* { margin: 0; padding: 0; box-sizing: border-box; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            background: #0f0f1a;
            color: #fff;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        /* === 全局通用 === */
        .section {
            max-width: 1400px;
            margin: 0 auto;
            padding: 100px 40px;
        }
        .section-header {
            text-align: center;
            margin-bottom: 64px;
        }
        .section-header h2 {
            font-size: 36px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .section-header h2 span {
            color: #ff4757;
        }
        .section-header h2 .purple {
            color: #a29bfe;
        }
        .section-header h2 .gold {
            color: #ffa502;
        }
        .section-header h2 .cyan {
            color: #00d2d3;
        }
        .section-header p {
            font-size: 16px;
            color: rgba(255,255,255,0.55);
            line-height: 1.8;
            max-width: 700px;
            margin: 0 auto;
        }
        .accent-tag {
            display: inline-block;
            background: linear-gradient(135deg, #ff4757, #ff6348);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .accent-tag.purple {
            background: linear-gradient(135deg, #6c5ce7, #a29bfe);
        }
        .accent-tag.gold {
            background: linear-gradient(135deg, #ffa502, #ff6348);
        }
        .accent-tag.cyan {
            background: linear-gradient(135deg, #00d2d3, #01a3a4);
        }

        /* === Hero Section === */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: #0f0f1a;
            z-index: 0;
        }
        /* 动态渐变光斑 */
        .hero-blob {
            position: absolute;
            border-radius: 50%;
            filter: blur(80px);
            z-index: 1;
            animation: blobFloat 8s ease-in-out infinite;
        }
        .hero-blob-1 {
            width: 400px; height: 400px;
            background: rgba(255,71,87,0.12);
            top: 10%; left: 15%;
            animation-delay: 0s;
        }
        .hero-blob-2 {
            width: 350px; height: 350px;
            background: rgba(108,92,231,0.1);
            top: 50%; right: 10%;
            animation-delay: -3s;
        }
        .hero-blob-3 {
            width: 280px; height: 280px;
            background: rgba(255,165,2,0.08);
            bottom: 15%; left: 30%;
            animation-delay: -5s;
        }
        @keyframes blobFloat {
            0%, 100% { transform: translate(0, 0) scale(1); }
            33% { transform: translate(30px, -20px) scale(1.1); }
            66% { transform: translate(-20px, 15px) scale(0.95); }
        }
        /* 网格纹理 */
        .hero-grid-pattern {
            position: absolute;
            inset: 0;
            background-image:
                linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
            background-size: 60px 60px;
            z-index: 2;
        }
        .hero-content {
            position: relative;
            z-index: 10;
            text-align: center;
            max-width: 1000px;
            padding: 0 40px;
        }
        /* 顶部导航条 */
        .hero-top-bar {
            position: absolute;
            top: 0; left: 0; right: 0;
            z-index: 20;
            padding: 24px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .hero-top-bar img {
            height: 32px;
        }
        .hero-top-links {
            display: flex;
            gap: 24px;
            font-size: 14px;
            color: rgba(255,255,255,0.5);
        }
        .hero-top-links a {
            color: rgba(255,255,255,0.5);
            text-decoration: none;
            transition: color 0.3s;
        }
        .hero-top-links a:hover { color: #fff; }
        /* 标识徽章 */
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,71,87,0.15);
            border: 1px solid rgba(255,71,87,0.25);
            color: #ff4757;
            font-size: 12px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 24px;
            backdrop-filter: blur(10px);
            letter-spacing: 0.5px;
        }
        .hero-badge .live-dot {
            width: 6px;
            height: 6px;
            background: #ff4757;
            border-radius: 50%;
            animation: livePulse 1.5s ease-in-out infinite;
        }
        @keyframes livePulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.4; transform: scale(1.8); }
        }
        /* 主标题 - 简洁有力 */
        .hero-title {
            font-size: 48px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -1px;
        }
        .hero-title .gradient-text {
            background: linear-gradient(135deg, #ff4757 0%, #ffa502 50%, #a29bfe 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-tagline {
            font-size: 18px;
            color: rgba(255,255,255,0.6);
            line-height: 1.6;
            margin-bottom: 40px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            font-weight: 400;
        }
        .hero-tagline strong {
            color: rgba(255,255,255,0.85);
            font-weight: 600;
        }
        /* 五环流程可视化 */
        .hero-cycle {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0;
            margin-bottom: 48px;
            position: relative;
        }
        .hero-cycle-node {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            text-align: center;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .hero-cycle-node:hover {
            transform: scale(1.08);
        }
        .cycle-icon {
            font-size: 24px;
            margin-bottom: 4px;
        }
        .cycle-label {
            font-size: 13px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 2px;
        }
        .cycle-sublabel {
            font-size: 10px;
            color: rgba(255,255,255,0.4);
            font-weight: 400;
        }
        .cycle-connector {
            width: 48px;
            height: 2px;
            background: rgba(255,255,255,0.12);
            position: relative;
            flex-shrink: 0;
        }
        .cycle-connector::after {
            content: '';
            position: absolute;
            right: -4px;
            top: -3px;
            width: 8px;
            height: 8px;
            border-right: 2px solid rgba(255,255,255,0.15);
            border-top: 2px solid rgba(255,255,255,0.15);
            transform: rotate(45deg);
        }
        /* 五环颜色 */
        .cn-red {
            background: radial-gradient(circle, rgba(255,71,87,0.18), rgba(255,71,87,0.06));
            border: 2px solid rgba(255,71,87,0.3);
            box-shadow: 0 0 40px rgba(255,71,87,0.08);
        }
        .cn-red:hover { box-shadow: 0 0 60px rgba(255,71,87,0.15); }
        .cn-purple {
            background: radial-gradient(circle, rgba(108,92,231,0.18), rgba(108,92,231,0.06));
            border: 2px solid rgba(108,92,231,0.3);
            box-shadow: 0 0 40px rgba(108,92,231,0.08);
        }
        .cn-purple:hover { box-shadow: 0 0 60px rgba(108,92,231,0.15); }
        .cn-gold {
            background: radial-gradient(circle, rgba(255,165,2,0.18), rgba(255,165,2,0.06));
            border: 2px solid rgba(255,165,2,0.3);
            box-shadow: 0 0 40px rgba(255,165,2,0.08);
        }
        .cn-gold:hover { box-shadow: 0 0 60px rgba(255,165,2,0.15); }
        .cn-cyan {
            background: radial-gradient(circle, rgba(0,210,211,0.18), rgba(0,210,211,0.06));
            border: 2px solid rgba(0,210,211,0.3);
            box-shadow: 0 0 40px rgba(0,210,211,0.08);
        }
        .cn-cyan:hover { box-shadow: 0 0 60px rgba(0,210,211,0.15); }
        .cn-green {
            background: radial-gradient(circle, rgba(46,213,115,0.18), rgba(46,213,115,0.06));
            border: 2px solid rgba(46,213,115,0.3);
            box-shadow: 0 0 40px rgba(46,213,115,0.08);
        }
        .cn-green:hover { box-shadow: 0 0 60px rgba(46,213,115,0.15); }
        /* 数据贯穿提示 */
        .hero-data-bar {
            text-align: center;
            margin-top: 8px;
            font-size: 12px;
            color: rgba(255,255,255,0.35);
            font-weight: 500;
            letter-spacing: 0.5px;
        }
        .hero-data-bar span {
            color: rgba(255,165,2,0.6);
        }
        /* 数据指标条 */
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .hero-stat {
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: 14px;
            padding: 20px 14px;
            text-align: center;
            backdrop-filter: blur(10px);
            transition: transform 0.3s ease, border-color 0.3s ease;
        }
        .hero-stat:hover {
            transform: translateY(-2px);
            border-color: rgba(255,255,255,0.15);
        }
        .hero-stat .number {
            font-size: 28px;
            font-weight: 800;
            color: #ff4757;
            margin-bottom: 2px;
        }
        .hero-stat .number.purple { color: #a29bfe; }
        .hero-stat .number.cyan { color: #00d2d3; }
        .hero-stat .number.gold { color: #ffa502; }
        .hero-stat .label {
            font-size: 12px;
            color: rgba(255,255,255,0.45);
            line-height: 1.5;
        }
        .hero-stat .source {
            font-size: 10px;
            color: rgba(255,255,255,0.25);
            margin-top: 2px;
        }

