/* ============================================================
   LinERP — 线联ERP 企业官网样式
   科技企业风：深蓝 + 白色，专业稳重
   ============================================================ */

/* --- CSS Variables (Brand Tokens) --- */
:root {
    --color-primary: #1e40af;
    --color-primary-light: #2563eb;
    --color-primary-lighter: #3b82f6;
    --color-accent: #0ea5e9;
    --color-dark: #0f172a;
    --color-text: #1e293b;
    --color-text-secondary: #475569;
    --color-gray: #64748b;
    --color-gray-light: #94a3b8;
    --color-bg: #ffffff;
    --color-bg-alt: #f1f5f9;
    --color-bg-card: #f8fafc;
    --color-border: #e2e8f0;
    --color-success: #10b981;
    --color-white: #ffffff;
    --font-family: "微软雅黑", "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    --font-mono: "Cascadia Code", "Fira Code", Consolas, monospace;
    --max-width: 1200px;
    --header-height: 72px;
    --radius: 8px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
    --transition: 0.25s ease;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-bg);
    min-width: 320px;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-dark);
}

h1 {
    font-size: 2.75rem;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 2.25rem;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1rem;
    color: var(--color-text-secondary);
}

a {
    color: var(--color-primary-light);
    text-decoration: none;
    transition: color var(--transition);
}

    a:hover {
        color: var(--color-primary);
    }

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

ul {
    list-style: none;
}

/* --- Utility --- */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 56px 0;
}

.section-alt {
    background: var(--color-bg-alt);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

    .section-header h2 {
        margin-bottom: 16px;
    }

    .section-header p {
        font-size: 1.125rem;
        max-width: 640px;
        margin: 0 auto;
        color: var(--color-gray);
    }

/* ============================================================
   HEADER & NAVIGATION
   ============================================================ */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    transition: box-shadow var(--transition);
}

    .site-header.scrolled {
        box-shadow: var(--shadow);
    }

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-dark);
    letter-spacing: -0.01em;
}

.logo-img {
    height: 40px;
    width: auto;
    display: block;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
    margin: 0;
    padding: 0;
}

    .nav-links > li {
        position: relative;
    }

        .nav-links > li > a {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 8px 18px;
            border-radius: 6px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }

            .nav-links > li > a::after {
                content: "";
                display: inline-block;
                width: 16px;
                height: 16px;
                background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E") center/contain no-repeat;
                opacity: 0;
                transition: all var(--transition);
            }

        .nav-links > li.has-dropdown > a::after {
            opacity: 1;
        }

        .nav-links > li > a {
            position: relative;
        }

            .nav-links > li > a::before {
                content: "";
                position: absolute;
                bottom: 2px;
                left: 18px;
                right: 18px;
                height: 2.5px;
                border-radius: 2px;
                background: transparent;
                transition: background var(--transition);
            }

            .nav-links > li > a:hover {
                color: var(--color-primary);
            }

                .nav-links > li > a:hover::before {
                    background: var(--color-primary);
                }

            .nav-links > li > a.active {
                color: var(--color-primary);
                font-weight: 600;
            }

                .nav-links > li > a.active::before {
                    background: #f97316;
                }

        .nav-links > li.has-dropdown > a.active::before {
            left: 18px;
            right: calc(18px + 16px);
        }

        .nav-links > li > a.login-link::before {
            content: none;
        }

    /* --- Dropdown / Mega Menu --- */
    .nav-links .dropdown {
        position: absolute;
        top: calc(100% + 4px);
        left: 50%;
        transform: translateX(-50%) translateY(4px);
        background: var(--color-white);
        border: 1px solid var(--color-border);
        border-radius: 0;
        box-shadow: var(--shadow-lg);
        padding: 20px 24px;
        opacity: 0;
        visibility: hidden;
        transition: all 0.2s ease;
        z-index: 1001;
        display: grid;
        gap: 4px;
    }

    /* Product mega menu: 3-column category layout */
    .nav-links > li.has-dropdown:nth-of-type(2) .dropdown {
        grid-template-columns: repeat(3, 1fr);
        min-width: 900px;
        padding: 24px 12px;
        gap: 0;
        left: 0;
        right: auto;
        transform: translateX(0) translateY(4px);
    }

    .nav-links > li.has-dropdown:nth-of-type(2):hover .dropdown {
        transform: translateX(0) translateY(0);
    }

