/* ===== 口播智能体 · 落地页（landing.php 专用）===== */
body {
    background: #F0F9FF;
    padding-bottom: 0;
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: #0C4A6E;
}

.footer {
    position: static;
    background: #ffffff;
    border-top: 1px solid #E0F2FE;
    color: #64748B;
}

.landing {
    padding: 8px 0 24px;
}

/* ---------- Hero ---------- */
.landing-hero {
    margin-top: 28px;
    padding: 72px 28px 60px;
    text-align: center;
    background:
        radial-gradient(900px 320px at 50% -80px, rgba(56, 189, 248, 0.22), transparent 65%),
        linear-gradient(180deg, #FFFFFF 0%, #F0F9FF 100%);
    border: 1px solid #E0F2FE;
    border-radius: 24px;
    box-shadow: 0 10px 32px rgba(2, 132, 199, 0.08);
}

.landing-hero h1 {
    max-width: 760px;
    margin: 0 auto 18px;
    font-size: 42px;
    line-height: 1.25;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: #0C4A6E;
}

.landing-lead {
    max-width: 660px;
    margin: 0 auto 30px;
    font-size: 17px;
    line-height: 1.8;
    color: #475569;
}

.landing-hero-action {
    margin: 0 0 18px;
}

.landing-updated {
    margin: 0;
    font-size: 13px;
    color: #64748B;
}

/* ---------- CTA ---------- */
.landing-cta {
    display: inline-block;
    padding: 15px 40px;
    border-radius: 999px;
    background: #C2410C;
    color: #ffffff;
    font-size: 17px;
    font-weight: 600;
    line-height: 1.4;
    box-shadow: 0 10px 26px rgba(194, 65, 12, 0.3);
    transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    text-decoration: none;
}

.landing-cta:hover,
.landing-cta:focus {
    background: #9A3412;
    color: #ffffff;
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: 0 14px 30px rgba(194, 65, 12, 0.34);
}

.landing-cta:focus-visible {
    outline: 3px solid rgba(2, 132, 199, 0.45);
    outline-offset: 3px;
}

/* ---------- Sections ---------- */
.landing-section {
    max-width: 980px;
    margin: 64px auto 0;
}

.landing-section h2 {
    margin: 0 0 14px;
    font-size: 27px;
    font-weight: 700;
    line-height: 1.35;
    color: #0C4A6E;
    text-align: center;
}

.landing-section-lead {
    max-width: 680px;
    margin: 0 auto;
    font-size: 15px;
    line-height: 1.85;
    color: #475569;
    text-align: center;
}

/* ---------- Stats ---------- */
.landing-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 32px;
}

.landing-stat {
    padding: 22px 16px;
    background: #ffffff;
    border: 1px solid #E0F2FE;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 16px rgba(2, 132, 199, 0.06);
}

.landing-stat strong {
    display: block;
    margin-bottom: 8px;
    font-size: 19px;
    font-weight: 700;
    color: #0369A1;
}

.landing-stat span {
    font-size: 13px;
    line-height: 1.7;
    color: #475569;
}

/* ---------- Steps ---------- */
.landing-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 32px;
}

.landing-step {
    padding: 30px 26px 26px;
    background: #ffffff;
    border: 1px solid #E0F2FE;
    border-radius: 16px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.landing-step:hover {
    border-color: #7DD3FC;
    box-shadow: 0 12px 28px rgba(2, 132, 199, 0.1);
    transform: translateY(-4px);
}

.landing-step-num {
    width: 34px;
    height: 34px;
    margin-bottom: 18px;
    border-radius: 50%;
    background: #0369A1;
    color: #ffffff;
    font-size: 16px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

.landing-step h3 {
    margin: 0 0 8px;
    font-size: 17px;
    font-weight: 600;
    color: #0C4A6E;
}

.landing-step p {
    margin: 0;
    font-size: 14px;
    line-height: 1.75;
    color: #475569;
}

/* ---------- Compare table ---------- */
.landing-table-wrap {
    margin-top: 32px;
    overflow-x: auto;
    background: #ffffff;
    border: 1px solid #E0F2FE;
    border-radius: 16px;
    box-shadow: 0 4px 16px rgba(2, 132, 199, 0.06);
}

.landing-table {
    width: 100%;
    margin: 0;
    border-collapse: collapse;
    font-size: 14px;
}

.landing-table th {
    padding: 15px 20px;
    background: #F0F9FF;
    color: #0C4A6E;
    font-weight: 600;
    text-align: left;
    border-bottom: 1px solid #E0F2FE;
    white-space: nowrap;
}