        /* === 痛点 Section === */
        .pain-bg {
            background: linear-gradient(180deg, #0f0f1a 0%, #1c1c32 100%);
        }
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-bottom: 60px;
        }
        .pain-card {
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: 20px;
            padding: 32px 24px;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
        }
        .pain-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, #ff4757, #ff6348);
            opacity: 0;
            transition: opacity 0.4s ease;
        }
        .pain-card:hover::before { opacity: 1; }
        .pain-card:hover {
            border-color: rgba(255,71,87,0.2);
            transform: translateY(-4px);
            box-shadow: 0 12px 40px rgba(255,71,87,0.08);
        }
        .pain-icon {
            width: 52px;
            height: 52px;
            background: rgba(255,71,87,0.12);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 20px;
        }
        .pain-card h4 {
            font-size: 17px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
        }
        .pain-card p {
            font-size: 14px;
            color: rgba(255,255,255,0.5);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .pain-data {
            background: rgba(255,71,87,0.08);
            border-radius: 10px;
            padding: 12px 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .pain-data .data-val {
            font-size: 22px;
            font-weight: 700;
            color: #ff4757;
        }
        .pain-data .data-label {
            font-size: 12px;
            color: rgba(255,255,255,0.5);
        }
        .pain-solution {
            margin-top: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
        }
        .pain-solution .arrow-label {
            font-size: 14px;
            color: rgba(255,255,255,0.4);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .pain-solution .solution-box {
            background: linear-gradient(135deg, rgba(108,92,231,0.15), rgba(232,67,147,0.1));
            border: 1px solid rgba(108,92,231,0.2);
            border-radius: 16px;
            padding: 20px 32px;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            text-align: center;
        }

        /* === 核心引擎：五环增长模型 === */
        .engine-bg {
            background: linear-gradient(180deg, #151528 0%, #0d0d1e 100%);
        }
        .engine-flow {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 0;
            margin-bottom: 60px;
            flex-wrap: wrap;
        }
        .engine-ring {
            width: 180px;
            height: 180px;
            border-radius: 50%;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            position: relative;
            text-align: center;
            flex-shrink: 0;
        }
        .engine-ring.ring-red {
            background: radial-gradient(circle, rgba(255,71,87,0.15), rgba(255,71,87,0.05));
            border: 2px solid rgba(255,71,87,0.3);
        }
        .engine-ring.ring-purple {
            background: radial-gradient(circle, rgba(108,92,231,0.15), rgba(108,92,231,0.05));
            border: 2px solid rgba(108,92,231,0.3);
        }
        .engine-ring.ring-gold {
            background: radial-gradient(circle, rgba(255,165,2,0.15), rgba(255,165,2,0.05));
            border: 2px solid rgba(255,165,2,0.3);
        }
        .engine-ring.ring-cyan {
            background: radial-gradient(circle, rgba(0,210,211,0.15), rgba(0,210,211,0.05));
            border: 2px solid rgba(0,210,211,0.3);
        }
        .engine-ring.ring-green {
            background: radial-gradient(circle, rgba(46,213,115,0.15), rgba(46,213,115,0.05));
            border: 2px solid rgba(46,213,115,0.3);
        }
        .engine-ring .ring-icon { font-size: 32px; margin-bottom: 8px; }
        .engine-ring .ring-title { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 4px; }
        .engine-ring .ring-sub { font-size: 11px; color: rgba(255,255,255,0.5); }
        .engine-connector {
            width: 40px;
            height: 2px;
            background: rgba(255,255,255,0.15);
            position: relative;
            flex-shrink: 0;
        }
        .engine-connector::after {
            content: '→';
            position: absolute;
            top: -8px;
            right: -4px;
            color: rgba(255,255,255,0.3);
            font-size: 14px;
        }