    /* 资源中心：两列类别布局 */
    .nav-links > li.has-dropdown:nth-of-type(4) .dropdown {
        grid-template-columns: repeat(2, 1fr);
        min-width: 400px;
        padding: 24px 12px;
        gap: 0;
        left: 0;
        right: auto;
        transform: translateX(0) translateY(4px);
    }

    .nav-links > li.has-dropdown:nth-of-type(4):hover .dropdown {
        transform: translateX(0) translateY(0);
    }

.dropdown-col {
    padding: 0 12px;
}

    .dropdown-col:not(:last-child) {
        border-right: 1px solid var(--color-border);
    }

.dropdown-col-title {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    padding: 8px 14px 12px;
    margin-bottom: 4px;
    border-bottom: 1px solid var(--color-border);
}

.dropdown-col a {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    gap: 8px !important;
    padding: 10px 14px !important;
    border-radius: 6px !important;
    font-size: 0.85rem !important;
    font-weight: 500 !important;
    color: var(--color-text-secondary) !important;
    transition: all var(--transition) !important;
    white-space: nowrap !important;
    text-align: left !important;
    min-width: auto !important;
}

    .dropdown-col a:hover {
        color: var(--color-primary) !important;
        background: rgba(30, 64, 175, 0.06) !important;
    }

    .dropdown-col a .mega-label {
        font-size: 0.82rem !important;
    }

/* About mega menu: 2 items = 2 cols */
.nav-links > li.has-dropdown:nth-of-type(6) .dropdown {
    grid-template-columns: repeat(2, 1fr);
    min-width: 220px;
    left: 0;
    right: auto;
    transform: translateX(0) translateY(4px);
}

.nav-links > li.has-dropdown:nth-of-type(6):hover .dropdown {
    transform: translateX(0) translateY(0);
}

.nav-links > li:hover .dropdown,
.nav-links > li > a:focus + .dropdown,
.nav-links .dropdown:focus-within {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav-links .dropdown a {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 14px 10px;
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: all var(--transition);
    white-space: nowrap;
    text-align: center;
    min-width: 100px;
}

}

.nav-links .dropdown a .mega-label {
    font-size: 0.82rem;
}

.nav-links .dropdown a:hover {
    color: var(--color-primary);
    background: rgba(30, 64, 175, 0.06);
}


/* ============================================================
   HERO (Home Page)
   ============================================================ */

.hero {
    padding: 160px 0 120px;
    background: linear-gradient(170deg, #f0f4ff 0%, #ffffff 40%, #f8fafc 100%);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    overflow: hidden;
}

    /* Decorative circles only when no banner image */
    .hero::after {
        content: "";
        position: absolute;
        bottom: -20%;
        left: -10%;
        width: 400px;
        height: 400px;
        background: radial-gradient(circle, rgba(14, 165, 233, 0.06) 0%, transparent 70%);
        border-radius: 50%;
    }

.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 72px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero[style*="background-image"] .hero-text h1,
.hero-text h1 {
    font-size: 2.25rem;
    margin-bottom: 24px;
    line-height: 1.3;
}

.hero[style*="background-image"] .hero-text h1 {
    color: #fff;
    text-shadow: 0 2px 12px rgba(0,0,0,.4);
}

.hero[style*="background-image"] .hero-subtitle {
    color: rgba(255,255,255,.9);
}

.hero[style*="background-image"] .hero-text h1 .highlight {
    /*background: linear-gradient(180deg, #ffffff, #e7e2de);*/
    font-size: 2.0rem;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text h1 .highlight {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text .hero-subtitle {
    font-size: 1.2rem;
    color: var(--color-gray);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 999px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    letter-spacing: 0.01em;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
    color: white;
    box-shadow: 0 4px 14px rgba(30, 64, 175, 0.3);
}

    .btn-primary:hover {
        background: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
        box-shadow: 0 6px 20px rgba(30, 64, 175, 0.4);
        transform: translateY(-1px);
        color: white;
    }

.btn-outline {
    background: #101e2d;
    color: #2183e9;
    border: 1px solid #2183e9;
}

    .btn-outline:hover {
        background: #2183e9;
        color: white;
    }

.btn-slide {
    position: relative;
    overflow: hidden;
}

    .btn-slide .btn-text {
        display: inline-block;
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .btn-slide .btn-arrow {
        position: absolute;
        top: 50%;
        right: 20px;
        transform: translate(18px, -50%);
        opacity: 0;
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
        font-size: 1.15em;
        line-height: 1;
    }

