/* LiveMind 官网 — 与客户端登录页一致的青蓝→靛紫体系 */
:root {
    --lm-cyan: #06b6d4;
    --lm-cyan-deep: #0891b2;
    --lm-blue: #3b82f6;
    --lm-indigo: #6366f1;
    --lm-violet: #8b5cf6;
    --lm-page-bg: #f0f9ff;
    --lm-text-main: #0f172a;
    --lm-text-muted: #64748b;
    --lm-text-light: #94a3b8;
    --lm-gradient: linear-gradient(155deg, #06b6d4 0%, #3b82f6 48%, #8b5cf6 100%);
    --lm-btn-gradient: linear-gradient(135deg, #06b6d4 0%, #6366f1 100%);
    --lm-btn-gradient-hover: linear-gradient(135deg, #22d3ee 0%, #818cf8 100%);
    --lm-card-radius: 16px;
    --lm-card-shadow: 0 16px 40px rgba(14, 116, 144, 0.1), 0 2px 8px rgba(15, 23, 42, 0.04);
    --lm-glow-cyan: rgba(34, 211, 238, 0.45);
    --lm-glow-violet: rgba(192, 132, 252, 0.38);
    --lm-glow-amber: rgba(251, 191, 36, 0.28);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--lm-text-main);
    background-color: var(--lm-page-bg);
    background-image:
        radial-gradient(circle at 18% 35%, var(--lm-glow-cyan) 0%, transparent 42%),
        radial-gradient(circle at 82% 68%, var(--lm-glow-violet) 0%, transparent 40%),
        radial-gradient(circle at 55% 12%, var(--lm-glow-amber) 0%, transparent 38%);
    background-attachment: fixed;
    line-height: 1.6;
    overflow-x: hidden;
}

a { color: var(--lm-cyan-deep); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--lm-indigo); }

img { max-width: 100%; height: auto; display: block; }

.container {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ── 浮动粒子背景 ── */
.particles-canvas {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

/* ── 导航 ── */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 14px 0;
    transition: background 0.3s, box-shadow 0.3s, backdrop-filter 0.3s;
}

.site-header.scrolled {
    background: rgba(240, 249, 255, 0.85);
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 24px rgba(14, 116, 144, 0.08);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 800;
    background: var(--lm-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.5px;
}

.logo-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    object-fit: contain;
    background: #fff;
    box-shadow: 0 4px 14px rgba(6, 182, 212, 0.28);
    flex-shrink: 0;
}

img.logo-icon {
    display: block;
    -webkit-text-fill-color: initial;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
}

.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--lm-text-muted);
}

.nav-links a:hover { color: var(--lm-cyan-deep); }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border: none;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.2s;
    text-decoration: none;
}

.btn-primary {
    background: var(--lm-btn-gradient);
    color: #fff;
    box-shadow: 0 8px 20px rgba(6, 182, 212, 0.35);
}

.btn-primary:hover {
    background: var(--lm-btn-gradient-hover);
    box-shadow: 0 10px 24px rgba(99, 102, 241, 0.4);
    color: #fff;
    transform: translateY(-2px);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.7);
    color: var(--lm-cyan-deep);
    border: 1.5px solid rgba(6, 182, 212, 0.35);
    backdrop-filter: blur(4px);
}

.btn-outline:hover {
    background: #fff;
    border-color: var(--lm-cyan);
    color: var(--lm-indigo);
}

.btn-lg { padding: 16px 36px; font-size: 16px; }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--lm-text-main);
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
}

/* ── Hero ── */
.hero {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(6, 182, 212, 0.12);
    border: 1px solid rgba(6, 182, 212, 0.25);
    font-size: 13px;
    font-weight: 600;
    color: var(--lm-cyan-deep);
    margin-bottom: 20px;
    animation: fade-up 0.8s ease both;
}

.hero-badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #ef4444;
    animation: live-blink 1.2s ease-in-out infinite;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    animation: fade-up 0.8s ease 0.1s both;
}

.hero h1 .gradient-text {
    background: var(--lm-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 17px;
    color: var(--lm-text-muted);
    margin-bottom: 32px;
    max-width: 520px;
    animation: fade-up 0.8s ease 0.2s both;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    animation: fade-up 0.8s ease 0.3s both;
}

.hero-stats {
    display: flex;
    gap: 32px;
    margin-top: 40px;
    animation: fade-up 0.8s ease 0.4s both;
}

.hero-stat strong {
    display: block;
    font-size: 28px;
    font-weight: 800;
    background: var(--lm-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-stat span {
    font-size: 13px;
    color: var(--lm-text-muted);
}

/* Hero 右侧轮播 */
.hero-carousel-wrap {
    position: relative;
    animation: fade-up 0.8s ease 0.2s both;
}

.hero-carousel-card {
    background: var(--lm-gradient);
    border-radius: 20px;
    padding: 24px;
    box-shadow:
        0 32px 64px rgba(14, 116, 144, 0.2),
        0 0 0 1px rgba(255, 255, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.hero-carousel-card::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -40px;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    pointer-events: none;
}

.hero-carousel-card::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: -30px;
    width: 140px;
    height: 140px;
    border-radius: 50%;
    background: rgba(253, 224, 71, 0.15);
    pointer-events: none;
}

.carousel-viewport {
    position: relative;
    width: 100%;
    height: 320px;
    border-radius: 14px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.25);
}

