/* 官网落地页 — Apple 风白底极简（与全站 theme.js 联动） */
.lp {
    --lp-bg: #ffffff;
    --lp-bg-elevated: #f5f5f7;
    --lp-bg-card: #ffffff;
    --lp-border: rgba(0, 0, 0, 0.08);
    --lp-border-strong: rgba(0, 0, 0, 0.12);
    --lp-text: #1d1d1f;
    --lp-text-muted: #6e6e73;
    --lp-text-dim: #86868b;
    --lp-accent: #0071e3;
    --lp-accent-dim: rgba(0, 113, 227, 0.08);
    --lp-accent-glow: rgba(0, 113, 227, 0.12);
    --lp-btn-bg: #0071e3;
    --lp-btn-border: transparent;
    --lp-btn-hover-bg: #0077ed;
    --lp-btn-hover-border: transparent;
    --lp-radius: 18px;
    --lp-radius-lg: 20px;
    --lp-nav-h: 52px;
    --lp-max: 1120px;
    --lp-font: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

.lp,
.lp * {
    box-sizing: border-box;
}

.lp {
    margin: 0;
    font-family: var(--lp-font);
    background: var(--lp-bg);
    color: var(--lp-text);
    -webkit-font-smoothing: antialiased;
    letter-spacing: -0.01em;
}

.lp a {
    color: inherit;
    text-decoration: none;
}

/* 链接型按钮：优先级须高于 .lp a { color: inherit } */
.lp a.lp-btn-primary,
.lp a.lp-btn-primary:hover,
.lp a.lp-btn-primary:focus-visible {
    color: #ffffff;
}

.lp a.lp-btn-outline,
.lp a.lp-btn-outline:hover {
    color: var(--lp-text);
}

.lp-shell {
    min-height: 100vh;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
}

/* 首页接入全站顶栏：与工具页同一套导航 */
.lp .site-topbar {
    position: sticky;
    top: 0;
    z-index: 300;
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.82) !important;
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom-color: var(--lp-border) !important;
}

@media (max-width: 520px) {
    .lp .site-top-action-text {
        display: none;
    }
}

html.lp {
    scroll-behavior: smooth;
}

/* —— 旧落地页独立顶栏（保留样式供参考，首页已改用 site-topbar） —— */
.lp-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: var(--lp-nav-h);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 20px;
    background: rgba(5, 5, 5, 0.72);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--lp-border);
}

.lp-nav-inner {
    width: 100%;
    max-width: var(--lp-max);
    display: flex;
    align-items: center;
    gap: 12px;
}

.lp-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 15px;
    flex-shrink: 0;
    margin-right: 8px;
}

.lp-brand-mark {
    width: 32px;
    height: 32px;
    border-radius: 10px;
    background: var(--lp-btn-bg);
    border: 1px solid var(--lp-btn-border);
    color: var(--lp-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.lp-nav-links {
    display: none;
    align-items: center;
    gap: 2px;
    flex: 1;
    justify-content: center;
}

@media (min-width: 960px) {
    .lp-nav-links {
        display: flex;
    }
}

.lp-nav-links a {
    padding: 8px 12px;
    font-size: 13px;
    font-weight: 500;
    color: var(--lp-text-muted);
    border-radius: 8px;
    transition: color 0.15s, background 0.15s;
}

.lp-nav-links a:hover {
    color: var(--lp-text);
    background: rgba(255, 255, 255, 0.04);
}

.lp-nav-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
}

.lp-btn-ghost {
    display: none;
    padding: 8px 14px;
    font-size: 13px;
    font-weight: 600;
    color: var(--lp-text-muted);
    border-radius: 10px;
    transition: color 0.15s, background 0.15s;
}

@media (min-width: 640px) {
    .lp-btn-ghost {
        display: inline-flex;
        align-items: center;
    }
}

.lp-btn-ghost:hover {
    color: var(--lp-text);
    background: rgba(0, 0, 0, 0.04);
}