    .btn-slide:hover .btn-text {
        transform: translateX(-12px);
    }

    .btn-slide:hover .btn-arrow {
        transform: translate(0, -50%);
        opacity: 1;
    }

.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-dashboard {
    width: 100%;
    max-width: 500px;
    aspect-ratio: 4/3;
    background: linear-gradient(145deg, #ffffff, #f1f5f9);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

    .hero-dashboard::before {
        content: "";
        position: absolute;
        inset: 16px;
        border-radius: 8px;
        background: linear-gradient(90deg, var(--color-primary) 30%, var(--color-accent) 70%);
        opacity: 0.06;
    }

.dashboard-placeholder {
    text-align: center;
    color: var(--color-gray-light);
    position: relative;
    z-index: 1;
}

    .dashboard-placeholder .db-icon {
        font-size: 3.5rem;
        margin-bottom: 12px;
        display: block;
    }

    .dashboard-placeholder span {
        font-size: 0.95rem;
        font-weight: 500;
    }

.hero-screenshot {
    width: 100%;
    max-width: 540px;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 50px -15px rgba(30, 64, 175, 0.25);
    border: 1px solid var(--color-border);
    transition: transform var(--transition), box-shadow var(--transition);
}

    .hero-screenshot:hover {
        transform: translateY(-4px);
        box-shadow: 0 25px 60px -15px rgba(30, 64, 175, 0.35);
    }

/* ============================================================
   FEATURE CARDS (Shared — Home & Products)
   ============================================================ */

.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

a.card {
    display: flex;
    flex-direction: column;
    color: inherit;
    text-decoration: none;
}

.card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.03);
}

    .card:hover {
        box-shadow: 0 12px 28px rgba(0,0,0,0.08), 0 4px 10px rgba(0,0,0,0.04);
        transform: translateY(-3px);
        border-color: transparent;
    }

.card-img {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
    display: block;
    background: linear-gradient(135deg, #f0f4ff, #e2e8f0);
}

.card-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

    .card-body h3 {
        margin-bottom: 8px;
        font-size: 1.1rem;
    }

    .card-body p {
        font-size: 0.9rem;
        color: var(--color-gray);
        flex: 1;
        margin-bottom: 16px;
    }

.card-link {
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.9rem;
}

    .card-link:hover {
        text-decoration: underline;
    }

.card-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.1), rgba(14, 165, 233, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.card h3 {
    margin-bottom: 10px;
}

.card p {
    font-size: 0.95rem;
    /*color: var(--color-gray)*/;
    color: #312b2b;
    margin-bottom: 0;
}

/* --- Stat Bar --- */
.stat-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    text-align: center;
    padding: 48px 0;
}

.stat-item {
    position: relative;
    background: linear-gradient(180deg, #ffffff 0%, #f5f8ff 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px 20px 28px;
    box-shadow: 0 2px 10px rgba(15, 23, 42, 0.05);
    transition: all var(--transition);
    overflow: hidden;
}

    .stat-item::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        /*background: linear-gradient(90deg, #3b82f6 0%, #6366f1 100%);*/
    }

    .stat-item:hover {
        box-shadow: 0 14px 30px rgba(37, 99, 235, 0.16);
        transform: translateY(-4px);
    }

    .stat-item .stat-number {
        font-size: 2.6rem;
        font-weight: 800;
        color: #2563eb;
        background: linear-gradient(135deg, #2563eb 0%, #6366f1 100%);
        -webkit-background-clip: text;
        background-clip: text;
        -webkit-text-fill-color: transparent;
        letter-spacing: -0.02em;
    }

    .stat-item .stat-label {
        font-size: 0.95rem;
        color: var(--color-gray);
        margin-top: 6px;
    }

/* ============================================================
   PAGE BANNER (Sub-pages)
   ============================================================ */

.page-banner {
    position: relative;
    min-height: 340px;
    display: flex;
    align-items: center;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    margin-top: var(--header-height);
    z-index: 0;
}

    .page-banner .container {
        position: relative;
        z-index: 2;
    }

    .page-banner h1 {
        font-size: 1.75rem;
        color: #fff;
        text-shadow: 0 2px 8px rgba(0,0,0,.35);
        margin-bottom: 6px;
    }