        /* === 五环展示区 - 左右交叉布局 === */
        .engine-showcase {
            display: flex;
            align-items: center;
            gap: 80px;
            margin-bottom: 48px;
            padding: 40px 32px;
            background: rgba(255,255,255,0.03);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: 24px;
            position: relative;
            overflow: hidden;
        }
        .engine-showcase::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            border-radius: 24px 24px 0 0;
        }
        .engine-showcase:nth-of-type(1)::before { background: linear-gradient(90deg, #ff4757, #ff6348); }
        .engine-showcase:nth-of-type(2)::before { background: linear-gradient(90deg, #6c5ce7, #a29bfe); }
        .engine-showcase:nth-of-type(3)::before { background: linear-gradient(90deg, #ffa502, #ff6348); }
        .engine-showcase:nth-of-type(4)::before { background: linear-gradient(90deg, #00d2d3, #01a3a4); }
        .engine-showcase:nth-of-type(5)::before { background: linear-gradient(90deg, #2ed573, #7bed9f); }
        .engine-showcase.reverse {
            flex-direction: row-reverse;
        }
        .engine-showcase-text {
            flex: 1.1;
            min-width: 0;
        }
        .engine-showcase-visual {
            flex: 0.9;
            min-width: 0;
        }
        .es-step-label {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            font-weight: 700;
            padding: 8px 18px;
            border-radius: 24px;
            margin-bottom: 20px;
        }
        .es-step-label.step-red {
            background: rgba(255,71,87,0.12);
            color: #ff4757;
            border: 1px solid rgba(255,71,87,0.2);
        }
        .es-step-label.step-purple {
            background: rgba(108,92,231,0.12);
            color: #a29bfe;
            border: 1px solid rgba(108,92,231,0.2);
        }
        .es-step-label.step-gold {
            background: rgba(255,165,2,0.12);
            color: #ffa502;
            border: 1px solid rgba(255,165,2,0.2);
        }
        .es-step-label.step-cyan {
            background: rgba(0,210,211,0.12);
            color: #00d2d3;
            border: 1px solid rgba(0,210,211,0.2);
        }
        .es-step-label.step-green {
            background: rgba(46,213,115,0.12);
            color: #2ed573;
            border: 1px solid rgba(46,213,115,0.2);
        }
        .es-title {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .es-desc {
            font-size: 16px;
            color: rgba(255,255,255,0.55);
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .es-feature-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .es-feature-list li {
            font-size: 15px;
            color: rgba(255,255,255,0.75);
            line-height: 1.6;
            padding: 8px 0;
            display: flex;
            align-items: flex-start;
            gap: 12px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .es-feature-list li:last-child { border-bottom: none; }
        .es-feature-list li .feat-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            flex-shrink: 0;
            margin-top: 6px;
        }
        .feat-dot.red { background: #ff4757; }
        .feat-dot.purple { background: #a29bfe; }
        .feat-dot.gold { background: #ffa502; }
        .feat-dot.cyan { background: #00d2d3; }
        .feat-dot.green { background: #2ed573; }
        .es-data-highlight {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: 12px;
            padding: 10px 16px;
            margin-top: 16px;
            font-size: 14px;
            color: rgba(255,255,255,0.5);
        }
        .es-data-highlight .dh-val {
            font-size: 18px;
            font-weight: 700;
        }

        /* === Mockup 视觉素材通用样式 === */
        .mockup-frame {
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: 20px;
            padding: 24px;
            position: relative;
            overflow: hidden;
        }
        .mockup-frame::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            border-radius: 20px 20px 0 0;
        }
        .mockup-frame.mf-red::before { background: linear-gradient(90deg, #ff4757, #ff6348); }
        .mockup-frame.mf-purple::before { background: linear-gradient(90deg, #6c5ce7, #a29bfe); }
        .mockup-frame.mf-gold::before { background: linear-gradient(90deg, #ffa502, #ff6348); }
        .mockup-frame.mf-cyan::before { background: linear-gradient(90deg, #00d2d3, #01a3a4); }
        .mockup-frame.mf-green::before { background: linear-gradient(90deg, #2ed573, #7bed9f); }

        /* 手机端Mockup */
        .phone-mockup {
            width: 280px;
            height: 500px;
            background: #1a1a2e;
            border: 2px solid rgba(255,255,255,0.15);
            border-radius: 32px;
            margin: 0 auto;
            padding: 12px;
            position: relative;
            overflow: hidden;
        }
        .phone-mockup .phone-notch {
            width: 80px;
            height: 18px;
            background: #0f0f1a;
            border-radius: 12px;
            margin: 0 auto 8px;
        }
        .phone-mockup .phone-screen {
            background: #1a1a2e;
            border-radius: 20px;
            height: calc(100% - 26px);
            overflow: hidden;
            padding: 12px;
        }