.lp-btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 11px 22px;
    font-size: 14px;
    font-weight: 600;
    color: #ffffff;
    background: var(--lp-btn-bg);
    border-radius: 980px;
    border: 1px solid var(--lp-btn-border);
    cursor: pointer;
    transition: transform 0.15s, background 0.15s, opacity 0.15s;
    white-space: nowrap;
}

.lp-btn-primary:hover {
    background: var(--lp-btn-hover-bg);
    border-color: var(--lp-btn-hover-border);
    transform: translateY(-1px);
}

.lp-nav-toggle {
    display: flex;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--lp-border);
    border-radius: 10px;
    background: transparent;
    color: var(--lp-text);
    cursor: pointer;
    margin-left: 4px;
}

@media (min-width: 960px) {
    .lp-nav-toggle {
        display: none;
    }
}

.lp-mobile-menu {
    display: none;
    position: fixed;
    top: var(--lp-nav-h);
    left: 0;
    right: 0;
    z-index: 99;
    padding: 12px 16px 20px;
    background: rgba(8, 8, 8, 0.96);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--lp-border);
}

.lp-mobile-menu.open {
    display: block;
}

.lp-mobile-menu a {
    display: block;
    padding: 12px 14px;
    font-size: 15px;
    font-weight: 500;
    color: var(--lp-text-muted);
    border-radius: 10px;
}

.lp-mobile-menu a:hover {
    background: rgba(255, 255, 255, 0.04);
    color: var(--lp-text);
}

.lp-mobile-menu .lp-mobile-cta {
    margin-top: 8px;
    text-align: center;
    color: var(--lp-text);
    background: var(--lp-btn-bg);
    border: 1px solid var(--lp-btn-border);
    font-weight: 600;
}

/* —— 通用区块 —— */
.lp-main {
    flex: 1;
    padding-top: 0;
}

.lp-section {
    padding: 80px 24px;
}

.lp-section.lp-section-tight {
    padding-top: 48px;
    padding-bottom: 48px;
}

.lp-wrap {
    max-width: var(--lp-max);
    margin: 0 auto;
}

.lp-eyebrow {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--lp-accent);
    margin-bottom: 12px;
}

.lp-h2 {
    font-size: clamp(1.5rem, 3.5vw, 2rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-bottom: 12px;
}

.lp-lead {
    font-size: 16px;
    line-height: 1.65;
    color: var(--lp-text-muted);
    max-width: 36em;
}

.lp-lead-center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.lp-h2-center {
    text-align: center;
}

/* —— Hero —— */
.lp-hero {
    padding: 56px 20px 48px;
    text-align: center;
}

.lp-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 500;
    color: var(--lp-text-muted);
    background: var(--lp-bg-card);
    border: 1px solid var(--lp-border);
    margin-bottom: 24px;
}

.lp-pill-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--lp-accent);
    box-shadow: none;
}

.lp-h1 {
    font-size: clamp(2rem, 5.5vw, 3.25rem);
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1.1;
    max-width: 14ch;
    margin: 0 auto 20px;
}

.lp-hero-sub {
    font-size: clamp(15px, 2.2vw, 18px);
    line-height: 1.65;
    color: var(--lp-text-muted);
    max-width: 32em;
    margin: 0 auto 32px;
}

.lp-hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    margin-bottom: 0;
}

/* Hero 双按钮：等高、等宽、同款字号 */
.lp-hero-cta .lp-btn-primary,
.lp-hero-cta .lp-btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-width: 176px;
    width: 176px;
    height: 48px;
    padding: 0 24px;
    font-size: 17px;
    font-weight: 600;
    border-radius: 980px;
    box-sizing: border-box;
    white-space: nowrap;
}

.lp-btn-lg {
    border-radius: 980px;
}

.lp-btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0 24px;
    min-height: 48px;
    font-size: 17px;
    font-weight: 600;
    color: var(--lp-accent);
    background: transparent;
    border: 1px solid var(--lp-accent);
    border-radius: 980px;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.lp-btn-outline:hover {
    color: #ffffff;
    background: var(--lp-accent);
    border-color: var(--lp-accent);
}

/* Hero 主 CTA */
.lp-hero-cta .lp-btn-primary {
    background: var(--lp-btn-bg);
    border-color: var(--lp-btn-border);
    color: #ffffff;
}

