/* ============================================================
   落地页样式（行业页 / 功能页 / 价格 / 部署 / 对比）
   色板与 style.css 的 :root 变量一致，只做行业化的排版与卡片。
   ============================================================ */

.lp {
    padding-top: 72px; /* 让出固定头部高度 */
}

/* ---------- 首屏 ---------- */
.lp-hero {
    background: linear-gradient(150deg, #0f172a 0%, #1e3a8a 55%, #2563eb 100%);
    color: #fff;
    padding: 44px 0 64px;
    position: relative;
    overflow: hidden;
}

.lp-hero::after {
    content: "";
    position: absolute;
    right: -160px;
    top: -120px;
    width: 460px;
    height: 460px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.10), transparent 68%);
    pointer-events: none;
}

.lp-crumb {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.62);
    margin-bottom: 28px;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.lp-crumb a {
    color: rgba(255, 255, 255, 0.78);
    text-decoration: none;
    transition: color 0.2s ease;
}

.lp-crumb a:hover {
    color: #fff;
}

.lp-crumb-current {
    color: rgba(255, 255, 255, 0.95);
}

.lp-hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 48px;
    align-items: start;
    position: relative;
    z-index: 1;
}

.lp-eyebrow {
    display: inline-block;
    font-size: 12px;
    letter-spacing: 0.16em;
    color: #bcd4f5;
    border: 1px solid rgba(188, 212, 245, 0.42);
    border-radius: 2px;
    padding: 4px 12px;
    margin-bottom: 18px;
}

.lp-hero h1 {
    font-size: 38px;
    line-height: 1.32;
    margin: 0 0 12px;
    font-weight: 600;
    letter-spacing: 0.01em;
}

.lp-hero-sub {
    font-size: 18px;
    color: #d7e6fb;
    margin: 0 0 18px;
    line-height: 1.65;
}

.lp-lead {
    font-size: 15px;
    line-height: 1.85;
    color: rgba(255, 255, 255, 0.80);
    margin: 0 0 24px;
    max-width: 680px;
}

.lp-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 28px;
}

.lp-chip {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 13px;
    color: #e4eefb;
    background: rgba(255, 255, 255, 0.10);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 999px;
    padding: 6px 14px;
}

.lp-chip i {
    font-size: 11px;
    color: #7dd3fc;
}

.lp-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.lp-actions-center {
    justify-content: center;
}

.lp-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 46px;
    padding: 0 26px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    white-space: nowrap;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.lp-btn-primary {
    background: #2563eb;
    color: #fff;
    box-shadow: 0 8px 20px -8px rgba(37, 99, 235, 0.8);
}

.lp-btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-1px);
    box-shadow: 0 12px 24px -10px rgba(37, 99, 235, 0.9);
}

.lp-btn-ghost {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.28);
}

.lp-btn-ghost:hover {
    background: rgba(255, 255, 255, 0.16);
}

/* 概览卡 */
.lp-facts {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 12px;
    padding: 24px 22px;
    backdrop-filter: blur(6px);
}

.lp-facts-title {
    font-size: 13px;
    letter-spacing: 0.14em;
    color: #bcd4f5;
    margin: 0 0 16px;
    font-weight: 500;
}

.lp-fact {
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.10);
}

.lp-fact:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.lp-fact dt {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: 4px;
}

.lp-fact dd {
    margin: 0;
    font-size: 14px;
    line-height: 1.6;
    color: #eef4fd;
}

/* ---------- 通用区块 ---------- */
.lp-section {
    padding: 64px 0;
    background: #fff;
}

.lp-section-alt {
    background: #f8fafc;
    border-top: 1px solid #eef2f7;
    border-bottom: 1px solid #eef2f7;
}

.lp-section-head {
    max-width: 760px;
    margin: 0 auto 36px;
    text-align: center;
}

.lp-section-head h2 {
    font-size: 26px;
    color: #0f172a;
    margin: 0 0 10px;
    font-weight: 600;
    line-height: 1.4;
}

.lp-section-head p {
    font-size: 15px;
    color: #64748b;
    margin: 0;
    line-height: 1.75;
}

.lp-grid {
    display: grid;
    gap: 20px;
}

.lp-grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.lp-grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.lp-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 26px 24px;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.lp-card h3 {
    font-size: 16px;
    color: #0f172a;
    margin: 0 0 10px;
    font-weight: 600;
    line-height: 1.5;
    display: flex;
    align-items: flex-start;
    gap: 9px;
}

.lp-card h3 i {
    color: #2563eb;
    font-size: 14px;
    margin-top: 4px;
    flex-shrink: 0;
}

.lp-card p {
    font-size: 14px;
    color: #475569;
    line-height: 1.8;
    margin: 0;
}

.lp-card:hover {
    border-color: #c7d7f0;
    box-shadow: 0 12px 28px -16px rgba(15, 23, 42, 0.28);
    transform: translateY(-2px);
}