.banner-desc {
    max-width: 420px;
    font-size: 0.9rem;
    line-height: 1.7;
    color: rgba(255,255,255,.85);
    text-shadow: 0 1px 4px rgba(0,0,0,.25);
    margin-top: 8px;
}

.page-banner .breadcrumb {
    font-size: 0.95rem;
    color: rgba(255,255,255,.75);
}

    .page-banner .breadcrumb a {
        color: rgba(255,255,255,.65);
        transition: color var(--transition);
    }

        .page-banner .breadcrumb a:hover {
            color: #fff;
        }

.breadcrumb-bar {
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    padding: 12px 0;
    font-size: 0.9rem;
    color: var(--color-gray);
}

    .breadcrumb-bar a {
        color: var(--color-primary);
        text-decoration: none;
    }

        .breadcrumb-bar a:hover {
            text-decoration: underline;
        }

    .breadcrumb-bar .crumb-sep {
        margin: 0 8px;
        color: var(--color-gray-light);
    }

    .breadcrumb-bar .crumb-current {
        color: var(--color-text);
    }

@media (max-width: 768px) {
    .page-banner {
        min-height: 220px;
    }
}

/* ============================================================
   PRODUCTS PAGE
   ============================================================ */

.feature-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    padding: 64px 0;
    border-bottom: 1px solid var(--color-border);
}

    .feature-block:last-child {
        border-bottom: none;
    }

    .feature-block.reverse {
        direction: rtl;
    }

        .feature-block.reverse .feature-content {
            direction: ltr;
        }

.feature-image {
    aspect-ratio: 16/10;
    background: linear-gradient(145deg, #f8fafc, #e2e8f0);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--color-gray-light);
    overflow: hidden;
}

.feature-screenshot {
    width: 540px;
    height: 332px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: 0 12px 40px -12px rgba(0, 0, 0, 0.15);
    border: 1px solid var(--color-border);
    transition: transform var(--transition), box-shadow var(--transition);
    flex-shrink: 0;
}

    .feature-screenshot:hover {
        transform: translateY(-3px);
        box-shadow: 0 18px 50px -12px rgba(30, 64, 175, 0.3);
    }

.feature-content h3 {
    margin-bottom: 16px;
}

.feature-content p {
    margin-bottom: 12px;
}

.feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 20px;
}

.module-shot {
    border: 1px solid var(--color-border);
    border-radius: 12px;
    overflow: hidden;
    background: #fff;
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

    .module-shot:hover {
        transform: translateY(-4px);
        box-shadow: 0 18px 40px rgba(30, 64, 175, 0.16);
    }

    .module-shot .shot-topbar {
        display: flex;
        align-items: center;
        gap: 6px;
        padding: 10px 14px;
        background: #f1f5f9;
        border-bottom: 1px solid var(--color-border);
    }

    .module-shot .shot-dot {
        width: 10px;
        height: 10px;
        border-radius: 50%;
        flex-shrink: 0;
    }

    .module-shot .dot-red {
        background: #f87171;
    }

    .module-shot .dot-yellow {
        background: #fbbf24;
    }

    .module-shot .dot-green {
        background: #34d399;
    }

    .module-shot .shot-title {
        margin-left: 8px;
        font-size: 0.8rem;
        color: var(--color-gray);
    }

    .module-shot img {
        display: block;
        /*width: 100%;*/
        height: auto;
    }

.manual-card {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 20px;
    padding: 18px 20px;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    background: linear-gradient(135deg, #f0f4ff 0%, #f8fafc 100%);
    text-decoration: none;
    transition: all 0.3s ease;
}

    .manual-card:hover {
        border-color: #2563eb;
        box-shadow: 0 8px 20px rgba(37, 99, 235, 0.12);
        transform: translateY(-2px);
    }

    .manual-card .manual-icon {
        width: 48px;
        height: 48px;
        border-radius: 12px;
        background: linear-gradient(135deg, #2563eb, #6366f1);
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 22px;
        flex-shrink: 0;
    }

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

    .manual-card .manual-title {
        font-size: 1rem;
        font-weight: 600;
        color: var(--color-dark);
    }

    .manual-card .manual-desc {
        font-size: 0.85rem;
        color: var(--color-gray);
        margin-top: 2px;
    }

    .manual-card .manual-arrow {
        font-size: 1.1rem;
        color: #2563eb;
        flex-shrink: 0;
        transition: transform 0.3s ease;
    }

    .manual-card:hover .manual-arrow {
        transform: translateX(4px);
    }

.tag {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    background: rgba(30, 64, 175, 0.07);
    color: var(--color-primary);
}