.lp-play {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(0, 0, 0, 0.08);
    color: var(--lp-text);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    z-index: 1;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

/* —— 信任区 —— */
.lp-trust {
    padding: 56px 20px 64px;
    border-top: 1px solid var(--lp-border);
    border-bottom: 1px solid var(--lp-border);
    background: var(--lp-bg-elevated);
}

.lp-trust .lp-eyebrow,
.lp-trust .lp-h2,
.lp-trust > .lp-wrap > .lp-lead {
    text-align: center;
}

.lp-trust > .lp-wrap > .lp-lead {
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 36px;
}

.lp-trust-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px 16px;
    max-width: 880px;
    margin: 0 auto 40px;
}

@media (min-width: 640px) {
    .lp-trust-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 28px 24px;
    }
}

@media (min-width: 900px) {
    .lp-trust-stats {
        grid-template-columns: repeat(6, 1fr);
    }
}

.lp-stat {
    text-align: center;
    padding: 16px 8px;
    border-radius: var(--lp-radius);
    background: var(--lp-bg-card);
    border: 1px solid var(--lp-border);
}

.lp-stat-num {
    font-size: clamp(1.5rem, 3.5vw, 2rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--lp-text);
    line-height: 1.1;
}

.lp-stat-num span {
    color: var(--lp-accent);
    font-size: 0.72em;
}

.lp-stat-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--lp-text);
    margin-top: 6px;
}

.lp-stat-hint {
    font-size: 11px;
    color: var(--lp-text-dim);
    margin-top: 4px;
    line-height: 1.35;
}

.lp-trust-pillars {
    display: grid;
    gap: 14px;
    max-width: 960px;
    margin: 0 auto 40px;
}

@media (min-width: 640px) {
    .lp-trust-pillars {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 900px) {
    .lp-trust-pillars {
        grid-template-columns: repeat(4, 1fr);
    }
}

.lp-trust-pillar {
    padding: 20px;
    border-radius: var(--lp-radius);
    background: var(--lp-bg-card);
    border: 1px solid var(--lp-border);
}

.lp-trust-pillar-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: var(--lp-accent-dim);
    color: var(--lp-accent);
    font-size: 16px;
    margin-bottom: 12px;
}

.lp-trust-pillar h3 {
    font-size: 15px;
    font-weight: 700;
    margin: 0 0 6px;
    letter-spacing: -0.02em;
}

.lp-trust-pillar p {
    font-size: 13px;
    line-height: 1.55;
    color: var(--lp-text-muted);
    margin: 0;
}

.lp-trust-steps {
    max-width: 960px;
    margin: 0 auto 40px;
    padding: 24px;
    border-radius: var(--lp-radius-lg);
    background: var(--lp-bg-card);
    border: 1px solid var(--lp-border);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
}

.lp-trust-steps-label {
    text-align: center;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--lp-accent);
    margin: 0 0 20px;
}

.lp-trust-steps-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 20px;
}

@media (min-width: 720px) {
    .lp-trust-steps-list {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }
}

.lp-trust-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 0 8px;
}

.lp-trust-step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--lp-accent);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 10px;
    flex-shrink: 0;
}

.lp-trust-step-title {
    display: block;
    font-size: 15px;
    margin: 0 0 6px;
}

.lp-trust-step-desc {
    margin: 0;
    font-size: 13px;
    line-height: 1.5;
    color: var(--lp-text-muted);
    max-width: 220px;
}

.lp-trust-compare {
    max-width: 960px;
    margin: 0 auto 40px;
}

.lp-trust-compare-title {
    text-align: center;
    font-size: 17px;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0 0 20px;
}

.lp-trust-compare-grid {
    display: grid;
    gap: 12px;
}

@media (min-width: 640px) {
    .lp-trust-compare-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }
}

.lp-trust-compare-col {
    padding: 20px;
    border-radius: var(--lp-radius);
    border: 1px solid var(--lp-border);
}

.lp-trust-compare-col--old {
    background: rgba(0, 0, 0, 0.02);
}

.lp-trust-compare-col--new {
    background: var(--lp-accent-dim);
    border-color: rgba(0, 113, 227, 0.2);
}