.landing-table td {
    padding: 14px 20px;
    color: #475569;
    line-height: 1.7;
    border-bottom: 1px solid #F0F9FF;
    vertical-align: top;
}

.landing-table tbody tr:last-child td {
    border-bottom: 0;
}

.landing-table td:first-child {
    font-weight: 600;
    color: #0C4A6E;
    white-space: nowrap;
}

/* ---------- Features ---------- */
.landing-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 32px;
}

.landing-feature {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 20px;
    background: #ffffff;
    border: 1px solid #E0F2FE;
    border-radius: 16px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.landing-feature:hover {
    border-color: #7DD3FC;
    box-shadow: 0 10px 24px rgba(2, 132, 199, 0.09);
}

.landing-feature-icon {
    flex: 0 0 42px;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: #E0F2FE;
    color: #0369A1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.landing-feature-icon svg {
    width: 22px;
    height: 22px;
}

.landing-feature-body h3 {
    margin: 0 0 6px;
    font-size: 15px;
    font-weight: 600;
    color: #0C4A6E;
}

.landing-feature-body p {
    margin: 0;
    font-size: 13px;
    line-height: 1.7;
    color: #475569;
}

/* ---------- Scenes ---------- */
.landing-scenes {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 32px;
}

.landing-scene {
    padding: 20px 18px;
    background: #ffffff;
    border: 1px solid #E0F2FE;
    border-radius: 16px;
    text-align: center;
}

.landing-scene h3 {
    margin: 0 0 6px;
    font-size: 15px;
    font-weight: 600;
    color: #0C4A6E;
}

.landing-scene p {
    margin: 0;
    font-size: 13px;
    line-height: 1.7;
    color: #475569;
}

/* ---------- FAQ ---------- */
.landing-faq {
    display: grid;
    gap: 12px;
    max-width: 760px;
    margin: 32px auto 0;
}

.landing-faq-item {
    padding: 18px 22px;
    background: #ffffff;
    border: 1px solid #E0F2FE;
    border-radius: 14px;
    box-shadow: 0 2px 10px rgba(2, 132, 199, 0.05);
}

.landing-faq-item h3 {
    margin: 0 0 8px;
    font-size: 15px;
    font-weight: 600;
    color: #0C4A6E;
}

.landing-faq-item p {
    margin: 0;
    font-size: 14px;
    line-height: 1.8;
    color: #475569;
}

/* ---------- Final CTA band ---------- */
.landing-cta-band {
    margin-top: 64px;
    padding: 56px 28px;
    text-align: center;
    background: linear-gradient(135deg, #0C4A6E 0%, #0369A1 100%);
    border-radius: 24px;
}

.landing-cta-band h2 {
    margin: 0 0 22px;
    font-size: 26px;
    font-weight: 700;
    color: #ffffff;
}

.landing-cta-band .landing-cta {
    background: #ffffff;
    color: #0C4A6E;
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.22);
}

.landing-cta-band .landing-cta:hover,
.landing-cta-band .landing-cta:focus {
    background: #F0F9FF;
    color: #0C4A6E;
}

.landing-contact {
    margin: 18px 0 0;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.88);
}

.landing-contact strong {
    color: #ffffff;
    font-weight: 600;
}

/* ---------- Responsive ---------- */
@media (max-width: 991px) {
    .landing-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .landing-scenes {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 767px) {
    .landing-hero {
        padding: 48px 20px 44px;
    }

    .landing-hero h1 {
        font-size: 30px;
    }

    .landing-lead {
        font-size: 15px;
    }

    .landing-steps {
        grid-template-columns: 1fr;
    }

    .landing-features {
        grid-template-columns: 1fr;
    }

    .landing-section {
        margin-top: 48px;
    }

    .landing-cta-band {
        padding: 44px 20px;
    }
}

@media (max-width: 480px) {
    .landing-hero h1 {
        font-size: 26px;
    }

    .landing-stats {
        grid-template-columns: 1fr;
    }

    .landing-scenes {
        grid-template-columns: 1fr;
    }

    .landing-section h2 {
        font-size: 23px;
    }

    .landing-cta-band h2 {
        font-size: 22px;
    }
}

/* ---------- Motion preference ---------- */
@media (prefers-reduced-motion: reduce) {
    .landing-cta,
    .landing-step,
    .landing-feature {
        transition: none;
        transform: none;
    }
}