.carousel-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transform: scale(0.96);
    transition: opacity 0.6s ease, transform 0.6s ease;
    pointer-events: none;
}

.carousel-slide.active {
    opacity: 1;
    transform: scale(1);
    pointer-events: auto;
}

.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.carousel-slide-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.75) 0%, transparent 55%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 20px;
    color: #fff;
}

.carousel-live-tag {
    position: absolute;
    top: 16px;
    left: 16px;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: 10px;
    background: linear-gradient(135deg, #fb7185, #f43f5e);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(244, 63, 94, 0.45);
}

.carousel-live-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #fff;
    animation: live-blink 1.2s ease-in-out infinite;
}

.carousel-slide-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 4px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.carousel-slide-desc {
    font-size: 13px;
    opacity: 0.9;
}

.carousel-caption {
    margin-top: 14px;
    text-align: center;
    color: rgba(255, 255, 255, 0.92);
    font-size: 14px;
    min-height: 22px;
}

.carousel-progress {
    display: flex;
    gap: 6px;
    margin-top: 12px;
}

.carousel-progress-seg {
    flex: 1;
    height: 4px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.22);
    cursor: pointer;
    overflow: hidden;
    position: relative;
}

.carousel-progress-seg::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: -10px;
    bottom: -10px;
}

.carousel-progress-fill {
    display: block;
    width: 0;
    height: 100%;
    background: linear-gradient(90deg, #fde047, #fb923c);
    border-radius: 4px;
    box-shadow: 0 0 8px rgba(251, 191, 36, 0.55);
    pointer-events: none;
}

.carousel-progress-seg.done .carousel-progress-fill { width: 100%; }
.carousel-progress-seg.playing .carousel-progress-fill {
    animation: progress-fill 5s linear forwards;
}

/* ── 通用区块 ── */
section {
    position: relative;
    z-index: 1;
    padding: 80px 0;
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 48px;
}

.section-tag {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 999px;
    background: rgba(6, 182, 212, 0.1);
    color: var(--lm-cyan-deep);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 12px;
}

.section-header h2 {
    font-size: clamp(1.6rem, 3.5vw, 2.4rem);
    font-weight: 800;
    margin-bottom: 14px;
}

.section-header p {
    color: var(--lm-text-muted);
    font-size: 16px;
}

/* ── 痛点卡片 ── */
.pain-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.pain-card {
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(8px);
    border-radius: var(--lm-card-radius);
    padding: 28px 24px;
    box-shadow: var(--lm-card-shadow);
    border: 1px solid rgba(255, 255, 255, 0.8);
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: default;
}

.pain-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 24px 48px rgba(14, 116, 144, 0.15);
}

.pain-emoji,
.pain-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.12), rgba(99, 102, 241, 0.1));
    color: var(--lm-cyan-deep);
}

.pain-icon .icon {
    width: 26px;
    height: 26px;
}

.pain-card h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 10px;
}

.pain-card p {
    font-size: 14px;
    color: var(--lm-text-muted);
    margin-bottom: 14px;
}

.pain-solution {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--lm-cyan-deep);
    padding-top: 12px;
    border-top: 1px dashed rgba(6, 182, 212, 0.25);
}

.pain-solution svg {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
}

/* ── 功能特性 ── */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.feature-card {
    display: flex;
    gap: 20px;
    background: #fff;
    border-radius: var(--lm-card-radius);
    padding: 28px;
    box-shadow: var(--lm-card-shadow);
    border: 1px solid rgba(226, 232, 240, 0.8);
    transition: transform 0.3s;
}

.feature-card:hover { transform: translateY(-4px); }

.feature-icon {
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.15), rgba(99, 102, 241, 0.12));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--lm-cyan-deep);
}

.feature-icon .icon {
    width: 26px;
    height: 26px;
}

.feature-card h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 14px;
    color: var(--lm-text-muted);
}

.feature-card-highlight {
    border: 1.5px solid rgba(6, 182, 212, 0.25);
    background: linear-gradient(135deg, rgba(255,255,255,1) 0%, rgba(240,249,255,0.9) 100%);
}

.feature-card-highlight .feature-icon {
    background: var(--lm-gradient);
    color: #fff;
}

.feature-card-highlight .feature-icon .icon {
    color: #fff;
}

/* ── AI 语音大模型区块 ── */
.ai-engine-section {
    background: linear-gradient(180deg, rgba(255,255,255,0.55) 0%, rgba(240,249,255,0.3) 100%);
    overflow: hidden;
}

.ai-engine-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    margin-bottom: 56px;
}

.ai-capability-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.ai-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid rgba(6, 182, 212, 0.22);
    color: var(--lm-cyan-deep);
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: default;
}

.ai-pill-icon {
    display: flex;
    align-items: center;
    color: var(--lm-cyan-deep);
}

.ai-pill:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(6, 182, 212, 0.15);
}

.ai-highlight-list {
    list-style: none;
    margin-bottom: 28px;
}

.ai-highlight-list li {
    padding: 14px 0;
    border-bottom: 1px solid rgba(6, 182, 212, 0.1);
}

.ai-highlight-list li:last-child { border-bottom: none; }

.ai-highlight-list strong {
    display: block;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--lm-text-main);
}

.ai-highlight-list span {
    font-size: 14px;
    color: var(--lm-text-muted);
    line-height: 1.6;
}

/* AI 可视化卡片 */
.ai-model-card {
    background: var(--lm-gradient);
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 32px 64px rgba(14, 116, 144, 0.25);
    color: #fff;
    position: relative;
    overflow: hidden;
}