.lp-trust-compare-head {
    display: block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--lp-text-dim);
    margin-bottom: 14px;
}

.lp-trust-compare-col--new .lp-trust-compare-head {
    color: var(--lp-accent);
}

.lp-trust-compare-col p {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    line-height: 1.5;
    margin: 0 0 12px;
    color: var(--lp-text-muted);
}

.lp-trust-compare-col p:last-child {
    margin-bottom: 0;
}

.lp-trust-compare-col p i {
    flex-shrink: 0;
    margin-top: 3px;
    font-size: 12px;
}

.lp-trust-compare-col--old p i {
    color: #c9342a;
}

.lp-trust-compare-col--new p i {
    color: var(--lp-accent);
}

.lp-quotes {
    display: grid;
    gap: 16px;
    max-width: 960px;
    margin: 0 auto 40px;
}

@media (min-width: 640px) {
    .lp-quotes {
        grid-template-columns: 1fr 1fr;
    }
}

.lp-quote {
    padding: 24px;
    border-radius: var(--lp-radius);
    background: var(--lp-bg-card);
    border: 1px solid var(--lp-border);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
}

.lp-quote-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 12px;
}

.lp-quote-stars {
    display: inline-flex;
    gap: 2px;
    color: #f5a623;
    font-size: 11px;
}

.lp-quote-tag {
    font-size: 11px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 999px;
    background: var(--lp-accent-dim);
    color: var(--lp-accent);
}

.lp-quote p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--lp-text-muted);
    margin-bottom: 12px;
}

.lp-quote cite {
    font-size: 12px;
    font-style: normal;
    font-weight: 600;
    color: var(--lp-text-dim);
}

.lp-trust-platforms {
    max-width: 720px;
    margin: 0 auto 40px;
    text-align: center;
}

.lp-trust-platforms-label {
    font-size: 13px;
    color: var(--lp-text-dim);
    margin: 0 0 16px;
}

.lp-trust-platforms-grid {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 12px 16px;
}

.lp-trust-platform {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 999px;
    background: var(--lp-bg-card);
    border: 1px solid var(--lp-border);
    font-size: 13px;
    font-weight: 600;
    color: var(--lp-text-muted);
}

.lp-trust-platform i {
    color: var(--lp-accent);
    font-size: 14px;
}

.lp-trust-cta {
    text-align: center;
    padding: 32px 24px;
    border-radius: var(--lp-radius-lg);
    background: linear-gradient(180deg, var(--lp-bg-card) 0%, var(--lp-accent-dim) 100%);
    border: 1px solid rgba(0, 113, 227, 0.15);
}

.lp-trust-cta-lead {
    font-size: 16px;
    font-weight: 600;
    color: var(--lp-text);
    margin: 0 0 20px;
    line-height: 1.5;
}

.lp-trust-cta-note {
    margin: 14px 0 0;
    font-size: 13px;
    color: var(--lp-text-dim);
}

.lp-trust-cta-note a {
    color: var(--lp-accent);
    font-weight: 600;
}

.lp-trust-cta-note a:hover {
    text-decoration: underline;
}

.lp-trust-cta .lp-btn-primary,
.lp-trust-cta .lp-btn-primary:hover {
    color: #ffffff;
    background: var(--lp-btn-bg);
    border-color: var(--lp-btn-border);
}

/* —— 能力结构：适中尺寸横向卡片 —— */
.lp-feature-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px 20px;
    width: fit-content;
    max-width: 100%;
    margin-top: 36px;
    margin-bottom: 32px;
    margin-left: auto;
    margin-right: auto;
    padding: 14px 28px;
    border-radius: 999px;
    background: var(--lp-bg-elevated);
    border: 1px solid var(--lp-border);
    font-size: 16px;
    font-weight: 600;
    color: var(--lp-text);
}

.lp-feature-flow-item {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.lp-feature-flow-step {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    color: var(--lp-accent);
    background: var(--lp-accent-dim);
}