/* ============================================================
   ABOUT PAGE
   ============================================================ */

.about-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-image {
    aspect-ratio: 4/3;
    background: linear-gradient(145deg, #f0f4ff, #e0e7ff);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    color: var(--color-gray-light);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

    .timeline::before {
        content: "";
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        top: 0;
        bottom: 0;
        width: 3px;
        background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-accent) 50%, var(--color-primary-lighter) 100%);
        border-radius: 2px;
    }

.timeline-item {
    position: relative;
    margin-bottom: 48px;
    display: flex;
    align-items: flex-start;
    gap: 0;
}

    .timeline-item:nth-child(odd) {
        flex-direction: row;
    }

    .timeline-item:nth-child(even) {
        flex-direction: row-reverse;
    }

.tl-year {
    flex: 0 0 120px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

    .tl-year span {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 72px;
        height: 72px;
        border-radius: 50%;
        background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
        color: #fff;
        font-size: 1.1rem;
        font-weight: 800;
        letter-spacing: 0.02em;
        box-shadow: 0 8px 24px rgba(30, 64, 175, 0.25);
        position: relative;
        z-index: 1;
    }

.tl-card {
    flex: 1;
    max-width: 400px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    transition: all var(--transition);
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

    .tl-card:hover {
        box-shadow: 0 8px 28px rgba(0,0,0,0.08);
        transform: translateY(-2px);
    }

.tl-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    line-height: 1;
}

.tl-body h4 {
    margin-bottom: 4px;
    font-size: 1.05rem;
}

.tl-body p {
    font-size: 0.9rem;
    color: var(--color-gray);
    margin: 0;
}

@media (max-width: 768px) {
    .timeline::before {
        left: 28px;
    }

    .timeline-item {
        flex-direction: row !important;
        padding-left: 56px;
        margin-bottom: 32px;
    }

    .tl-year {
        flex: 0 0 auto;
        position: absolute;
        left: 0;
        padding-top: 0;
    }

        .tl-year span {
            width: 52px;
            height: 52px;
            font-size: 0.85rem;
        }

    .tl-card {
        max-width: 100%;
    }
}

/* ============================================================
   CONTACT PAGE
   ============================================================ */

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 64px;
}

.contact-info h3 {
    margin-bottom: 8px;
}

.contact-methods {
    margin-top: 32px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-method {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

    .contact-method .cm-icon {
        width: 48px;
        height: 48px;
        flex-shrink: 0;
        border-radius: 12px;
        background: rgba(30, 64, 175, 0.08);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.25rem;
    }

    .contact-method h4 {
        margin-bottom: 2px;
    }

    .contact-method p {
        font-size: 0.95rem;
        margin-bottom: 0;
    }

/* --- Form --- */
.contact-form {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.form-group {
    margin-bottom: 20px;
}

    .form-group label {
        display: block;
        font-size: 0.9rem;
        font-weight: 600;
        color: var(--color-text);
        margin-bottom: 6px;
    }

        .form-group label .required {
            color: #ef4444;
            margin-left: 2px;
        }

    .form-group input,
    .form-group select,
    .form-group textarea {
        width: 100%;
        padding: 12px 16px;
        border: 1px solid var(--color-border);
        border-radius: var(--radius);
        font-size: 0.95rem;
        font-family: var(--font-family);
        color: var(--color-text);
        background: var(--color-white);
        transition: border-color var(--transition), box-shadow var(--transition);
    }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--color-primary-lighter);
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
        }

    .form-group textarea {
        resize: vertical;
        min-height: 140px;
    }

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.btn-submit {
    width: 100%;
    padding: 16px;
    font-size: 1.05rem;
}

.form-feedback {
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    margin-top: 16px;
    display: none;
}

    .form-feedback.success {
        display: block;
        background: #f0fdf4;
        color: #166534;
        border: 1px solid #bbf7d0;
    }

    .form-feedback.error {
        display: block;
        background: #fef2f2;
        color: #991b1b;
        border: 1px solid #fecaca;
    }

/* ============================================================
   ICON SYSTEM (Blue / Orange gradient circles)
   ============================================================ */

.card-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: #fff;
    margin-bottom: 16px;
    flex-shrink: 0;
}