.lp-pain {
    background: #fbfcfe;
    border-color: #e6edf6;
}

.lp-pain-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 8px;
    background: #eef4fe;
    color: #2563eb;
    font-size: 14px;
    margin-bottom: 14px;
}

/* 步骤 */
.lp-steps {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
    counter-reset: none;
}

.lp-step {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 26px 24px;
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.lp-step-num {
    font-size: 22px;
    font-weight: 600;
    color: #cbd8ea;
    line-height: 1;
    flex-shrink: 0;
    font-variant-numeric: tabular-nums;
}

.lp-step h3 {
    font-size: 15px;
    color: #0f172a;
    margin: 0 0 8px;
    font-weight: 600;
}

.lp-step p {
    font-size: 14px;
    color: #475569;
    line-height: 1.8;
    margin: 0;
}

/* FAQ */
.lp-faq {
    max-width: 860px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.lp-faq-item {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 0 22px;
}

.lp-faq-item summary {
    cursor: pointer;
    list-style: none;
    font-size: 15px;
    font-weight: 500;
    color: #0f172a;
    padding: 18px 30px 18px 0;
    position: relative;
    line-height: 1.6;
}

.lp-faq-item summary::-webkit-details-marker {
    display: none;
}

.lp-faq-item summary::after {
    content: "+";
    position: absolute;
    right: 0;
    top: 16px;
    font-size: 20px;
    color: #94a3b8;
    font-weight: 400;
    transition: transform 0.2s ease;
}

.lp-faq-item[open] summary::after {
    content: "−";
    color: #2563eb;
}

.lp-faq-item p {
    margin: 0;
    padding: 0 0 20px;
    font-size: 14px;
    color: #475569;
    line-height: 1.85;
    border-top: 1px solid #eef2f7;
    padding-top: 16px;
}

/* 延伸阅读 */
.lp-article {
    text-decoration: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.lp-article-date {
    font-size: 12px;
    color: #94a3b8;
    font-variant-numeric: tabular-nums;
}

.lp-article h3 {
    font-size: 15px;
    margin: 0;
    color: #0f172a;
    line-height: 1.6;
}

.lp-article-more {
    font-size: 13px;
    color: #2563eb;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: auto;
}

.lp-article:hover h3 {
    color: #1d4ed8;
}

/* 相关方案 */
.lp-sibling {
    text-decoration: none;
}

.lp-sibling h3 {
    color: #0f172a;
}

.lp-sibling p {
    color: #64748b;
}

/* CTA */
.lp-cta {
    padding: 64px 0 72px;
    background: linear-gradient(150deg, #0f172a 0%, #1e3a8a 100%);
    color: #fff;
    text-align: center;
}

.lp-cta h2 {
    font-size: 26px;
    margin: 0 0 12px;
    font-weight: 600;
    color: #fff;
    line-height: 1.45;
}

.lp-cta p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.76);
    margin: 0 0 28px;
    line-height: 1.8;
}

.lp-cta .lp-btn-ghost {
    border-color: rgba(255, 255, 255, 0.32);
}

/* ---------- 响应式 ---------- */
@media (max-width: 1200px) {
    .lp-hero-inner {
        grid-template-columns: minmax(0, 1fr) 300px;
        gap: 36px;
    }

    .lp-hero h1 {
        font-size: 34px;
    }
}

@media (max-width: 1024px) {
    .lp-hero-inner {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .lp-facts {
        max-width: 520px;
    }

    .lp-grid-3,
    .lp-steps {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 768px) {
    .lp {
        padding-top: 64px;
    }

    .lp-hero {
        padding: 32px 0 48px;
    }

    .lp-crumb {
        margin-bottom: 20px;
        font-size: 12px;
    }

    .lp-hero h1 {
        font-size: 26px;
        line-height: 1.38;
    }

    .lp-hero-sub {
        font-size: 16px;
    }

    .lp-lead {
        font-size: 14px;
        line-height: 1.8;
    }

    .lp-section {
        padding: 44px 0;
    }

    .lp-section-head {
        margin-bottom: 26px;
        text-align: left;
    }

    .lp-section-head h2 {
        font-size: 21px;
    }

    .lp-grid-3,
    .lp-grid-2,
    .lp-steps {
        grid-template-columns: 1fr;
    }

    .lp-card,
    .lp-step {
        padding: 22px 20px;
    }

    .lp-btn {
        height: 44px;
        padding: 0 22px;
        font-size: 14.5px;
    }

    .lp-cta h2 {
        font-size: 21px;
    }
}

@media (max-width: 480px) {
    .lp-hero h1 {
        font-size: 23px;
    }

    .lp-actions .lp-btn {
        flex: 1 1 100%;
    }

    .lp-faq-item {
        padding: 0 18px;
    }

    .lp-faq-item summary {
        font-size: 14.5px;
        padding-right: 26px;
    }
}