.lp-feature-flow-line {
    width: 32px;
    height: 2px;
    border-radius: 1px;
    background: linear-gradient(90deg, var(--lp-border-strong), var(--lp-accent-glow), var(--lp-border-strong));
}

@media (min-width: 640px) {
    .lp-feature-flow {
        padding: 16px 36px;
        gap: 14px 24px;
    }

    .lp-feature-flow-line {
        width: 48px;
    }
}

.lp-feature-board {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.lp-feature-group-label {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
    font-size: 16px;
    font-weight: 600;
    color: var(--lp-text);
}

.lp-feature-group-step {
    font-size: 13px;
    font-weight: 700;
    color: var(--lp-accent);
}

.lp-feature-group-name {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.lp-feature-group-tag {
    font-size: 13px;
    font-weight: 500;
    color: var(--lp-text-muted);
}

.lp-feature-group-tag::before {
    content: '·';
    margin-right: 10px;
    color: var(--lp-border-strong);
}

.lp-feature-grid {
    display: grid;
    gap: 14px;
    grid-template-columns: 1fr;
}

@media (min-width: 640px) {
    .lp-feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 960px) {
    .lp-feature-group--content .lp-feature-grid,
    .lp-feature-group--tools .lp-feature-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* 图生视频仅一项：宽度随内容，避免横向拉满 */
.lp-feature-group--video .lp-feature-grid {
    display: flex;
    flex-wrap: wrap;
}

.lp-feature-group--video .lp-feature-card {
    width: 100%;
    max-width: 400px;
}

.lp-feature-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 18px 20px;
    min-height: 84px;
    border-radius: 16px;
    border: 1px solid var(--lp-border);
    background: var(--lp-bg-card);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
    transition: background 0.15s, border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}

.lp-feature-card:hover {
    background: var(--lp-bg-elevated);
    border-color: rgba(0, 113, 227, 0.18);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    transform: translateY(-1px);
}

/* 「核心」仅保留角标，卡片边框/底色与其它项一致 */
.lp-feature-card.is-featured {
    border-color: var(--lp-border);
    background: var(--lp-bg-card);
}

.lp-feature-card-icon {
    width: 44px;
    height: 44px;
    border-radius: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--lp-accent);
    background: var(--lp-accent-dim);
    flex-shrink: 0;
    margin-top: 1px;
}

.lp-feature-card-body {
    flex: 1;
    min-width: 0;
}

.lp-feature-card-body strong {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 6px;
}

.lp-feature-card-body span {
    display: block;
    font-size: 14px;
    line-height: 1.55;
    color: var(--lp-text-muted);
}

.lp-feature-card-tag {
    font-size: 11px;
    font-weight: 700;
    font-style: normal;
    padding: 2px 7px;
    border-radius: 4px;
    color: var(--lp-accent);
    background: var(--lp-accent-dim);
}

.lp-feature-card-arrow {
    font-size: 12px;
    color: var(--lp-text-dim);
    flex-shrink: 0;
    margin-top: 6px;
    opacity: 0.5;
    transition: opacity 0.15s, transform 0.15s, color 0.15s;
}

.lp-feature-card:hover .lp-feature-card-arrow {
    opacity: 1;
    transform: translateX(2px);
    color: var(--lp-accent);
}

/* —— 案例 —— */
.lp-cases {
    display: grid;
    gap: 20px;
}

@media (min-width: 768px) {
    .lp-cases {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1200px) {
    .lp-cases {
        grid-template-columns: repeat(3, 1fr);
    }
}

.lp-case {
    border-radius: var(--lp-radius-lg);
    border: 1px solid var(--lp-border);
    background: var(--lp-bg-card);
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
}

.lp-case-head {
    padding: 16px 18px 12px;
}

.lp-case-head h3 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 4px;
}

.lp-case-head p {
    font-size: 12px;
    color: var(--lp-text-dim);
}

.lp-case-visual {
    position: relative;
    overflow: hidden;
}

/* 图片案例：轮播大图（避免 2×2 缩略图过小发糊） */
.lp-case-visual--carousel {
    background: #f5f5f7;
}

.lp-case-carousel-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: 320px;
    padding: 24px;
    text-align: center;
    background: linear-gradient(135deg, #f5f5f7 0%, #e8e8ed 60%);
}