        /* 电脑端Mockup */
        .desktop-mockup {
            width: 100%;
            max-width: 420px;
            background: #1a1a2e;
            border: 1px solid rgba(255,255,255,0.12);
            border-radius: 12px;
            margin: 0 auto;
            overflow: hidden;
        }
        .desktop-mockup .dm-toolbar {
            height: 32px;
            background: rgba(255,255,255,0.06);
            display: flex;
            align-items: center;
            padding: 0 12px;
            gap: 6px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .desktop-mockup .dm-toolbar .dm-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
        }
        .desktop-mockup .dm-toolbar .dm-dot.r { background: #ff4757; }
        .desktop-mockup .dm-toolbar .dm-dot.y { background: #ffa502; }
        .desktop-mockup .dm-toolbar .dm-dot.g { background: #2ed573; }
        .desktop-mockup .dm-toolbar .dm-title {
            font-size: 11px;
            color: rgba(255,255,255,0.4);
            margin-left: 8px;
        }
        .desktop-mockup .dm-body {
            padding: 16px;
            min-height: 260px;
        }

        /* Mockup内部组件样式 */
        .m-card {
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: 10px;
            padding: 10px 12px;
            margin-bottom: 8px;
        }
        .m-card:last-child { margin-bottom: 0; }
        .m-row {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .m-avatar {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(255,255,255,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
        }
        .m-text-sm {
            font-size: 11px;
            color: rgba(255,255,255,0.5);
            line-height: 1.4;
        }
        .m-text-md {
            font-size: 13px;
            color: rgba(255,255,255,0.75);
            line-height: 1.5;
        }
        .m-badge {
            font-size: 10px;
            font-weight: 600;
            padding: 2px 8px;
            border-radius: 10px;
            display: inline-block;
        }
        .m-badge-red { background: rgba(255,71,87,0.2); color: #ff4757; }
        .m-badge-purple { background: rgba(108,92,231,0.2); color: #a29bfe; }
        .m-badge-gold { background: rgba(255,165,2,0.2); color: #ffa502; }
        .m-badge-cyan { background: rgba(0,210,211,0.2); color: #00d2d3; }
        .m-badge-green { background: rgba(46,213,115,0.2); color: #2ed573; }
        .m-btn {
            font-size: 11px;
            padding: 6px 14px;
            border-radius: 16px;
            font-weight: 600;
            display: inline-block;
        }
        .m-btn-red { background: #ff4757; color: #fff; }
        .m-btn-purple { background: #6c5ce7; color: #fff; }
        .m-btn-gold { background: #ffa502; color: #fff; }
        .m-btn-cyan { background: #00d2d3; color: #fff; }
        .m-btn-green { background: #2ed573; color: #fff; }
        .m-divider {
            height: 1px;
            background: rgba(255,255,255,0.06);
            margin: 8px 0;
        }
        .m-img-placeholder {
            width: 100%;
            height: 80px;
            background: rgba(255,255,255,0.04);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: rgba(255,255,255,0.15);
        }
        .m-progress-bar {
            height: 6px;
            background: rgba(255,255,255,0.08);
            border-radius: 3px;
            overflow: hidden;
            margin-top: 4px;
        }
        .m-progress-bar .bar-fill {
            height: 100%;
            border-radius: 3px;
        }
        .m-stat-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px;
            margin-top: 8px;
        }
        .m-stat-item {
            background: rgba(255,255,255,0.04);
            border-radius: 8px;
            padding: 8px;
            text-align: center;
        }
        .m-stat-item .ms-val {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
        }
        .m-stat-item .ms-label {
            font-size: 10px;
            color: rgba(255,255,255,0.4);
            margin-top: 2px;
        }
        .m-flow-mini {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            margin: 8px 0;
        }
        .m-flow-mini .mf-node {
            font-size: 10px;
            padding: 4px 8px;
            border-radius: 6px;
            background: rgba(255,255,255,0.06);
            color: rgba(255,255,255,0.6);
        }
        .m-flow-mini .mf-arrow {
            color: rgba(255,255,255,0.2);
            font-size: 10px;
        }

        /* === 总部直播 + 门店自播 === */
        .live-bg {
            background: linear-gradient(180deg, #0d0d1e 0%, #181830 100%);
        }
        .live-mode-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            margin-bottom: 60px;
        }
        .live-mode-card {
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: 24px;
            padding: 36px;
            position: relative;
            overflow: hidden;
        }
        .live-mode-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
        }
        .live-mode-card.headquarters::before {
            background: linear-gradient(90deg, #6c5ce7, #a29bfe);
        }
        .live-mode-card.store::before {
            background: linear-gradient(90deg, #ff4757, #ffa502);
        }
        .live-mode-card .mode-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 20px;
        }
        .headquarters .mode-badge {
            background: rgba(108,92,231,0.15);
            color: #a29bfe;
            border: 1px solid rgba(108,92,231,0.2);
        }
        .store .mode-badge {
            background: rgba(255,71,87,0.15);
            color: #ff4757;
            border: 1px solid rgba(255,71,87,0.2);
        }
        .live-mode-card h3 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .live-mode-card .mode-desc {
            font-size: 14px;
            color: rgba(255,255,255,0.5);
            line-height: 1.7;
            margin-bottom: 24px;
        }
        .mode-feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }
        .mode-feature {
            background: rgba(255,255,255,0.04);
            border-radius: 12px;
            padding: 14px 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .mode-feature .mf-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
        }
        .headquarters .mf-icon { background: rgba(108,92,231,0.12); }
        .store .mf-icon { background: rgba(255,71,87,0.12); }
        .mode-feature .mf-text {
            font-size: 13px;
            color: rgba(255,255,255,0.7);
            font-weight: 500;
        }
        .mode-flow {
            margin-top: 20px;
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }
        .mode-flow .flow-step {
            background: rgba(255,255,255,0.06);
            border-radius: 8px;
            padding: 8px 12px;
            font-size: 11px;
            color: rgba(255,255,255,0.6);
            font-weight: 500;
        }
        .mode-flow .flow-sep {
            color: rgba(255,255,255,0.2);
            font-size: 10px;
        }

