:root {
            --cream: #fef8f0;
            --warm-white: #fffaf5;
            --card: #ffffff;
            --deep-cocoa: #2b1a10;
            --hero-bg: #1f1108;
            --accent-coral: #e8815b;
            --accent-amber: #d4943a;
            --accent-gold: #c4853a;
            --text-dark: #2e1f14;
            --text-body: #4a3729;
            --text-muted: #8c7567;
            --border-warm: #f0e0d0;
            --border-soft: #f5e8da;
            --shadow-warm: 0 12px 32px -10px rgba(120, 70, 30, 0.10);
            --shadow-hover: 0 20px 40px -12px rgba(180, 100, 40, 0.20);
            --shadow-glow: 0 8px 28px -6px rgba(200, 120, 50, 0.18);
            --radius-xl: 1.75rem;
            --radius-lg: 1.25rem;
            --radius-md: 0.85rem;
            --radius-sm: 0.55rem;
            --transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Noto Sans SC', sans-serif;
            background-color: var(--cream);
            color: var(--text-body);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        /* ===== Header ===== */
        header {
            background: #fffaf5;
            border-bottom: 1px solid var(--border-soft);
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            background: rgba(255, 250, 245, 0.92);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 0.9rem 0;
            gap: 0.6rem;
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        .logo-area {
            display: flex;
            align-items: baseline;
            gap: 0.45rem;
            flex-shrink: 0;
            text-decoration: none;
        }
        .logo-area .logo-text {
            font-size: 1.55rem;
            font-weight: 750;
            color: var(--deep-cocoa);
            letter-spacing: -0.02em;
            line-height: 1;
        }
        .logo-area .logo-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-coral);
            margin-left: 2px;
            flex-shrink: 0;
            animation: pulse-dot 2.4s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                transform: scale(1);
                opacity: 0.8;
            }
            50% {
                transform: scale(1.7);
                opacity: 1;
            }
        }
        .logo-badge {
            background: #fef0e6;
            color: #c0703a;
            font-size: 0.7rem;
            padding: 0.2rem 0.6rem;
            border-radius: 20px;
            font-weight: 600;
            white-space: nowrap;
            letter-spacing: 0.03em;
            border: 1px solid #f5d5ba;
        }
        .nav-links {
            display: flex;
            gap: 1.1rem;
            list-style: none;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-links a {
            color: #5c3d2e;
            text-decoration: none;
            font-weight: 530;
            font-size: 0.9rem;
            transition: var(--transition);
            white-space: nowrap;
            padding: 0.3rem 0;
            border-bottom: 2px solid transparent;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: #c06030;
            border-bottom-color: #e0a070;
        }
        .nav-links a.nav-dl {
            background: #fbe9d9;
            color: #b8552a;
            padding: 0.4rem 1rem;
            border-radius: 22px;
            font-weight: 620;
            border-bottom: none;
            transition: var(--transition);
        }
        .nav-links a.nav-dl:hover {
            background: #f5d5b8;
            color: #8b3a1a;
            border-bottom: none;
        }