.ai-model-card::before {
    content: '';
    position: absolute;
    top: -40px;
    right: -30px;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    pointer-events: none;
}

.ai-model-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.ai-model-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
}

.ai-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #4ade80;
    animation: live-blink 1.2s ease-in-out infinite;
    box-shadow: 0 0 8px rgba(74, 222, 128, 0.6);
}

.ai-model-badge {
    padding: 4px 10px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.18);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.ai-model-body {
    position: relative;
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
}

.ai-neural-ring {
    position: absolute;
    border-radius: 50%;
    border: 2px solid rgba(253, 224, 71, 0.5);
    animation: auth-ring-pulse 2.4s ease-out infinite;
}

.ai-neural-ring-1 { width: 120px; height: 120px; }
.ai-neural-ring-2 { width: 150px; height: 150px; animation-delay: 0.8s; opacity: 0.6; }

@keyframes auth-ring-pulse {
    0% { transform: scale(0.85); opacity: 0.7; }
    100% { transform: scale(1.15); opacity: 0; }
}

.ai-neural-core {
    width: 88px;
    height: 88px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 2;
    box-shadow: 0 8px 32px rgba(15, 23, 42, 0.2);
    animation: float 3s ease-in-out infinite;
}

.ai-core-label {
    font-size: 28px;
    font-weight: 900;
    background: var(--lm-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.ai-core-sub {
    font-size: 10px;
    color: var(--lm-text-muted);
    font-weight: 600;
    margin-top: 2px;
}

.ai-flow-lines {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.ai-flow-lines span {
    position: absolute;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.6), transparent);
    animation: ai-flow 2s ease-in-out infinite;
}

.ai-flow-lines span:nth-child(1) { top: 30%; left: 10%; transform: rotate(-20deg); animation-delay: 0s; }
.ai-flow-lines span:nth-child(2) { top: 50%; left: 5%; transform: rotate(10deg); animation-delay: 0.5s; }
.ai-flow-lines span:nth-child(3) { top: 70%; left: 12%; transform: rotate(-5deg); animation-delay: 1s; }
.ai-flow-lines span:nth-child(4) { top: 40%; right: 8%; transform: rotate(15deg); animation-delay: 0.3s; }

@keyframes ai-flow {
    0%, 100% { opacity: 0.2; transform: scaleX(0.5); }
    50% { opacity: 1; transform: scaleX(1); }
}

.ai-voice-wave {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3px;
    height: 36px;
    margin-bottom: 14px;
    position: relative;
    z-index: 1;
}

.ai-voice-wave span {
    display: block;
    width: 4px;
    height: 12px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.7);
    transform-origin: center bottom;
    animation: ai-voice-bar 1s ease-in-out infinite;
}

.ai-voice-wave span:nth-child(1) { animation-delay: 0s; }
.ai-voice-wave span:nth-child(2) { animation-delay: 0.08s; }
.ai-voice-wave span:nth-child(3) { animation-delay: 0.16s; }
.ai-voice-wave span:nth-child(4) { animation-delay: 0.04s; }
.ai-voice-wave span:nth-child(5) { animation-delay: 0.12s; }
.ai-voice-wave span:nth-child(6) { animation-delay: 0.2s; }
.ai-voice-wave span:nth-child(7) { animation-delay: 0.06s; }
.ai-voice-wave span:nth-child(8) { animation-delay: 0.14s; }
.ai-voice-wave span:nth-child(9) { animation-delay: 0.22s; }
.ai-voice-wave span:nth-child(10) { animation-delay: 0.1s; }
.ai-voice-wave span:nth-child(11) { animation-delay: 0.18s; }
.ai-voice-wave span:nth-child(12) { animation-delay: 0.02s; }
.ai-voice-wave span:nth-child(13) { animation-delay: 0.15s; }
.ai-voice-wave span:nth-child(14) { animation-delay: 0.09s; }
.ai-voice-wave span:nth-child(15) { animation-delay: 0.21s; }

@keyframes ai-voice-bar {
    0%, 100% { transform: scaleY(0.4); opacity: 0.5; }
    50% { transform: scaleY(1.4); opacity: 1; }
}

.ai-model-footer {
    display: flex;
    align-items: stretch;
    gap: 8px;
    position: relative;
    z-index: 1;
}

.ai-io-block {
    flex: 1;
    padding: 10px 12px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.ai-io-block small {
    display: block;
    font-size: 10px;
    opacity: 0.7;
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.ai-io-block p {
    font-size: 12px;
    line-height: 1.4;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ── 通用 SVG 图标 ── */
.icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    display: block;
}

.icon-sm {
    width: 16px;
    height: 16px;
}

.icon-inline {
    display: inline-flex;
    align-items: center;
    vertical-align: middle;
    color: inherit;
}

.icon-inline .icon {
    width: 16px;
    height: 16px;
}

.ai-compare-head .icon-inline,
.ai-compare-bad .icon-inline,
.ai-compare-good .icon-inline {
    margin-right: 6px;
}

.ai-compare-good .icon-inline {
    color: var(--lm-cyan-deep);
}

.ai-compare-bad .icon-inline {
    color: #ef4444;
}

.ai-io-arrow {
    display: flex;
    align-items: center;
    font-size: 18px;
    opacity: 0.7;
}

