/* ============================ 想法分享 ============================ */

.page-hero {
    padding: calc(var(--nav-h) + 80px) 0 40px;
    text-align: center;
}
.page-hero .eyebrow { text-align: center; }
.page-hero h1 {
    font-size: clamp(2.4rem, 5vw, 3.6rem);
    margin-bottom: 16px;
}
.page-hero .lead {
    color: var(--text-dim);
    font-size: 1.1rem;
    max-width: 640px;
    margin: 0 auto;
}

.idea-grid {
    columns: 3;
    column-gap: 22px;
}

.idea-card {
    break-inside: avoid;
    margin-bottom: 22px;
    padding: 28px;
    position: relative;
}

.idea-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--accent-grad);
    border-radius: 3px 0 0 3px;
    opacity: 0.5;
    transition: opacity 0.3s ease;
}

.idea-card:hover::before {
    opacity: 1;
}

.idea-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 14px;
}

.idea-head h3 {
    font-size: 1.18rem;
    line-height: 1.3;
}

.idea-date {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-mute);
    flex-shrink: 0;
    padding-top: 4px;
}

.idea-card p {
    color: var(--text-dim);
    font-size: 0.92rem;
    line-height: 1.75;
    margin-bottom: 16px;
}

.idea-tags {
    display: flex;
    flex-wrap: wrap;
}

/* 实现流程 */
.process-block {
    margin-top: 70px;
}

.process-block h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 12px;
}

.process-block .section-subtitle {
    text-align: center;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    position: relative;
}

.step {
    text-align: center;
    padding: 28px 20px;
    position: relative;
}

.step-num {
    width: 52px;
    height: 52px;
    margin: 0 auto 18px;
    border-radius: 50%;
    background: var(--card);
    border: 1px solid var(--accent);
    color: var(--accent-2);
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 20px rgba(255, 107, 53, 0.2);
    transition: transform 0.3s ease;
}

.step:hover .step-num {
    transform: scale(1.1);
}

.step h3 {
    font-size: 1.05rem;
    margin-bottom: 8px;
}

.step p {
    color: var(--text-dim);
    font-size: 0.86rem;
    line-height: 1.6;
}

/* CTA */
.idea-cta {
    margin-top: 70px;
    padding: 50px 40px;
    text-align: center;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.08), rgba(247, 201, 72, 0.04));
    border-color: var(--border-strong);
}

.idea-cta h2 {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    margin-bottom: 14px;
}

.idea-cta p {
    color: var(--text-dim);
    margin-bottom: 28px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}

@media screen and (max-width: 860px) {
    .idea-grid { columns: 1; }
    .steps-grid { grid-template-columns: repeat(2, 1fr); }
}

@media screen and (max-width: 480px) {
    .steps-grid { grid-template-columns: 1fr; }
}