        /* ===== Hero ===== */
        .hero {
            background: linear-gradient(160deg, #1a0d05 0%, #2b1a0e 40%, #1f1108 100%);
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: "";
            position: absolute;
            width: 140%;
            height: 140%;
            top: -20%;
            left: -20%;
            background: radial-gradient(ellipse at 35% 30%, rgba(220, 140, 80, 0.13) 0%, transparent 55%),
                radial-gradient(ellipse at 65% 60%, rgba(200, 110, 55, 0.09) 0%, transparent 50%);
            pointer-events: none;
        }
        .hero-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 2.5rem;
            padding: 4.5rem 1.5rem 3.5rem;
            max-width: 1280px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }
        .hero-text {
            flex: 1.3;
            min-width: 280px;
        }
        .hero-tag {
            display: inline-block;
            background: rgba(220, 140, 90, 0.18);
            color: #f0b878;
            padding: 0.35rem 1.1rem;
            border-radius: 30px;
            font-size: 0.82rem;
            font-weight: 600;
            margin-bottom: 1.2rem;
            letter-spacing: 0.03em;
            border: 1px solid rgba(200, 140, 80, 0.25);
        }
        .hero-text h1 {
            font-size: clamp(2rem, 4.5vw, 3.2rem);
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
            margin-bottom: 0.8rem;
            letter-spacing: -0.02em;
        }
        .hero-text h1 span {
            background: linear-gradient(135deg, #f5c080, #f09050, #e8784a);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
        }
        .hero-text .hero-desc {
            font-size: 1.1rem;
            color: #d4b896;
            margin: 1rem 0 2rem;
            max-width: 92%;
            line-height: 1.65;
        }
        .hero-btns {
            display: flex;
            gap: 0.9rem;
            flex-wrap: wrap;
        }
        .btn-warm {
            background: linear-gradient(135deg, #e8784a, #d06038);
            color: #fff;
            padding: 0.75rem 2rem;
            border-radius: 36px;
            font-weight: 620;
            text-decoration: none;
            transition: var(--transition);
            box-shadow: 0 6px 20px rgba(200, 90, 40, 0.30);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
        }
        .btn-warm:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(200, 90, 40, 0.40);
            background: linear-gradient(135deg, #f09060, #d86840);
        }
        .btn-soft {
            border: 1.5px solid rgba(220, 160, 110, 0.5);
            background: rgba(255, 255, 255, 0.04);
            color: #f5d0b0;
            padding: 0.75rem 2rem;
            border-radius: 36px;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.95rem;
        }
        .btn-soft:hover {
            background: rgba(220, 140, 80, 0.10);
            border-color: #f0b878;
            color: #fff;
        }
        .hero-card {
            flex: 0.85;
            min-width: 230px;
            background: rgba(40, 22, 12, 0.7);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-radius: var(--radius-xl);
            padding: 1.6rem;
            border: 1px solid rgba(200, 140, 80, 0.25);
            box-shadow: 0 18px 35px -10px rgba(0, 0, 0, 0.45);
        }
        .hero-card-item {
            display: flex;
            align-items: center;
            gap: 0.9rem;
            margin-bottom: 1.2rem;
        }
        .hero-card-item:last-child {
            margin-bottom: 0;
        }
        .hero-card-icon {
            font-size: 1.8rem;
            flex-shrink: 0;
            filter: drop-shadow(0 0 6px rgba(240, 160, 80, 0.5));
        }
        .hero-card-item h4 {
            color: #c9a882;
            font-size: 0.78rem;
            font-weight: 500;
            letter-spacing: 0.02em;
        }
        .hero-card-item p {
            font-size: 1.1rem;
            font-weight: 680;
            color: #fef0e0;
        }

        /* ===== Section Common ===== */
        .section {
            padding: 4rem 0;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .section-label {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 650;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: #c0703a;
            margin-bottom: 0.5rem;
        }
        .section-title {
            font-size: clamp(1.6rem, 3.2vw, 2.2rem);
            font-weight: 750;
            color: var(--deep-cocoa);
            margin-bottom: 0.7rem;
            letter-spacing: -0.02em;
        }
        .section-desc {
            color: #6b5040;
            font-size: 1.05rem;
            margin-bottom: 2.5rem;
            max-width: 680px;
        }

        /* ===== Intro Block ===== */
        .intro-block {
            background: var(--card);
            border-radius: var(--radius-xl);
            padding: 2.5rem;
            box-shadow: var(--shadow-warm);
            border: 1px solid var(--border-warm);
            margin-bottom: 2rem;
            line-height: 1.8;
        }
        .intro-block h2 {
            font-size: 1.5rem;
            color: var(--deep-cocoa);
            margin-bottom: 1rem;
            font-weight: 700;
        }
        .intro-block p {
            margin-bottom: 1rem;
            color: #4a3729;
        }
        .intro-block p:last-child {
            margin-bottom: 0;
        }
        .highlight-box {
            background: #fef9f2;
            border-left: 4px solid #e0a060;
            padding: 1rem 1.4rem;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.2rem 0;
            font-weight: 500;
            color: #5c3020;
        }

        /* ===== Card Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 1.5rem;
        }
        .warm-card {
            background: var(--card);
            border-radius: var(--radius-xl);
            padding: 2rem 1.6rem;
            box-shadow: var(--shadow-warm);
            border: 1px solid var(--border-warm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            position: relative;
            overflow: hidden;
        }
        .warm-card::after {
            content: "";
            position: absolute;
            top: -30px;
            right: -40px;
            width: 90px;
            height: 90px;
            border-radius: 50%;
            background: rgba(240, 160, 90, 0.06);
            pointer-events: none;
            transition: var(--transition);
        }
        .warm-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: #f0c8a0;
        }
        .warm-card:hover::after {
            transform: scale(1.4);
            background: rgba(240, 150, 80, 0.10);
        }
        .warm-card .card-icon {
            font-size: 2.6rem;
            margin-bottom: 0.8rem;
            line-height: 1;
            position: relative;
            z-index: 1;
        }
        .warm-card h3 {
            font-size: 1.25rem;
            color: var(--deep-cocoa);
            margin-bottom: 0.5rem;
            font-weight: 700;
            position: relative;
            z-index: 1;
        }
        .warm-card p {
            color: #5c4030;
            font-size: 0.93rem;
            flex-grow: 1;
            margin-bottom: 1rem;
            position: relative;
            z-index: 1;
            line-height: 1.6;
        }
        .warm-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            color: #c06030;
            font-weight: 620;
            text-decoration: none;
            font-size: 0.9rem;
            transition: var(--transition);
            position: relative;
            z-index: 1;
            margin-top: auto;
        }
        .warm-card .card-link:hover {
            gap: 0.65rem;
            color: #8b3a1a;
        }