/* 对比表 */
.ai-compare-wrap {
    background: #fff;
    border-radius: 20px;
    padding: 32px;
    box-shadow: var(--lm-card-shadow);
    border: 1px solid rgba(226, 232, 240, 0.8);
}

.ai-compare-title {
    text-align: center;
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 24px;
}

.ai-compare-table {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.ai-compare-row {
    display: grid;
    grid-template-columns: 1fr 1.2fr 1.2fr;
    gap: 2px;
}

.ai-compare-cell {
    padding: 14px 16px;
    font-size: 14px;
    background: #f8fafc;
    color: var(--lm-text-muted);
}

.ai-compare-head .ai-compare-cell {
    background: rgba(6, 182, 212, 0.08);
    font-weight: 700;
    color: var(--lm-text-main);
    font-size: 13px;
    display: flex;
    align-items: center;
}

.ai-compare-bad {
    background: rgba(239, 68, 68, 0.04);
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px;
}

.ai-compare-good {
    background: rgba(6, 182, 212, 0.06);
    color: var(--lm-text-main);
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px;
}

.ai-compare-good strong {
    color: var(--lm-cyan-deep);
}

/* ── 平台插件区块 ── */
.plugins-section {
    background: rgba(255, 255, 255, 0.55);
}

.plugin-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px 12px;
    margin-bottom: 40px;
    padding: 24px;
    border-radius: 20px;
    background: #fff;
    box-shadow: var(--lm-card-shadow);
    border: 1px solid rgba(226, 232, 240, 0.8);
}

.plugin-flow-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    min-width: 100px;
    gap: 4px;
}

.plugin-flow-step strong {
    font-size: 14px;
    color: var(--lm-text-main);
}

.plugin-flow-step span:last-child {
    font-size: 12px;
    color: var(--lm-text-muted);
}

.plugin-flow-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.14), rgba(99, 102, 241, 0.12));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--lm-cyan-deep);
    margin-bottom: 4px;
}

.plugin-flow-icon .icon {
    width: 22px;
    height: 22px;
}

.plugin-flow-arrow {
    font-size: 20px;
    color: var(--lm-text-light);
    padding: 0 4px;
}

.plugin-platform-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 28px;
}

.plugin-platform-card {
    background: #fff;
    border-radius: var(--lm-card-radius);
    padding: 24px;
    box-shadow: var(--lm-card-shadow);
    border: 1px solid rgba(226, 232, 240, 0.8);
    transition: transform 0.3s, box-shadow 0.3s;
}

.plugin-platform-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(14, 116, 144, 0.12);
}

.plugin-platform-card--live {
    border-color: rgba(6, 182, 212, 0.35);
    background: linear-gradient(135deg, #fff 0%, rgba(240, 249, 255, 0.95) 100%);
}

.plugin-platform-head {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 12px;
}

.plugin-platform-logo {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.plugin-platform-logo img {
    width: 48px;
    height: 48px;
    display: block;
    border-radius: 12px;
    object-fit: contain;
}

.plugin-platform-logo--more {
    border-radius: 12px;
    border: 1px dashed rgba(6, 182, 212, 0.35);
    background: rgba(255, 255, 255, 0.8);
    color: var(--lm-text-muted);
}

.plugin-platform-logo--more .icon {
    width: 24px;
    height: 24px;
}

.plugin-platform-head h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 4px;
}

.plugin-status {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
}

.plugin-status--live {
    background: rgba(34, 197, 94, 0.12);
    color: #16a34a;
}

.plugin-status--soon {
    background: rgba(6, 182, 212, 0.1);
    color: var(--lm-cyan-deep);
}

.plugin-platform-card p {
    font-size: 13px;
    color: var(--lm-text-muted);
    line-height: 1.65;
    margin-bottom: 14px;
}

.plugin-platform-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
}

.plugin-platform-tags li {
    padding: 4px 10px;
    border-radius: 8px;
    font-size: 12px;
    background: rgba(6, 182, 212, 0.08);
    color: var(--lm-cyan-deep);
    font-weight: 500;
}

.plugin-highlight-box {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    padding: 28px;
    border-radius: 20px;
    background: var(--lm-gradient);
    color: #fff;
    box-shadow: 0 24px 48px rgba(14, 116, 144, 0.22);
}

.plugin-highlight-icon {
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.18);
    display: flex;
    align-items: center;
    justify-content: center;
}

.plugin-highlight-icon .icon {
    width: 26px;
    height: 26px;
    color: #fff;
}

.plugin-highlight-box h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
}

.plugin-highlight-box p {
    font-size: 14px;
    line-height: 1.7;
    opacity: 0.92;
}

/* ── 使用场景大图轮播 ── */
.scenarios-section {
    background: rgba(255, 255, 255, 0.5);
}

.scenario-showcase {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 32px;
    align-items: center;
}

.scenario-main-img {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    aspect-ratio: 16/10;
    box-shadow: var(--lm-card-shadow);
}

.scenario-main-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.scenario-main-img:hover img { transform: scale(1.04); }

.scenario-tabs {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.scenario-tab {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 18px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.7);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.3s;
    text-align: left;
}

.scenario-tab:hover {
    background: #fff;
    border-color: rgba(6, 182, 212, 0.2);
}

.scenario-tab.active {
    background: #fff;
    border-color: var(--lm-cyan);
    box-shadow: 0 8px 24px rgba(6, 182, 212, 0.12);
}

.scenario-tab-thumb {
    width: 64px;
    height: 48px;
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
}

