-grid { grid-template-columns: repeat(2, 1fr); }
    .idx-hero-right { flex: 0 0 300px; }
    .idx-hero-img { max-width: 300px; }
    .idx-hero-title { font-size: 34px; }
    .idx-hero-sub { font-size: 18px; }
}

@media (max-width: 768px) {
    .idx-hero { margin: 0 -16px; padding: 48px 16px 48px; }
    .idx-hero-inner { flex-direction: column; gap: 0; }
    .idx-hero-left { text-align: center; }
    .idx-hero-right { display: none; }
    .idx-hero-btns { justify-content: center; }
    .idx-hero-title { font-size: 30px; }
    .idx-hero-sub { font-size: 16px; margin-bottom: 28px; }

    .idx-section { padding: 48px 0 40px; }
    .idx-section-title { font-size: 20px; }
    .idx-cta { padding: 36px 20px; }
    .idx-cta-title { font-size: 18px; }
}

@media (max-width: 540px) {
    .idx-features-grid { grid-template-columns: 1fr; }
    .idx-btn-primary, .idx-btn-ghost { justify-content: center; }
}