    .card-icon i {
        font-size: 1rem;
        line-height: 1;
    }

.icon-blue {
    background: linear-gradient(135deg, #1e40af, #3b82f6);
}

.icon-orange {
    background: linear-gradient(135deg, #f97316, #fb923c);
}

.icon-teal {
    background: linear-gradient(135deg, #0d9488, #14b8a6);
}

.feature-image {
    aspect-ratio: 16/10;
    background: linear-gradient(145deg, #f8fafc, #e2e8f0);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--color-gray-light);
    overflow: hidden;
}

/* ============================================================
   HOMEPAGE NEWS
   ============================================================ */

.news-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.news-loading {
    grid-column: 1 / -1;
    text-align: center;
    color: var(--gray-light);
    padding: 40px;
    font-size: 0.95rem;
}

.news-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.03);
}

    .news-card:hover {
        box-shadow: 0 12px 28px rgba(0,0,0,0.08), 0 4px 10px rgba(0,0,0,0.04);
        transform: translateY(-3px);
        border-color: transparent;
    }

.news-card-image {
    width: 100%;
    aspect-ratio: 16/9;
    overflow: hidden;
    background: linear-gradient(135deg, #f0f4ff, #e2e8f0);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--color-gray-light);
}

    .news-card-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.4s ease;
    }

.news-card:hover .news-card-image img {
    transform: scale(1.08);
}

.news-card-body {
    padding: 20px 24px 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

    .news-card-body h3 {
        font-size: 1.05rem;
        margin-bottom: 8px;
        line-height: 1.5;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

        .news-card-body h3 a {
            color: var(--color-dark);
            transition: color var(--transition);
        }

            .news-card-body h3 a:hover {
                color: var(--color-primary);
            }

    .news-card-body .news-summary {
        font-size: 0.88rem;
        color: var(--color-gray);
        line-height: 1.6;
        flex: 1;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        margin-bottom: 12px;
    }

.news-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--color-gray-light);
    padding-top: 12px;
    border-top: 1px solid var(--color-border);
}

    .news-card-footer .news-date {
        color: var(--color-gray);
    }

.news-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 48px;
    color: var(--color-gray-light);
    font-size: 0.95rem;
}

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

@media (max-width: 900px) {
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .news-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================================
   PHOTO CAROUSEL
   ============================================================ */

.carousel-wrap {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 1200px;
    margin: 0 auto;
}

.carousel-viewport {
    width: 968px;
    overflow: hidden;
    flex-shrink: 0;
}

.carousel-track {
    display: flex;
    gap: 16px;
    transition: transform 0.5s ease;
}

    .carousel-track img {
        width: 230px;
        height: 160px;
        object-fit: cover;
        border-radius: 8px;
        flex-shrink: 0;
        box-shadow: 0 2px 8px rgba(0,0,0,0.08);
        transition: transform 0.3s ease;
    }

        .carousel-track img:hover {
            transform: scale(1.03);
        }

.carousel-arrow {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: #fff;
    border: 1px solid #e2e8f0;
    font-size: 1.5rem;
    color: #475569;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.2s;
    z-index: 1;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    margin: 0 12px;
}

    .carousel-arrow:hover {
        background: #1e40af;
        color: #fff;
        border-color: #1e40af;
    }

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
}

    .carousel-dots span {
        width: 10px;
        height: 10px;
        border-radius: 50%;
        background: #cbd5e1;
        cursor: pointer;
        transition: all 0.2s;
    }

        .carousel-dots span.active {
            background: #1e40af;
            width: 24px;
            border-radius: 5px;
        }

@media (max-width: 1100px) {
    .carousel-viewport {
        width: 722px;
    }
}

@media (max-width: 768px) {
    .carousel-viewport {
        width: 472px;
    }

    .carousel-track img {
        width: 230px;
        height: 144px;
    }
}

/* ============================================================
   MODULE SIDEBAR
   ============================================================ */

.module-layout {
    display: flex;
    gap: 32px;
    align-items: flex-start;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 40px 24px;
}

.module-sidebar {
    width: 220px;
    flex-shrink: 0;
    position: sticky;
    top: 96px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 16px;
    box-shadow: var(--shadow-sm);
}

    .module-sidebar h3 {
        font-size: 0.9rem;
        color: var(--color-primary);
        padding: 8px 12px;
        margin-bottom: 8px;
        border-bottom: 1px solid var(--color-border);
    }

    .module-sidebar a {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 10px 12px;
        border-radius: 6px;
        font-size: 1rem;
        color: var(--color-text-secondary);
        transition: all var(--transition);
        margin-bottom: 2px;
    }