.scenario-tab-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.scenario-tab h4 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 2px;
}

.scenario-tab p {
    font-size: 12px;
    color: var(--lm-text-muted);
}

/* ── 流程步骤 ── */
.steps-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    counter-reset: step;
}

.step-card {
    text-align: center;
    padding: 28px 16px;
    background: rgba(255, 255, 255, 0.75);
    border-radius: var(--lm-card-radius);
    box-shadow: var(--lm-card-shadow);
    position: relative;
}

.step-num {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--lm-gradient);
    color: #fff;
    font-size: 18px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    box-shadow: 0 6px 16px rgba(6, 182, 212, 0.35);
}

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

.step-card p {
    font-size: 13px;
    color: var(--lm-text-muted);
}

.steps-doc-hint {
    margin-top: 32px;
    padding: 20px 24px;
    border-radius: var(--lm-card-radius);
    background: rgba(255, 255, 255, 0.75);
    border: 1px solid rgba(6, 182, 212, 0.15);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 16px;
    text-align: center;
}

.steps-doc-hint p {
    margin: 0;
    font-size: 15px;
    color: var(--lm-text-muted);
}

/* ── 帮助文档 ── */
.docs-section {
    background: linear-gradient(180deg, rgba(6, 182, 212, 0.04) 0%, transparent 100%);
}

.docs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.doc-card {
    display: flex;
    flex-direction: column;
    padding: 32px 28px;
    background: rgba(255, 255, 255, 0.82);
    border-radius: var(--lm-card-radius);
    box-shadow: var(--lm-card-shadow);
    border: 1px solid rgba(255, 255, 255, 0.9);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.doc-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(6, 182, 212, 0.12);
}

.doc-card--accent {
    border-color: rgba(6, 182, 212, 0.2);
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.92) 0%, rgba(6, 182, 212, 0.06) 100%);
}

.doc-card-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(6, 182, 212, 0.12);
    color: var(--lm-cyan-deep);
    margin-bottom: 18px;
}

.doc-card h3 {
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 10px;
}

.doc-card > p {
    font-size: 14px;
    color: var(--lm-text-muted);
    line-height: 1.65;
    margin-bottom: 16px;
    flex: 1;
}

.doc-card-list {
    list-style: none;
    padding: 0;
    margin: 0 0 22px;
}

.doc-card-list li {
    position: relative;
    padding-left: 18px;
    font-size: 13px;
    color: var(--lm-text-muted);
    line-height: 1.8;
}

.doc-card-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.65em;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--lm-gradient);
}

.doc-card .btn {
    align-self: flex-start;
}

.download-doc-links {
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px dashed rgba(6, 182, 212, 0.2);
    font-size: 13px;
    color: var(--lm-text-muted);
    line-height: 1.6;
}

.download-doc-label {
    margin-right: 4px;
}

.download-doc-links a {
    color: var(--lm-cyan-deep);
    font-weight: 600;
    text-decoration: none;
}

.download-doc-links a:hover {
    text-decoration: underline;
}

.download-doc-sep {
    margin: 0 6px;
    color: var(--lm-text-light);
}

/* ── 数字计数器 ── */
.stats-bar {
    background: var(--lm-gradient);
    border-radius: 20px;
    padding: 40px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    text-align: center;
    color: #fff;
    box-shadow: 0 24px 48px rgba(14, 116, 144, 0.25);
}

.stat-item strong {
    display: block;
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 4px;
}

.stat-item span {
    font-size: 14px;
    opacity: 0.88;
}

/* ── 下载 & 客服 ── */
.download-section {
    background: rgba(255, 255, 255, 0.6);
}

.download-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: start;
}

.download-card, .contact-card {
    background: #fff;
    border-radius: 20px;
    padding: 36px;
    box-shadow: var(--lm-card-shadow);
    border: 1px solid rgba(226, 232, 240, 0.8);
}

.download-card h3, .contact-card h3 {
    font-size: 22px;
    font-weight: 800;
    margin-bottom: 8px;
}

.download-card > p, .contact-card > p {
    color: var(--lm-text-muted);
    font-size: 14px;
    margin-bottom: 24px;
}

.download-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 24px;
}

.download-tag {
    padding: 6px 14px;
    border-radius: 8px;
    background: rgba(6, 182, 212, 0.08);
    font-size: 13px;
    color: var(--lm-cyan-deep);
    font-weight: 500;
}

.download-link-box {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border-radius: 12px;
    background: #f8fafc;
    border: 1px dashed rgba(6, 182, 212, 0.35);
    margin-bottom: 20px;
    font-size: 13px;
    color: var(--lm-text-muted);
    word-break: break-all;
}

.qr-wrap {
    text-align: center;
}

.qr-box {
    width: 200px;
    height: 200px;
    margin: 0 auto 16px;
    border-radius: 14px;
    overflow: hidden;
    border: 2px solid rgba(6, 182, 212, 0.2);
    background: #f8fafc;
    padding: 8px;
}

.qr-box img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.qr-hint {
    font-size: 13px;
    color: var(--lm-text-muted);
}

/* ── FAQ (SEO) ── */
.faq-list {
    max-width: 760px;
    margin: 0 auto;
}

.faq-item {
    background: #fff;
    border-radius: 14px;
    margin-bottom: 12px;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
    border: 1px solid rgba(226, 232, 240, 0.8);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 18px 22px;
    background: none;
    border: none;
    font-size: 15px;
    font-weight: 600;
    color: var(--lm-text-main);
    cursor: pointer;
    text-align: left;
    font-family: inherit;
}