        /* === 引流闭环 === */
        .funnel-bg {
            background: linear-gradient(180deg, #181830 0%, #0d0d1e 100%);
        }
        .funnel-visual {
            display: flex;
            align-items: stretch;
            gap: 40px;
            margin-bottom: 60px;
        }
        .funnel-stages {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .funnel-stage {
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: 16px;
            padding: 24px;
            display: flex;
            align-items: center;
            gap: 20px;
            transition: all 0.3s ease;
            position: relative;
        }
        .funnel-stage:hover {
            transform: translateX(8px);
            border-color: rgba(255,71,87,0.2);
        }
        .funnel-stage .stage-num {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            flex-shrink: 0;
        }
        .funnel-stage:nth-child(1) .stage-num { background: rgba(255,71,87,0.15); color: #ff4757; }
        .funnel-stage:nth-child(2) .stage-num { background: rgba(108,92,231,0.15); color: #a29bfe; }
        .funnel-stage:nth-child(3) .stage-num { background: rgba(255,165,2,0.15); color: #ffa502; }
        .funnel-stage:nth-child(4) .stage-num { background: rgba(0,210,211,0.15); color: #00d2d3; }
        .funnel-stage:nth-child(5) .stage-num { background: rgba(46,213,115,0.15); color: #2ed573; }
        .funnel-stage .stage-info h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .funnel-stage .stage-info p {
            font-size: 13px;
            color: rgba(255,255,255,0.5);
            line-height: 1.6;
        }
        .funnel-stage .stage-tags {
            display: flex;
            gap: 6px;
            margin-top: 8px;
        }
        .funnel-stage .stage-tag {
            font-size: 11px;
            color: rgba(255,255,255,0.4);
            background: rgba(255,255,255,0.06);
            border-radius: 6px;
            padding: 3px 8px;
        }

        .funnel-phone-area {
            flex: 0 0 220px;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .funnel-phone {
            width: 220px;
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: 28px;
            padding: 10px;
            box-shadow: 0 20px 60px rgba(0,0,0,0.3);
        }
        .funnel-phone-screen {
            background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
            border-radius: 20px;
            overflow: hidden;
            aspect-ratio: 9/19;
        }
        .funnel-screen-header {
            background: linear-gradient(135deg, #e84393 0%, #6c5ce7 100%);
            padding: 16px;
            position: relative;
        }
        .funnel-screen-header .live-badge-sm {
            background: #ff4757;
            color: #fff;
            font-size: 9px;
            padding: 2px 6px;
            border-radius: 4px;
            display: inline-block;
            margin-bottom: 6px;
        }
        .funnel-screen-header .live-title-sm {
            color: #fff;
            font-size: 11px;
            font-weight: 600;
            margin-bottom: 3px;
        }
        .funnel-screen-header .live-viewer-sm {
            color: rgba(255,255,255,0.7);
            font-size: 8px;
        }
        .funnel-screen-body {
            padding: 10px;
        }
        .funnel-product-row {
            display: flex;
            gap: 6px;
            margin-bottom: 8px;
        }
        .funnel-product-item {
            background: #f8fafc;
            border-radius: 6px;
            padding: 6px;
            flex: 1;
            text-align: center;
        }
        .funnel-product-item .fpi-price {
            color: #ff4757;
            font-size: 9px;
            font-weight: 600;
        }
        .funnel-product-item .fpi-name {
            color: #666;
            font-size: 7px;
        }
        .funnel-chat-msg {
            font-size: 8px;
            color: #666;
            padding: 4px 8px;
            background: #f1f5f9;
            border-radius: 10px;
            display: inline-block;
            margin-bottom: 4px;
        }
        .funnel-share-row {
            display: flex;
            gap: 6px;
            margin-top: 6px;
        }
        .funnel-share-item {
            background: #f8fafc;
            border-radius: 6px;
            padding: 4px 6px;
            font-size: 7px;
            color: #666;
            text-align: center;
            flex: 1;
        }

        /* === 分销裂变 === */
        .distribute-bg {
            background: linear-gradient(180deg, #0d0d1e 0%, #1a1a30 100%);
        }
        .distribute-content {
            display: flex;
            align-items: center;
            gap: 60px;
        }
        .distribute-left { flex: 0 0 420px; }
        .distribute-right { flex: 1; }
        .distribute-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            margin-bottom: 28px;
        }
        .distribute-item:last-child { margin-bottom: 0; }
        .distribute-item .di-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            flex-shrink: 0;
        }
        .distribute-item:nth-child(1) .di-icon { background: rgba(255,71,87,0.12); }
        .distribute-item:nth-child(2) .di-icon { background: rgba(108,92,231,0.12); }
        .distribute-item:nth-child(3) .di-icon { background: rgba(255,165,2,0.12); }
        .distribute-item:nth-child(4) .di-icon { background: rgba(0,210,211,0.12); }
        .distribute-item .di-text h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .distribute-item .di-text p {
            font-size: 13px;
            color: rgba(255,255,255,0.5);
            line-height: 1.7;
        }
        .distribute-network {
            position: relative;
            min-height: 360px;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .dn-center {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: linear-gradient(135deg, #ff4757, #e84393);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            box-shadow: 0 0 30px rgba(255,71,87,0.3);
            position: relative;
            z-index: 2;
        }
        .dn-ring {
            position: absolute;
            border-radius: 50%;
            border: 1px solid rgba(255,255,255,0.08);
        }
        .dn-ring-1 { width: 160px; height: 160px; top: calc(50% - 80px); left: calc(50% - 80px); }
        .dn-ring-2 { width: 260px; height: 260px; top: calc(50% - 130px); left: calc(50% - 130px); border-color: rgba(108,92,231,0.1); }
        .dn-ring-3 { width: 360px; height: 360px; top: calc(50% - 180px); left: calc(50% - 180px); border-color: rgba(255,165,2,0.06); }
        .dn-node {
            position: absolute;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            z-index: 3;
        }
        .dn-node-1 { top: 20%; left: 35%; }
        .dn-node-2 { top: 20%; right: 35%; }
        .dn-node-3 { bottom: 20%; left: 35%; }
        .dn-node-4 { bottom: 20%; right: 35%; }
        .dn-node-5 { top: 10%; left: 50%; transform: translateX(-50%); }
        .dn-node-6 { bottom: 10%; left: 50%; transform: translateX(-50%); }
        .dn-label {
            position: absolute;
            font-size: 11px;
            color: rgba(255,255,255,0.4);
            font-weight: 500;
            z-index: 4;
        }
        .dn-label-1 { top: 7%; left: 50%; transform: translateX(-50%); color: #a29bfe; }
        .dn-label-2 { top: 50%; right: 8%; transform: translateY(-50%); color: #ffa502; }
        .dn-label-3 { bottom: 7%; left: 50%; transform: translateX(-50%); color: #00d2d3; }