.lp-case-carousel-empty em {
    font-style: normal;
    font-size: 13px;
    font-weight: 700;
    color: var(--lp-accent);
}

.lp-case-carousel-empty span {
    font-size: 12px;
    color: var(--lp-text-dim);
}

.lp-case-carousel {
    position: relative;
}

.lp-case-carousel-viewport {
    overflow: hidden;
    width: 100%;
    aspect-ratio: 9 / 16;
    max-height: min(72vh, 640px);
    background: #f5f5f7;
    position: relative;
}

.lp-case-carousel-track {
    display: flex;
    width: 100%;
    height: 100%;
    will-change: transform;
    transition: transform 0.52s cubic-bezier(0.22, 1, 0.36, 1);
}

.lp-case-carousel-slide {
    flex: 0 0 100%;
    width: 100%;
    min-width: 100%;
    height: 100%;
}

@media (prefers-reduced-motion: reduce) {
    .lp-case-carousel-track {
        transition: none;
    }
}

.lp-case-zoom-btn {
    display: block;
    width: 100%;
    height: 100%;
    padding: 0;
    margin: 0;
    border: none;
    background: #f5f5f7;
    cursor: zoom-in;
    position: relative;
    overflow: hidden;
    -webkit-appearance: none;
    appearance: none;
    font: inherit;
    color: inherit;
    line-height: 0;
}

.lp-case-carousel-slide img.is-load-fail {
    visibility: hidden;
}

.lp-case-zoom-btn:has(img.is-load-fail)::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(145deg, var(--bg-main, #f0f2f5) 0%, var(--border, #e2e8f0) 100%);
    z-index: 0;
}

.lp-case-carousel-slide img,
.lp-case-carousel-slide video {
    width: 100%;
    height: 100%;
    max-width: 100%;
    object-fit: cover;
    object-position: center center;
    display: block;
    background: #f5f5f7;
}

.lp-case-carousel--video .lp-case-carousel-slide video {
    object-fit: cover;
    object-position: center center;
}

.lp-case-zoom-hint {
    position: absolute;
    right: 10px;
    bottom: 10px;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    pointer-events: none;
    opacity: 0.85;
}

.lp-case-carousel-nav {
    display: none;
}

.lp-case-carousel-prev { left: 10px; }
.lp-case-carousel-next { right: 10px; }

.lp-case-carousel-dots {
    display: flex;
    justify-content: center;
    gap: 6px;
    padding: 10px 0 14px;
    background: #ffffff;
}

.lp-case-carousel-dot {
    width: 6px;
    height: 6px;
    border-radius: 999px;
    border: none;
    padding: 0;
    background: rgba(0, 0, 0, 0.15);
    cursor: pointer;
    transition: width 0.35s cubic-bezier(0.22, 1, 0.36, 1), background 0.25s;
    position: relative;
    overflow: hidden;
}

.lp-case-carousel-dot.is-active {
    width: 22px;
    background: rgba(0, 0, 0, 0.2);
}

.lp-case-carousel-dot.is-active::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 100%;
    border-radius: inherit;
    background: var(--lp-accent);
    transform-origin: left center;
    transform: scaleX(0);
    animation: lp-case-dot-progress 2s linear forwards;
}

@keyframes lp-case-dot-progress {
    from { transform: scaleX(0); }
    to { transform: scaleX(1); }
}

@media (prefers-reduced-motion: reduce) {
    .lp-case-carousel-dot.is-active::after {
        animation: none;
        transform: scaleX(1);
    }
}

.lp-case-carousel.is-paused .lp-case-carousel-dot.is-active::after {
    animation-play-state: paused;
}

.lp-case-carousel--video .lp-case-carousel-dot.is-active::after {
    animation-duration: var(--case-dot-duration, 5s);
}

/* 案例展示区略缩小（约 92%） */
#showcases.lp-section {
    padding-top: 44px;
    padding-bottom: 44px;
}