.faq-question svg {
    flex-shrink: 0;
    transition: transform 0.3s;
}

.faq-item.open .faq-question svg { transform: rotate(180deg); }

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}

.faq-answer-inner {
    padding: 0 22px 18px;
    font-size: 14px;
    color: var(--lm-text-muted);
    line-height: 1.7;
}

.faq-item.open .faq-answer { max-height: 400px; }

/* ── Footer ── */
.site-footer {
    position: relative;
    z-index: 1;
    padding: 48px 0 32px;
    border-top: 1px solid rgba(6, 182, 212, 0.12);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 32px;
}

.footer-brand p {
    font-size: 14px;
    color: var(--lm-text-muted);
    margin-top: 12px;
    max-width: 320px;
}

.footer-col h4 {
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 14px;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 8px;
}

.footer-col a {
    font-size: 13px;
    color: var(--lm-text-muted);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    padding-top: 24px;
    border-top: 1px solid rgba(226, 232, 240, 0.8);
    font-size: 13px;
    color: var(--lm-text-light);
}

/* ── 滚动显现动画 ── */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── 关键帧 ── */
@keyframes fade-up {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes live-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.35; }
}

@keyframes progress-fill {
    from { width: 0%; }
    to { width: 100%; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* ── Hero 助手预览 ── */
.hero-assistants-preview {
    position: relative;
}

.hero-assistants-stack {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.hero-assistant-chip {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid rgba(226, 232, 240, 0.9);
    box-shadow: var(--lm-card-shadow);
    backdrop-filter: blur(8px);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    min-width: 0;
}

.hero-assistant-chip:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(14, 116, 144, 0.14);
}

.hero-assistant-chip--mystery {
    grid-column: 1 / -1;
    opacity: 0.72;
    border-style: dashed;
    cursor: default;
    max-width: 100%;
}

.hero-assistant-chip--mystery:hover {
    transform: none;
    box-shadow: var(--lm-card-shadow);
}

.hero-assistant-chip img {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    object-fit: cover;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.08);
    border: 1px solid rgba(15, 23, 42, 0.06);
    flex-shrink: 0;
}

.hero-assistant-chip .hero-assistant-mystery-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    flex-shrink: 0;
    background: rgba(148, 163, 184, 0.16);
    color: #94a3b8;
    border: 1px solid rgba(15, 23, 42, 0.06);
    box-shadow: none;
    line-height: 0;
    overflow: hidden;
}

.hero-assistant-chip .hero-assistant-mystery-avatar .icon,
.hero-assistant-chip .hero-assistant-mystery-avatar svg {
    display: block;
    width: 22px;
    height: 22px;
    margin: 0;
    flex-shrink: 0;
}

.hero-assistant-chip strong {
    display: block;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.hero-assistant-chip > div span {
    display: block;
    font-size: 12px;
    color: var(--lm-text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

@media (max-width: 560px) {
    .hero-assistants-stack {
        grid-template-columns: 1fr;
    }

    .hero-assistant-chip--mystery {
        grid-column: auto;
    }
}

.hero-assistants-hint {
    margin-top: 16px;
    text-align: center;
    font-size: 13px;
    color: var(--lm-text-muted);
}

.hero-assistants-hint a {
    color: var(--lm-cyan-deep);
    font-weight: 600;
    text-decoration: none;
}

.hero-assistants-hint a:hover {
    text-decoration: underline;
}

/* ── 产品演示（WorkBuddy 风格窗口壳） ── */
.product-demo {
    padding: 24px 0 72px;
    position: relative;
}

.demo-shell-wrapper {
    position: relative;
    max-width: 1080px;
    margin: 0 auto;
}

.demo-shell-glow {
    position: absolute;
    inset: 8% 6% -4%;
    background:
        radial-gradient(ellipse at 30% 20%, rgba(6, 182, 212, 0.28), transparent 55%),
        radial-gradient(ellipse at 75% 80%, rgba(139, 92, 246, 0.22), transparent 50%);
    filter: blur(28px);
    z-index: 0;
    pointer-events: none;
}

.demo-tabs {
    position: relative;
    z-index: 2;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 18px;
}

.demo-tab {
    appearance: none;
    border: 1px solid rgba(226, 232, 240, 0.95);
    background: rgba(255, 255, 255, 0.88);
    color: var(--lm-text-muted);
    font: inherit;
    font-size: 14px;
    font-weight: 700;
    padding: 10px 18px;
    border-radius: 999px;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
    transition: color 0.2s, background 0.2s, border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.demo-tab:hover {
    transform: translateY(-1px);
    color: var(--lm-text-main);
    border-color: rgba(6, 182, 212, 0.35);
}

.demo-tab.active {
    color: #fff;
    background: linear-gradient(135deg, #06b6d4, #3b82f6 55%, #8b5cf6);
    border-color: transparent;
    box-shadow: 0 10px 24px rgba(59, 130, 246, 0.28);
}

.demo-shell {
    position: relative;
    z-index: 1;
    margin: 0;
    border-radius: 18px;
    overflow: hidden;
    background: #fff;
    border: 1px solid rgba(148, 163, 184, 0.35);
    box-shadow:
        0 4px 6px rgba(15, 23, 42, 0.04),
        0 24px 64px rgba(14, 116, 144, 0.16),
        0 48px 96px rgba(99, 102, 241, 0.1);
}