        /* ===== Knowledge Hub Grid ===== */
        .kb-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
            margin: 1.5rem 0 2rem;
        }
        .kb-card {
            background: var(--card);
            border-radius: var(--radius-lg);
            padding: 1.3rem 1.1rem;
            text-align: center;
            text-decoration: none;
            color: var(--text-dark);
            border: 1px solid var(--border-soft);
            box-shadow: 0 6px 18px -6px rgba(100, 50, 20, 0.05);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.5rem;
        }
        .kb-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-glow);
            border-color: #f0c090;
            color: #b8552a;
        }
        .kb-card .kb-icon {
            font-size: 2.2rem;
            line-height: 1;
        }
        .kb-card span {
            font-weight: 630;
            font-size: 0.9rem;
        }
        .kb-card small {
            font-size: 0.75rem;
            color: #9c7d68;
            font-weight: 400;
        }

        /* ===== Steps Flow ===== */
        .steps-row {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            justify-content: center;
            counter-reset: stp;
        }
        .step-item {
            flex: 1;
            min-width: 150px;
            max-width: 200px;
            background: var(--card);
            border-radius: var(--radius-xl);
            padding: 1.6rem 1.2rem;
            text-align: center;
            border: 1px solid var(--border-warm);
            box-shadow: var(--shadow-warm);
            transition: var(--transition);
            counter-increment: stp;
            position: relative;
        }
        .step-item:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: #f0c090;
        }
        .step-item::before {
            content: counter(stp);
            display: block;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, #e8784a, #d4943a);
            color: #fff;
            border-radius: 50%;
            font-weight: 700;
            font-size: 1.1rem;
            line-height: 40px;
            margin: 0 auto 0.9rem;
            box-shadow: 0 5px 14px rgba(200, 100, 40, 0.28);
        }
        .step-item h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--deep-cocoa);
            margin-bottom: 0.3rem;
        }
        .step-item p {
            font-size: 0.8rem;
            color: #7a5e4a;
            line-height: 1.45;
        }
		/* ========== 区块容器 ========== */
.section {
    padding: 4rem 0;
}
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ========== 标签与标题 ========== */
.section-label {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 650;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #c0703a;
    margin-bottom: 0.5rem;
}
.section-title {
    font-size: clamp(1.6rem, 3.2vw, 2.2rem);
    font-weight: 750;
    color: var(--deep-cocoa);
    margin-bottom: 0.7rem;
    letter-spacing: -0.02em;
}
.section-desc {
    color: #6b5040;
    font-size: 1.05rem;
    margin-bottom: 2.5rem;
    max-width: 680px;
}

/* ========== 卡片网格 ========== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
}

/* ========== 温暖主题卡片 ========== */
.warm-card {
    background: var(--card);
    border-radius: var(--radius-xl);
    padding: 2rem 1.6rem;
    box-shadow: var(--shadow-warm);
    border: 1px solid var(--border-warm);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}
/* 卡片右上角的装饰光晕 */
.warm-card::after {
    content: "";
    position: absolute;
    top: -30px;
    right: -40px;
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: rgba(240, 160, 90, 0.06);
    pointer-events: none;
    transition: var(--transition);
}
.warm-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: #f0c8a0;
}
.warm-card:hover::after {
    transform: scale(1.4);
    background: rgba(240, 150, 80, 0.10);
}

/* 卡片内部图标 */
.card-icon {
    font-size: 2.6rem;
    margin-bottom: 0.8rem;
    line-height: 1;
    position: relative;
    z-index: 1;
}

/* 卡片标题 */
.warm-card h3 {
    font-size: 1.25rem;
    color: var(--deep-cocoa);
    margin-bottom: 0.5rem;
    font-weight: 700;
    position: relative;
    z-index: 1;
}

/* 卡片描述 */
.warm-card p {
    color: #5c4030;
    font-size: 0.93rem;
    flex-grow: 1;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
    line-height: 1.6;
}