        .module-sidebar a i {
            width: 32px;
            height: 32px;
            line-height: 32px;
            text-align: center;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .module-sidebar a:hover {
            background: rgba(30, 64, 175, 0.06);
            color: var(--color-primary);
        }

        .module-sidebar a.active {
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
        }

.module-content {
    flex: 1;
    min-width: 0;
}

    .module-content .feature-block {
        grid-template-columns: 1fr;
        padding-top: 0px;
    }

    .module-content .section {
        padding: 0px;
    }

@media (max-width: 900px) {
    .module-layout {
        flex-direction: column;
    }

    .module-sidebar {
        width: 100%;
        position: static;
    }
}

/* ============================================================
   FEATURE TABLE (Module pages)
   ============================================================ */

.feature-table-wrap {
    overflow-x: auto;
}

.feature-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    background: #fff;
}

    .feature-table th,
    .feature-table td {
        border: 1px solid var(--color-border);
        padding: 12px 16px;
        text-align: left;
        vertical-align: middle;
    }

    .feature-table thead th {
        background: #f0f4ff;
        color: var(--color-dark);
        font-weight: 700;
    }

    .feature-table tbody tr:hover {
        background: #f8fafc;
    }

    .feature-table td[rowspan] {
        background: transparent;
        font-weight: 600;
        color: var(--color-text);
        text-align: center;
    }

    .feature-table a {
        color: var(--color-primary-light);
        text-decoration: none;
        font-weight: 500;
        transition: color 0.2s;
    }

        .feature-table a:hover {
            color: var(--color-primary);
            text-decoration: underline;
        }

/* ============================================================
   CASES PAGE
   ============================================================ */

.case-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 40px;
    margin-bottom: 32px;
    transition: all var(--transition);
    box-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.03);
}

    .case-card:last-child {
        margin-bottom: 0;
    }

    .case-card:hover {
        box-shadow: 0 12px 28px rgba(0,0,0,0.08), 0 4px 10px rgba(0,0,0,0.04);
        transform: translateY(-2px);
    }

.case-header {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 28px;
}

    .case-header h3 {
        margin-bottom: 0;
    }

.case-logo {
    width: 150px;
    height: 50px;
    object-fit: contain;
    object-position: left center;
    flex-shrink: 0;
}

.case-header-text {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.case-industry-tag {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.1), rgba(14, 165, 233, 0.1));
    color: var(--color-primary);
}

.case-meta {
    display: flex;
    gap: 40px;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--color-border);
    flex-wrap: wrap;
}

.case-meta-item strong {
    display: block;
    font-size: 0.8rem;
    color: var(--color-gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}

.case-meta-item span {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text);
}

.case-info h4 {
    font-size: 1.05rem;
    margin-top: 20px;
    margin-bottom: 8px;
    color: var(--color-primary);
}

    .case-info h4:first-of-type {
        margin-top: 0;
    }

.case-info p {
    font-size: 0.95rem;
    line-height: 1.8;
}

.case-results {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 24px;
    padding: 24px;
    background: var(--color-bg-alt);
    border-radius: var(--radius);
}

.case-result {
    text-align: center;
}

    .case-result .result-number {
        display: block;
        font-size: 1.75rem;
        font-weight: 800;
        color: var(--color-primary);
        letter-spacing: -0.02em;
    }

    .case-result .result-label {
        font-size: 0.85rem;
        color: var(--color-gray);
        margin-top: 2px;
    }

/* --- Testimonials --- */

.testimonial-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    position: relative;
}

    .testimonial-card::before {
        content: "\201C";
        position: absolute;
        top: 20px;
        left: 28px;
        font-size: 4rem;
        line-height: 1;
        color: rgba(30, 64, 175, 0.12);
        font-family: Georgia, serif;
        pointer-events: none;
    }

.testimonial-quote {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
    padding-top: 8px;
    position: relative;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
    border-top: 1px solid var(--color-border);
    padding-top: 20px;
}

.testimonial-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 700;
    flex-shrink: 0;
}

.testimonial-author strong {
    display: block;
    font-size: 0.9rem;
    color: var(--color-text);
}

.testimonial-author span {
    font-size: 0.8rem;
    color: var(--color-gray);
}

@media (max-width: 768px) {
    .case-card {
        padding: 24px;
    }

    .case-results {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .case-meta {
        gap: 20px;
    }