.demo-viewport {
    position: relative;
    background: #f8fafc;
}

.demo-slide {
    display: block;
    width: 100%;
    height: auto;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s ease;
    position: absolute;
    inset: 0;
}

.demo-slide.active {
    position: relative;
    opacity: 1;
    visibility: visible;
}

.demo-shell-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    height: 42px;
    padding: 0 16px;
    background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
    border-bottom: 1px solid rgba(226, 232, 240, 0.95);
}

.demo-shell-dots {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}

.demo-shell-dots i {
    display: block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #cbd5e1;
}

.demo-shell-dots i:nth-child(1) { background: #f87171; }
.demo-shell-dots i:nth-child(2) { background: #fbbf24; }
.demo-shell-dots i:nth-child(3) { background: #34d399; }

.demo-shell-title {
    flex: 1;
    text-align: center;
    font-size: 12px;
    font-weight: 600;
    color: #64748b;
    letter-spacing: 0.02em;
    margin-right: 48px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.demo-caption-tags {
    position: relative;
    z-index: 1;
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-top: 22px;
    padding: 0;
}

.demo-caption-tags li {
    font-size: 13px;
    font-weight: 600;
    color: var(--lm-text-muted);
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(226, 232, 240, 0.9);
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
}

/* ── 传统 vs Cowork 对比 ── */
.compare-duo {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.compare-panel {
    border-radius: var(--lm-card-radius);
    padding: 28px 26px;
    box-shadow: var(--lm-card-shadow);
}

.compare-panel h3 {
    font-size: 18px;
    font-weight: 800;
    margin-bottom: 16px;
}

.compare-panel ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.compare-panel li {
    font-size: 14px;
    line-height: 1.6;
    padding-left: 18px;
    position: relative;
    color: var(--lm-text-muted);
}

.compare-panel li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 7px;
    height: 7px;
    border-radius: 50%;
}

.compare-panel--old {
    background: #fff;
    border: 1px solid rgba(226, 232, 240, 0.9);
}

.compare-panel--old h3 { color: var(--lm-text-muted); }
.compare-panel--old li::before { background: #cbd5e1; }

.compare-panel--new {
    background: linear-gradient(135deg, rgba(255,255,255,1) 0%, rgba(240,249,255,0.95) 100%);
    border: 1.5px solid rgba(6, 182, 212, 0.35);
}

.compare-panel--new h3 {
    background: var(--lm-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.compare-panel--new li { color: var(--lm-text-main); }
.compare-panel--new li::before { background: var(--lm-cyan); }

/* ── 助手卡片 ── */
.assistants-section {
    background: rgba(255, 255, 255, 0.5);
}

.assistants-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

@media (min-width: 1100px) {
    .assistants-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.assistants-mystery-row {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}

.assistants-mystery-row .assistant-card {
    width: 100%;
    max-width: 360px;
}

.assistant-card {
    background: #fff;
    border-radius: 18px;
    padding: 26px 22px;
    border: 1px solid rgba(226, 232, 240, 0.85);
    box-shadow: var(--lm-card-shadow);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.assistant-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 22px 44px rgba(14, 116, 144, 0.14);
}

.assistant-card--default {
    border-color: rgba(245, 158, 11, 0.45);
    background: linear-gradient(160deg, rgba(255,251,235,0.55) 0%, #fff 42%);
    box-shadow: 0 16px 40px rgba(245, 158, 11, 0.08), var(--lm-card-shadow);
}

.assistant-card--mystery {
    opacity: 0.78;
    border-style: dashed;
    background: rgba(248, 250, 252, 0.9);
    cursor: default;
}

.assistant-card--mystery:hover {
    transform: none;
    box-shadow: var(--lm-card-shadow);
}

.assistant-avatar--mystery {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(148, 163, 184, 0.16);
    color: #94a3b8;
    box-shadow: none;
    line-height: 0;
    overflow: hidden;
}

.assistant-avatar--mystery .icon,
.assistant-avatar--mystery svg {
    display: block;
    width: 32px;
    height: 32px;
    margin: 0;
}

.assistant-soon-badge {
    padding: 4px 10px;
    border-radius: 8px;
    font-size: 11px;
    font-weight: 700;
    background: rgba(148, 163, 184, 0.18);
    color: #64748b;
}

.assistant-card--mystery .assistant-tags span {
    background: rgba(148, 163, 184, 0.16);
    color: #64748b;
}

.assistant-card-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 16px;
}

.assistant-avatar {
    width: 72px;
    height: 72px;
    border-radius: 16px;
    object-fit: cover;
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.1);
    border: 1px solid rgba(15, 23, 42, 0.06);
}

.assistant-default-badge {
    padding: 4px 10px;
    border-radius: 8px;
    font-size: 11px;
    font-weight: 700;
    background: rgba(245, 158, 11, 0.12);
    color: #b45309;
}

.assistant-card h3 {
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 8px;
}

.assistant-role {
    font-size: 13px;
    font-weight: 600;
    color: var(--lm-text-muted);
    margin-left: 6px;
}

.assistant-quote {
    font-size: 14px;
    color: var(--lm-text-muted);
    line-height: 1.55;
    margin-bottom: 14px;
    font-style: italic;
}

.assistant-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 14px;
}

.assistant-tags span {
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    background: rgba(6, 182, 212, 0.1);
    color: var(--lm-cyan-deep);
}