/* 卡片链接箭头 */
.card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    color: #c06030;
    font-weight: 620;
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
    position: relative;
    z-index: 1;
    margin-top: auto;
}
.card-link:hover {
    gap: 0.65rem;
    color: #8b3a1a;
}

/* ========== 移动端适配（平板/手机） ========== */
@media (max-width: 768px) {
    .section {
        padding: 2.5rem 0;
    }
    .card-grid {
        grid-template-columns: 1fr;
    }
    .warm-card {
        padding: 1.5rem 1.2rem;
    }
}

        /* ===== CTA Banner ===== */
        .cta-banner {
            background: linear-gradient(150deg, #2b180c 0%, #3d2015 50%, #1f0f06 100%);
            border-radius: var(--radius-xl);
            padding: 3.5rem 2.5rem;
            text-align: center;
            position: relative;
            overflow: hidden;
            margin: 2.5rem 0 1rem;
            border: 1px solid rgba(220, 150, 80, 0.3);
        }
        .cta-banner::before {
            content: "";
            position: absolute;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(220, 140, 70, 0.18), transparent 68%);
            top: -90px;
            right: -70px;
            pointer-events: none;
        }
        .cta-banner::after {
            content: "";
            position: absolute;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(240, 170, 100, 0.10), transparent 65%);
            bottom: -60px;
            left: -40px;
            pointer-events: none;
        }
        .cta-banner h3 {
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 780;
            color: #fff;
            margin-bottom: 0.7rem;
            position: relative;
            z-index: 1;
        }
        .cta-banner p {
            color: #e0c8a8;
            font-size: 1.05rem;
            margin-bottom: 2rem;
            position: relative;
            z-index: 1;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-banner .btn-warm {
            font-size: 1.05rem;
            padding: 0.9rem 2.6rem;
            position: relative;
            z-index: 1;
        }
        .cta-banner .btn-subtle {
            display: inline-block;
            margin-top: 1rem;
            color: #d4b896;
            font-size: 0.85rem;
            text-decoration: none;
            position: relative;
            z-index: 1;
            transition: var(--transition);
        }
        .cta-banner .btn-subtle:hover {
            color: #f5d0b0;
        }

        /* ===== Footer ===== */
        footer {
            background: #1f1108;
            color: #b09880;
            padding: 2.5rem 0;
            margin-top: 2.5rem;
        }
        .footer-inner {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 2rem;
            align-items: flex-start;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .footer-col h5 {
            color: #f0d8b8;
            margin-bottom: 0.7rem;
            font-size: 0.9rem;
            font-weight: 650;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 0.35rem;
        }
        .footer-col ul li a {
            color: #b09880;
            text-decoration: none;
            font-size: 0.82rem;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: #f0b878;
        }
        .copyright {
            text-align: center;
            padding-top: 1.4rem;
            margin-top: 1rem;
            border-top: 1px solid #3d2518;
            font-size: 0.78rem;
            color: #8c7058;
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* ===== Responsive ===== */
        @media (max-width: 768px) {
            .hero-inner {
                padding: 3rem 1rem 2.5rem;
                gap: 1.8rem;
            }
            .hero-text h1 {
                font-size: 1.8rem;
            }
            .hero-text .hero-desc {
                max-width: 100%;
                font-size: 1rem;
            }
            .hero-card {
                width: 100%;
            }
            .nav-links {
                gap: 0.6rem;
                font-size: 0.82rem;
            }
            .header-inner {
                flex-direction: column;
                align-items: flex-start;
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .section {
                padding: 2.5rem 0;
            }
            .intro-block {
                padding: 1.5rem;
            }
            .cta-banner {
                padding: 2.5rem 1.3rem;
                border-radius: var(--radius-lg);
            }
            .kb-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.7rem;
            }
            .steps-row {
                gap: 0.7rem;
            }
            .step-item {
                min-width: 120px;
                max-width: 100%;
                flex: 0 0 calc(50% - 0.35rem);
                padding: 1.2rem 0.8rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .warm-card {
                padding: 1.5rem 1.2rem;
            }
        }
        @media (max-width: 480px) {
            .kb-grid {
                grid-template-columns: 1fr 1fr;
            }
            .step-item {
                flex: 0 0 100%;
                max-width: 100%;
            }
            .hero-btns {
                flex-direction: column;
                align-items: flex-start;
            }
            .btn-warm,
            .btn-soft {
                width: 100%;
                justify-content: center;
                text-align: center;
            }
            .nav-links {
                gap: 0.4rem;
            }
            .nav-links a {
                font-size: 0.78rem;
            }
            .footer-inner {
                flex-direction: column;
                gap: 1.2rem;
            }
        }