    .case-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ============================================================
   FOOTER
   ============================================================ */

.site-footer {
    background: #0f172a url('../images/footer-bg.jpg') center/cover no-repeat;
    color: rgba(255, 255, 255, 0.7);
    padding: 40px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 20px;
}

.footer-brand .logo {
    color: white;
    margin-bottom: 16px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.55);
    font-size: 0.9rem;
}

.footer-col h4 {
    color: white;
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.footer-col a {
    display: block;
    color: rgba(255, 255, 255, 0.55);
    font-size: 0.9rem;
    padding: 4px 0;
    transition: color var(--transition);
}

    .footer-col a:hover {
        color: white;
    }

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 24px;
    text-align: center;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.4);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1024px) {
    .card-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stat-bar {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .hero-inner {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .hero-visual {
        order: -1;
    }

    .hero-dashboard {
        max-width: 400px;
    }

    .feature-block {
        grid-template-columns: 1fr;
        gap: 36px;
    }

        .feature-block.reverse {
            direction: ltr;
        }

    .about-intro {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.65rem;
    }

    .section {
        padding: 64px 0;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .card-grid {
        grid-template-columns: 1fr;
    }

    .stat-bar {
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .hero {
        padding: 120px 0 72px;
    }

    .hero-text h1 {
        font-size: 1.75rem;
    }

    .page-banner {
        padding: 120px 0 48px;
    }

        .page-banner h1 {
            font-size: 1.35rem;
        }

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

    .feature-screenshot {
        width: 100%;
        height: auto;
        max-width: 540px;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: white;
        border-bottom: 1px solid var(--color-border);
        padding: 12px 16px;
        box-shadow: var(--shadow-lg);
        gap: 2px;
        max-height: calc(100vh - var(--header-height));
        overflow-y: auto;
    }

        .nav-links.open {
            display: flex;
        }

        .nav-links > li {
            width: 100%;
        }

            .nav-links > li > a {
                width: 100%;
                padding: 12px 16px;
                justify-content: space-between;
            }

                .nav-links > li > a::before {
                    left: 12px;
                    right: 12px;
                    bottom: 2px;
                    height: 3px;
                }

                .nav-links > li > a::after {
                    opacity: 1;
                    transition: transform 0.2s ease;
                }

            .nav-links > li.dropdown-open > a::after {
                transform: rotate(180deg);
            }

        /* Mobile dropdown — flat grid */
        .nav-links .dropdown {
            position: static;
            transform: none;
            opacity: 1;
            visibility: visible;
            box-shadow: none;
            border: none;
            border-radius: 8px;
            padding: 12px;
            display: none;
            gap: 4px;
            background: var(--color-bg-alt);
            margin: 2px 8px;
            grid-template-columns: repeat(2, 1fr) !important;
            min-width: unset !important;
        }

    .dropdown-col {
        border-right: none !important;
        padding: 4px 8px;
    }

    .dropdown-col-title {
        font-size: 0.75rem;
        padding: 6px 10px 8px;
    }

    .nav-links > li.dropdown-open .dropdown {
        display: grid;
    }

    .nav-links .dropdown a {
        padding: 10px 8px;
        font-size: 0.82rem;
        flex-direction: row;
        gap: 8px;
        justify-content: flex-start;
        min-width: unset;
    }
}

.nav-links > li:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: none;
}

.contact-map {
    padding-left: 60px;
    padding-top: 30px;
}

.mobile-menu-btn {
    display: flex !important;
}

}

/* --- Mobile menu button --- */
.mobile-menu-btn {
    display: none;
    width: 40px;
    height: 40px;
    border: none;
    background: none;
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 4px;
}

    .mobile-menu-btn span {
        display: block;
        width: 24px;
        height: 2px;
        background: var(--color-text);
        border-radius: 2px;
        transition: all var(--transition);
    }

    .mobile-menu-btn.open span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .mobile-menu-btn.open span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-btn.open span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

/* --- 我的自定义样式 --- */
/*====================================================================*/
.my_icon {
}
    .my_icon::before {
        content: "\f0f3";
    }

.my_link {
    padding-top: 30px;
    font-size: 0.9rem;
}

.my-btn-outline {
    background:white;
    color: #2183e9;
    border: 1px solid #2183e9;
}

    .my-btn-outline:hover {
        background: #2183e9;
        color: #2183e9;
    }

/*====================================================================*/