/* aiweb2 首页 — 清爽白色系 */
.hero {
    position: relative;
    padding: clamp(3rem, 10vw, 5rem) 0 3.5rem;
    overflow: hidden;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    border-bottom: 1px solid var(--line);
}

.hero__bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 70% 55% at 15% 20%, rgba(37, 99, 235, 0.08), transparent 55%),
        radial-gradient(ellipse 50% 45% at 90% 80%, rgba(14, 165, 233, 0.06), transparent 50%);
    pointer-events: none;
}

.hero__inner { position: relative; z-index: 1; }
.hero__slide { position: relative; }

.hero__image {
    width: 100%;
    max-height: 320px;
    object-fit: cover;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.hero__kicker {
    margin: 0 0 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--accent);
}

.hero__title {
    margin: 0 0 1rem;
    font-size: clamp(2rem, 5vw, 2.75rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.15;
    max-width: 22ch;
    color: var(--text);
}

.hero__lead {
    margin: 0 0 1.75rem;
    max-width: 36rem;
    font-size: 1.0625rem;
    color: var(--text-muted);
    line-height: 1.65;
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }

.plans-section { padding: 1rem 0 3rem; }

.cta-band {
    padding: 3.5rem 0;
    background: linear-gradient(135deg, #eff6ff 0%, #f0f9ff 50%, #f8fafc 100%);
    border-block: 1px solid var(--line);
}

.cta-band__inner { text-align: center; }

.cta-band__title {
    margin: 0 0 0.75rem;
    font-size: clamp(1.5rem, 3vw, 2rem);
    color: var(--text);
    font-weight: 700;
}

.cta-band__text { margin: 0 auto 1.5rem; max-width: 36rem; color: var(--text-muted); }
.news-section { padding: 0 0 4rem; }

@media (max-width: 767px) {
    .hero { padding: 2.5rem 0 2.5rem; }
    .hero__title { max-width: none; font-size: clamp(1.75rem, 7vw, 2.25rem); }
    .hero__lead { font-size: 1rem; }
    .hero__actions { flex-direction: column; align-items: stretch; }
    .hero__actions .btn { width: 100%; justify-content: center; }
    .hero__image { max-height: 200px; }
    .cta-band { padding: 2.5rem 0; }
    .plans-section { padding: 0.5rem 0 2rem; }
}