        /* === 营销组合 === */
        .marketing-bg {
            background: linear-gradient(180deg, #1a1a30 0%, #0d0d1e 100%);
        }
        .marketing-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            justify-content: center;
        }
        .marketing-card {
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: 20px;
            padding: 28px 22px;
            text-align: center;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
        }
        .marketing-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60%;
            background: linear-gradient(180deg, transparent, rgba(255,255,255,0.02));
            pointer-events: none;
        }
        .marketing-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 16px 48px rgba(0,0,0,0.3);
        }
        .marketing-card.mc-red:hover { border-color: rgba(255,71,87,0.3); }
        .marketing-card.mc-purple:hover { border-color: rgba(108,92,231,0.3); }
        .marketing-card.mc-gold:hover { border-color: rgba(255,165,2,0.3); }
        .marketing-card.mc-cyan:hover { border-color: rgba(0,210,211,0.3); }
        .mc-icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 16px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
        }
        .mc-icon.icon-red { background: linear-gradient(135deg, rgba(255,71,87,0.2), rgba(255,99,72,0.1)); }
        .mc-icon.icon-purple { background: linear-gradient(135deg, rgba(108,92,231,0.2), rgba(162,155,254,0.1)); }
        .mc-icon.icon-gold { background: linear-gradient(135deg, rgba(255,165,2,0.2), rgba(255,99,72,0.1)); }
        .mc-icon.icon-cyan { background: linear-gradient(135deg, rgba(0,210,211,0.2), rgba(1,163,164,0.1)); }
        .marketing-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .marketing-card .mc-desc {
            font-size: 13px;
            color: rgba(255,255,255,0.5);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .mc-features {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .mc-features .mc-feat {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: rgba(255,255,255,0.45);
            background: rgba(255,255,255,0.04);
            border-radius: 8px;
            padding: 8px 12px;
        }
        .mc-feat .feat-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            flex-shrink: 0;
        }
        .mc-red .feat-dot { background: #ff4757; }
        .mc-purple .feat-dot { background: #6c5ce7; }
        .mc-gold .feat-dot { background: #ffa502; }
        .mc-cyan .feat-dot { background: #00d2d3; }

        /* === 数据驱动 === */
        .data-bg {
            background: linear-gradient(180deg, #0d0d1e 0%, #181830 100%);
        }
        .data-dashboard {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-bottom: 48px;
        }
        .data-panel {
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: 20px;
            padding: 28px;
            position: relative;
        }
        .data-panel h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .data-panel h4 .dp-icon {
            font-size: 18px;
        }
        .dp-stats {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin-bottom: 20px;
        }
        .dp-stat {
            background: rgba(255,255,255,0.04);
            border-radius: 12px;
            padding: 16px;
        }
        .dp-stat .dp-val {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 4px;
        }
        .dp-stat .dp-val.red { color: #ff4757; }
        .dp-stat .dp-val.purple { color: #a29bfe; }
        .dp-stat .dp-val.cyan { color: #00d2d3; }
        .dp-stat .dp-val.green { color: #2ed573; }
        .dp-stat .dp-label {
            font-size: 12px;
            color: rgba(255,255,255,0.4);
        }
        .dp-chart {
            height: 100px;
            background: rgba(255,255,255,0.03);
            border-radius: 12px;
            display: flex;
            align-items: flex-end;
            justify-content: space-around;
            padding: 12px 8px 8px;
            gap: 6px;
        }
        .dp-bar {
            width: 100%;
            border-radius: 4px 4px 0 0;
            transition: height 0.3s ease;
        }
        .dp-bar.bar-red { background: linear-gradient(180deg, #ff4757, rgba(255,71,87,0.4)); }
        .dp-bar.bar-purple { background: linear-gradient(180deg, #6c5ce7, rgba(108,92,231,0.4)); }
        .dp-bar.bar-cyan { background: linear-gradient(180deg, #00d2d3, rgba(0,210,211,0.4)); }
        .dp-bar.bar-green { background: linear-gradient(180deg, #2ed573, rgba(46,213,115,0.4)); }
        .dp-bar-label {
            font-size: 9px;
            color: rgba(255,255,255,0.3);
            text-align: center;
            margin-top: 4px;
        }
        .data-bottom-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .data-bottom-card {
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: 16px;
            padding: 24px;
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .data-bottom-card .dbc-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }
        .data-bottom-card:nth-child(1) .dbc-icon { background: rgba(255,71,87,0.12); }
        .data-bottom-card:nth-child(2) .dbc-icon { background: rgba(108,92,231,0.12); }
        .data-bottom-card:nth-child(3) .dbc-icon { background: rgba(0,210,211,0.12); }
        .data-bottom-card .dbc-text h5 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 4px;
        }
        .data-bottom-card .dbc-text p {
            font-size: 12px;
            color: rgba(255,255,255,0.45);
            line-height: 1.5;
        }