#showcases .lp-wrap {
    max-width: 1030px;
}

#showcases .lp-eyebrow {
    font-size: 11px;
    margin-bottom: 11px;
}

#showcases .lp-h2 {
    font-size: clamp(1.38rem, 3.2vw, 1.85rem);
    margin-bottom: 11px;
}

#showcases .lp-lead {
    font-size: 15px;
}

#showcases .lp-cases {
    gap: 18px;
    margin-top: 33px;
}

#showcases .lp-case-head {
    padding: 16px 18px 12px;
}

#showcases .lp-case-head h3 {
    font-size: 16px;
    margin-bottom: 4px;
}

#showcases .lp-case-head p {
    font-size: 13px;
}

#showcases .lp-case-carousel-viewport {
    max-height: min(66vh, 590px);
}

#showcases .lp-case-carousel-empty {
    min-height: 295px;
    padding: 22px;
}

#showcases .lp-case-carousel-empty em {
    font-size: 12px;
}

#showcases .lp-case-carousel-empty span {
    font-size: 11px;
}

#showcases .lp-case-carousel-dots {
    gap: 6px;
    padding: 9px 0 13px;
}

#showcases .lp-case-carousel-dot.is-active {
    width: 20px;
}

#showcases .lp-case-zoom-hint {
    right: 9px;
    bottom: 9px;
    width: 29px;
    height: 29px;
    font-size: 12px;
}

/* 点击放大 */
.lp-case-lightbox {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.92);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px 16px 16px;
    box-sizing: border-box;
}

.lp-case-lightbox[hidden] {
    display: none !important;
}

.lp-case-lightbox-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 40px;
    height: 40px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    z-index: 1;
}

.lp-case-lightbox-inner {
    max-width: min(960px, 100%);
    max-height: 100%;
    overflow: auto;
    -webkit-overflow-scrolling: touch;
}

.lp-case-lightbox-inner img {
    display: block;
    width: 100%;
    height: auto;
    max-height: calc(100vh - 80px);
    object-fit: contain;
    margin: 0 auto;
}

/* 视频案例 2×2 网格（上二下二） */
.lp-case-visual--grid {
    aspect-ratio: 9 / 16;
}

.lp-case-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 3px;
    width: 100%;
    height: 100%;
    min-height: 0;
    background: #f5f5f7;
}

.lp-case-grid-cell {
    position: relative;
    overflow: hidden;
    min-height: 0;
    background: linear-gradient(135deg, #f5f5f7 0%, #e8e8ed 60%);
}

.lp-case-grid-cell img,
.lp-case-grid-cell video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
    display: block;
}

.lp-case-grid-ph {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 8px;
    text-align: center;
    box-sizing: border-box;
}

.lp-case-grid-ph em {
    font-style: normal;
    font-size: 10px;
    font-weight: 700;
    color: var(--lp-accent);
}

.lp-case-grid-ph span {
    font-size: 9px;
    color: #a1a1aa;
    line-height: 1.3;
}

.lp-case-grid-ph i {
    font-size: 14px;
    color: #52525b;
    opacity: 0.7;
}

.lp-case-grid-ph--video i {
    font-size: 18px;
    color: #71717a;
}

.lp-case-grid-cell .lp-case-grid-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.45);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    pointer-events: none;
    z-index: 1;
}

.lp-case-visual--video .lp-case-grid-cell {
    background: #1d1d1f;
}

/* 单张案例图（保留兼容） */
.lp-case-visual--single {
    aspect-ratio: 9 / 16;
}

.lp-case-poster-vis {
    height: 100%;
    width: 100%;
    background: linear-gradient(135deg, #f5f5f7 0%, #e8e8ed 60%);
    display: flex;
    align-items: stretch;
    justify-content: stretch;
    padding: 0;
}

.lp-case-poster-card {
    width: 100%;
    height: 100%;
    aspect-ratio: auto;
    border-radius: 0;
    border: none;
    background: linear-gradient(180deg, #ffffff 0%, #f5f5f7 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 16px;
    box-sizing: border-box;
}

.lp-case-poster-card em {
    font-style: normal;
    font-size: 11px;
    font-weight: 700;
    color: var(--lp-accent);
}

.lp-case-poster-media {
    width: 100%;
    height: 100%;
    max-width: none;
    aspect-ratio: auto;
    border-radius: 0;
    overflow: hidden;
    border: none;
    box-shadow: none;
}

.lp-case-poster-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.lp-case-video-vis {
    width: 100%;
    height: 100%;
    background: #1d1d1f;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.lp-case-video-vis::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40%;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
}

.lp-case-frame {
    width: 100%;
    height: 100%;
    aspect-ratio: auto;
    max-height: none;
    border-radius: 0;
    border: none;
    background: linear-gradient(180deg, #f5f5f7 0%, #e8e8ed 100%);
    position: relative;
}

.lp-case-frame .lp-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 44px;
    height: 44px;
    font-size: 14px;
}

.lp-case-frame--media {
    position: relative;
    overflow: hidden;
    background: #1d1d1f;
}

.lp-case-frame--media img,
.lp-case-frame--media video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
    display: block;
}

/* —— 为什么选择 —— */
.lp-why-grid {
    display: grid;
    gap: 16px;
}

@media (min-width: 640px) {
    .lp-why-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 900px) {
    .lp-why-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.lp-why-card {
    padding: 28px;
    border-radius: var(--lp-radius);
    border: 1px solid var(--lp-border);
    background: var(--lp-bg-card);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
}

.lp-why-card i {
    font-size: 20px;
    color: var(--lp-accent);
    margin-bottom: 14px;
}

.lp-why-card h3 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 8px;
}

.lp-why-card p {
    font-size: 13px;
    line-height: 1.55;
    color: var(--lp-text-muted);
}

/* —— 定价 —— */
.lp-pricing {
    display: grid;
    gap: 16px;
    align-items: stretch;
}

@media (min-width: 768px) {
    .lp-pricing {
        grid-template-columns: repeat(3, 1fr);
    }
}

.lp-price-card {
    padding: 28px 24px;
    border-radius: var(--lp-radius-lg);
    border: 1px solid var(--lp-border);
    background: var(--lp-bg-card);
    display: flex;
    flex-direction: column;
}

.lp-price-card.featured {
    border-color: rgba(0, 113, 227, 0.25);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.08), 0 2px 8px rgba(0, 0, 0, 0.04);
    position: relative;
}

.lp-price-badge {
    position: absolute;
    top: -11px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 11px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 999px;
    background: var(--lp-bg-card);
    border: 1px solid var(--lp-btn-border);
    color: var(--lp-text);
}

.lp-price-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--lp-text-muted);
    margin-bottom: 8px;
}

.lp-price-amount {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 4px;
}

.lp-price-amount small {
    font-size: 14px;
    font-weight: 500;
    color: var(--lp-text-dim);
}

.lp-price-note {
    font-size: 13px;
    color: var(--lp-text-dim);
    margin-bottom: 20px;
    min-height: 2.5em;
}

.lp-price-features {
    list-style: none;
    margin: 0 0 24px;
    padding: 0;
    flex: 1;
}

.lp-price-features li {
    font-size: 13px;
    color: var(--lp-text-muted);
    padding: 8px 0;
    border-bottom: 1px solid var(--lp-border);
    display: flex;
    gap: 10px;
    align-items: flex-start;
}

.lp-price-features li i {
    color: var(--lp-accent);
    margin-top: 2px;
    flex-shrink: 0;
}

.lp-price-card .lp-btn-primary,
.lp-price-card .lp-btn-outline {
    width: 100%;
    justify-content: center;
    text-align: center;
}

.lp-price-card .lp-btn-outline {
    display: flex;
}

.lp-footer {
    padding: 32px 20px 40px;
    border-top: 1px solid var(--lp-border);
    text-align: center;
}

.lp-footer-brand {
    font-weight: 700;
    font-size: 14px;
    margin-bottom: 8px;
}

.lp-footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 16px;
    margin-top: 16px;
    font-size: 13px;
}

.lp-footer-links a {
    color: var(--lp-text-dim);
}

.lp-footer-links a:hover {
    color: var(--lp-accent);
}

.lp-footer-copy {
    margin-top: 20px;
    font-size: 12px;
    color: var(--lp-text-dim);
}