.assistant-tags span:first-child {
    background: rgba(16, 185, 129, 0.12);
    color: #047857;
}

.assistant-skills {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-top: 12px;
    border-top: 1px dashed rgba(6, 182, 212, 0.2);
}

.assistant-skills li {
    font-size: 13px;
    color: var(--lm-text-muted);
    padding-left: 14px;
    position: relative;
}

.assistant-skills li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--lm-cyan);
}

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

/* ── 定价（参考 WorkBuddy 三栏卡） ── */
.pricing-section {
    background: rgba(255, 255, 255, 0.55);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    align-items: stretch;
}

.pricing-card {
    position: relative;
    display: flex;
    flex-direction: column;
    background: #fff;
    border-radius: 20px;
    padding: 28px 24px 24px;
    border: 1px solid rgba(226, 232, 240, 0.9);
    box-shadow: var(--lm-card-shadow);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 22px 48px rgba(14, 116, 144, 0.14);
}

.pricing-card--featured {
    border: 2px solid transparent;
    background:
        linear-gradient(#fff, #fff) padding-box,
        var(--lm-gradient) border-box;
    box-shadow: 0 24px 48px rgba(99, 102, 241, 0.16);
    transform: scale(1.02);
}

.pricing-card--featured:hover {
    transform: scale(1.02) translateY(-4px);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 14px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    color: #fff;
    background: var(--lm-btn-gradient);
    box-shadow: 0 6px 16px rgba(6, 182, 212, 0.35);
}

.pricing-card-head h3 {
    font-size: 22px;
    font-weight: 800;
    margin-bottom: 6px;
}

.pricing-desc {
    font-size: 13px;
    color: var(--lm-text-muted);
    line-height: 1.5;
    min-height: 40px;
}

.pricing-price {
    display: flex;
    align-items: baseline;
    gap: 6px;
    margin: 20px 0 8px;
}

.pricing-amount {
    font-size: 42px;
    font-weight: 800;
    line-height: 1;
    background: var(--lm-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.pricing-period {
    font-size: 14px;
    color: var(--lm-text-muted);
    font-weight: 500;
}

.pricing-credits {
    font-size: 13px;
    color: var(--lm-text-muted);
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(226, 232, 240, 0.9);
}

.pricing-credits strong {
    color: var(--lm-cyan-deep);
}

.pricing-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 1;
    margin-bottom: 24px;
}

.pricing-features li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    color: var(--lm-text-main);
    line-height: 1.45;
}

.pricing-features li [data-icon] {
    flex-shrink: 0;
    margin-top: 2px;
    color: var(--lm-cyan-deep);
}

.pricing-cta {
    width: 100%;
}

.pricing-footnote {
    margin-top: 28px;
    text-align: center;
    font-size: 13px;
    color: var(--lm-text-muted);
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

/* ── 浮动粒子背景（已有）之上：响应式补充 ── */
@media (max-width: 960px) {
    .compare-duo,
    .assistants-grid,
    .pricing-grid,
    .features-grid--3 {
        grid-template-columns: 1fr;
    }

    .pricing-card--featured {
        transform: none;
    }

    .pricing-card--featured:hover {
        transform: translateY(-4px);
    }
}

.floating { animation: float 3s ease-in-out infinite; }

/* ── 响应式 ── */
@media (max-width: 960px) {
    .hero-grid,
    .scenario-showcase,
    .download-grid,
    .docs-grid,
    .features-grid,
    .ai-engine-grid,
    .plugin-platform-grid { grid-template-columns: 1fr; }

    .plugin-flow-arrow { display: none; }
    .plugin-highlight-box { flex-direction: column; }

    .ai-compare-row {
        grid-template-columns: 1fr;
    }

    .ai-compare-head { display: none; }

    .ai-compare-row:not(.ai-compare-head) {
        border-radius: 12px;
        overflow: hidden;
        margin-bottom: 12px;
        border: 1px solid rgba(226, 232, 240, 0.8);
    }

    .ai-compare-row:not(.ai-compare-head) .ai-compare-cell:first-child {
        background: rgba(6, 182, 212, 0.1);
        font-weight: 700;
        color: var(--lm-text-main);
    }

    .pain-grid { grid-template-columns: 1fr; }
    .product-demo { padding-bottom: 48px; }
    .demo-shell { border-radius: 14px; }
    .demo-shell-title { margin-right: 0; font-size: 11px; }
    .demo-tabs { gap: 8px; margin-bottom: 14px; }
    .demo-tab { font-size: 13px; padding: 8px 14px; }
    .demo-caption-tags { gap: 8px; }
    .demo-caption-tags li { font-size: 12px; padding: 6px 12px; }
    .steps-row { grid-template-columns: repeat(2, 1fr); }
    .stats-bar { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr; }

    .nav-links {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(240, 249, 255, 0.95);
        backdrop-filter: blur(12px);
        padding: 20px;
        gap: 16px;
        transform: translateY(-120%);
        opacity: 0;
        transition: transform 0.3s, opacity 0.3s;
        box-shadow: 0 8px 24px rgba(14, 116, 144, 0.1);
    }

    .nav-links.open {
        transform: translateY(0);
        opacity: 1;
    }

    .nav-toggle { display: flex; }
}

@media (max-width: 560px) {
    .steps-row { grid-template-columns: 1fr; }
    .hero-stats { flex-direction: column; gap: 16px; }
    .stats-bar { grid-template-columns: 1fr; }
}