        /* === 多店管控 === */
        .control-bg {
            background: linear-gradient(180deg, #181830 0%, #0d0d1e 100%);
        }
        .control-hierarchy {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 32px;
            margin-bottom: 48px;
        }
        .control-level {
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: 20px;
            padding: 32px 28px;
            width: 240px;
            text-align: center;
            transition: all 0.3s ease;
        }
        .control-level:hover {
            transform: translateY(-4px);
        }
        .control-level:nth-child(1):hover { border-color: rgba(108,92,231,0.3); }
        .control-level:nth-child(2):hover { border-color: rgba(255,165,2,0.3); }
        .control-level:nth-child(3):hover { border-color: rgba(255,71,87,0.3); }
        .control-level .cl-badge {
            display: inline-block;
            font-size: 11px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 16px;
            margin-bottom: 14px;
        }
        .control-level:nth-child(1) .cl-badge { background: rgba(108,92,231,0.15); color: #a29bfe; }
        .control-level:nth-child(2) .cl-badge { background: rgba(255,165,2,0.15); color: #ffa502; }
        .control-level:nth-child(3) .cl-badge { background: rgba(255,71,87,0.15); color: #ff4757; }
        .control-level h4 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .control-level .cl-desc {
            font-size: 13px;
            color: rgba(255,255,255,0.5);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .control-level .cl-features {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .control-level .cl-feat {
            font-size: 12px;
            color: rgba(255,255,255,0.45);
            background: rgba(255,255,255,0.04);
            border-radius: 8px;
            padding: 8px 10px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .control-level:nth-child(1) .cl-feat::before { content: '◆'; color: #a29bfe; font-size: 8px; }
        .control-level:nth-child(2) .cl-feat::before { content: '◆'; color: #ffa502; font-size: 8px; }
        .control-level:nth-child(3) .cl-feat::before { content: '◆'; color: #ff4757; font-size: 8px; }
        .control-features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .cf-card {
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: 16px;
            padding: 24px;
            transition: all 0.3s ease;
        }
        .cf-card:hover {
            transform: translateY(-3px);
            border-color: rgba(255,255,255,0.12);
        }
        .cf-card .cf-icon { font-size: 24px; margin-bottom: 12px; }
        .cf-card h5 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .cf-card p {
            font-size: 12px;
            color: rgba(255,255,255,0.45);
            line-height: 1.5;
        }

        /* === 履约闭环 === */
        .fulfillment-bg {
            background: linear-gradient(180deg, #0d0d1e 0%, #1c1c32 100%);
        }
        .fulfillment-flow {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 16px;
            margin-bottom: 48px;
            flex-wrap: wrap;
        }
        .ff-step {
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: 16px;
            padding: 20px 24px;
            width: 160px;
            text-align: center;
            transition: all 0.3s ease;
        }
        .ff-step:hover {
            transform: translateY(-3px);
        }
        .ff-step:nth-child(1) { border-color: rgba(255,71,87,0.15); }
        .ff-step:nth-child(3) { border-color: rgba(108,92,231,0.15); }
        .ff-step:nth-child(5) { border-color: rgba(255,165,2,0.15); }
        .ff-step:nth-child(7) { border-color: rgba(0,210,211,0.15); }
        .ff-step:nth-child(9) { border-color: rgba(46,213,115,0.15); }
        .ff-step .ff-icon { font-size: 24px; margin-bottom: 8px; }
        .ff-step h5 {
            font-size: 13px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 4px;
        }
        .ff-step p {
            font-size: 11px;
            color: rgba(255,255,255,0.4);
        }
        .ff-arrow {
            color: rgba(255,255,255,0.2);
            font-size: 16px;
        }
        .fulfillment-modes {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .fm-card {
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: 20px;
            padding: 28px;
            position: relative;
        }
        .fm-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            border-radius: 20px 20px 0 0;
        }
        .fm-card:nth-child(1)::before { background: linear-gradient(90deg, #ff4757, #ff6348); }
        .fm-card:nth-child(2)::before { background: linear-gradient(90deg, #6c5ce7, #a29bfe); }
        .fm-card:nth-child(3)::before { background: linear-gradient(90deg, #00d2d3, #01a3a4); }
        .fm-card h4 {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .fm-card .fm-desc {
            font-size: 13px;
            color: rgba(255,255,255,0.5);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .fm-card .fm-items {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .fm-card .fm-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: rgba(255,255,255,0.5);
        }
        .fm-item::before {
            content: '✦';
            font-size: 8px;
            color: rgba(255,255,255,0.3);
        }

        /* === FAQ === */
        .faq-bg {
            background: linear-gradient(180deg, #1c1c32 0%, #0f0f1a 100%);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: 16px;
            margin-bottom: 12px;
            padding: 20px 24px;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .faq-item:hover {
            border-color: rgba(255,71,87,0.15);
        }
        .faq-question {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
        }
        .faq-answer {
            font-size: 14px;
            color: rgba(255,255,255,0.5);
            line-height: 1.6;
            margin-top: 10px;
            display: none;
        }
        .faq-item.active .faq-answer { display: block; }
        .faq-item.active { border-color: rgba(255,71,87,0.2); }

        /* === 信任背书 === */
        .trust-bg {
            background: #0f0f1a;
            padding: 60px 40px;
        }
        .trust-grid {
            display: flex;
            justify-content: center;
            align-items: flex-start;
            gap: 56px;
            max-width: 1000px;
            margin: 0 auto;
        }
        .trust-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            transition: transform 0.3s ease;
        }
        .trust-item:hover { transform: translateY(-4px); }
        .trust-item img {
            width: 80px;
            height: 80px;
            object-fit: contain;
            border-radius: 8px;
            margin-bottom: 12px;
        }
        .trust-label {
            font-size: 13px;
            color: rgba(255,255,255,0.5);
            line-height: 1.7;
        }

        /* === 底部 CTA === */
        .cta-bg {
            background: linear-gradient(180deg, #1a1a2e 0%, #0f0f1a 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-bg::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(ellipse at center, rgba(255,71,87,0.08) 0%, transparent 50%);
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 24px;
            margin-bottom: 32px;
        }
        .cta-btn-primary {
            display: inline-block;
            background: linear-gradient(135deg, #ff4757, #ff6348);
            color: #fff;
            font-size: 17px;
            padding: 16px 40px;
            border-radius: 12px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .cta-btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(255,71,87,0.3); }
        .cta-btn-white {
            display: inline-block;
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,255,255,0.15);
            color: #fff;
            font-size: 17px;
            padding: 16px 40px;
            border-radius: 12px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .cta-btn-white:hover { background: rgba(255,255,255,0.12); transform: translateY(-2px); }
        .cta-features {
            display: flex;
            justify-content: center;
            gap: 32px;
            font-size: 14px;
            color: rgba(255,255,255,0.45);
        }
        .cta-feat {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* === Footer === */
        .footer {
            border-top: 1px solid rgba(255,255,255,0.05);
            padding: 0px 40px 30px;
        }
        .footer-inner {
            max-width: 1400px;
            margin: 0 auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
            margin-bottom: 24px;
        }
        /* 左侧品牌区 */
        .footer-brand {
            padding-right: 20px;
        }
        .footer-brand .f-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .footer-brand .f-logo img {
            height: 26px;
        }
        .footer-brand .f-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .footer-brand .f-desc {
            font-size: 13px;
            color: rgba(255,255,255,0.38);
            line-height: 1.8;
            max-width: 360px;
            margin-bottom: 16px;
        }
        .footer-brand .f-phone {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 700;
            color: #5c8aff;
            text-decoration: none;
            letter-spacing: 0.5px;
        }
        .footer-brand .f-phone:hover { opacity: 0.85; }

        /* 导航列 */
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col li {
            margin-bottom: 10px;
        }
        .footer-col a {
            font-size: 13px;
            color: rgba(255,255,255,0.35);
            text-decoration: none;
            transition: color 0.2s ease;
            line-height: 1.6;
        }
        .footer-col a:hover { color: #ff4757; }

        /* 底部版权 */
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-copyright {
            font-size: 12px;
            color: rgba(255,255,255,0.25);
        }
        .footer-icp {
            font-size: 12px;
            color: rgba(255,255,255,0.22);
        }

        /* === 响应式 === */
        @media (max-width: 1100px) {
            .engine-showcase { flex-direction: column !important; gap: 40px; padding: 24px 16px; }
            .engine-showcase-visual { order: -1; }
            .es-title { font-size: 22px; }
            .hero-cycle-node { width: 100px; height: 100px; }
            .cycle-label { font-size: 11px; }
            .cycle-icon { font-size: 20px; }
            .cycle-connector { width: 32px; }
            .marketing-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 900px) {
            .hero-title { font-size: 32px; }
            .hero-tagline { font-size: 15px; }
            .hero-stats { grid-template-columns: repeat(2, 1fr); }
            .hero-cycle { flex-wrap: wrap; gap: 8px; justify-content: center; }
            .cycle-connector { display: none; }
            .hero-cycle-node { width: 90px; height: 90px; }
            .pain-grid { grid-template-columns: 1fr; }
            .live-mode-grid { grid-template-columns: 1fr; }
            .funnel-visual { flex-direction: column; }
            .funnel-phone-area { flex: none; width: 100%; }
            .distribute-content { flex-direction: column; }
            .distribute-left { flex: none; width: 100%; }
            .data-dashboard { grid-template-columns: 1fr; }
            .data-bottom-row { grid-template-columns: 1fr; }
            .control-hierarchy { flex-direction: column; }
            .control-level { width: 100%; }
            .control-features-grid { grid-template-columns: 1fr; }
            .engine-ring { width: 140px; height: 140px; }
            .engine-connector { display: none; }
            .engine-flow { flex-wrap: wrap; gap: 12px; justify-content: center; }
            .fulfillment-flow { flex-direction: column; }
            .ff-arrow { transform: rotate(90deg); }
            .fulfillment-modes { grid-template-columns: 1fr; }
            .mode-feature-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .footer-brand { padding-right: 0; grid-column: span 2; margin-bottom: 10px; }
        }
        @media (max-width: 600px) {
            .section { padding: 60px 16px; }
            .hero-title { font-size: 24px; }
            .hero-tagline { font-size: 14px; }
            .hero-cycle-node { width: 72px; height: 72px; }
            .cycle-label { font-size: 10px; }
            .cycle-sublabel { display: none; }
            .cycle-icon { font-size: 18px; }
            .engine-showcase { flex-direction: column !important; gap: 32px; padding: 20px 12px; }
            .phone-mockup { width: 240px; height: 420px; }
            .marketing-grid { grid-template-columns: 1fr; }
            .hero-stats { grid-template-columns: 1fr 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; padding-bottom: 28px; }
            .footer-brand { grid-column: span 1; }
            .footer-bottom { flex-direction: column; text-align: center; gap: 6px; }
        }

        /* === 滚动动画 === */
        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }