/* ============================================================
   SanliTek Official Site — Style
   Clean, professional, RWD
   ============================================================ */

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

:root {
    --color-primary: #1a3a5c;
    --color-accent: #2d7dd2;
    --color-accent-light: #e8f1fb;
    --color-bg: #f7f9fc;
    --color-card: #ffffff;
    --color-text: #2c3e50;
    --color-text-muted: #6b7c93;
    --color-border: #e3e8f0;
    --color-footer: #1a2a3a;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.06), 0 2px 4px rgba(0,0,0,0.04);
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC",
                 "Microsoft JhengHei", "Noto Sans TC", sans-serif;
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.7;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Header --- */
.site-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, #254e77 100%);
    color: #fff;
    padding: 48px 0 40px;
    text-align: center;
}

.company-name {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.company-name-en {
    font-size: 1rem;
    font-weight: 400;
    opacity: 0.75;
    margin-top: 4px;
    letter-spacing: 0.08em;
}

/* --- Hero --- */
.hero {
    text-align: center;
    padding: 48px 0 36px;
}

.hero h2 {
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.hero p {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    max-width: 580px;
    margin: 0 auto;
}

/* --- Section --- */
.info-section {
    padding: 0 0 44px;
}

.section-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--color-accent-light);
    display: inline-block;
}

/* --- Info Grid --- */
.info-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.info-card {
    background: var(--color-card);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    transition: box-shadow 0.2s;
}

.info-card:hover {
    box-shadow: var(--shadow-md);
}

.info-card-wide {
    grid-column: span 2;
}

.info-icon {
    font-size: 1.4rem;
    margin-bottom: 8px;
}

.info-label {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 4px;
}

.info-value {
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--color-text);
}

/* --- Badge --- */
.badge {
    display: inline-block;
    padding: 2px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.badge-active {
    background: #e6f4ea;
    color: #1e7e34;
}

/* --- Biz Grid --- */
.biz-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.biz-card {
    background: var(--color-card);
    border-radius: var(--radius);
    padding: 24px 20px;
    box-shadow: var(--shadow);
    border-top: 3px solid var(--color-accent);
    transition: box-shadow 0.2s, transform 0.2s;
}

.biz-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.biz-code {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--color-accent);
    font-family: "SF Mono", "Fira Code", monospace;
    margin-bottom: 8px;
}

.biz-card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--color-primary);
}

.biz-card p {
    font-size: 0.92rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* --- Contact --- */
.contact-section {
    background: var(--color-card);
    border-radius: var(--radius);
    padding: 36px 28px !important;
    margin-bottom: 44px;
    box-shadow: var(--shadow);
}

.contact-intro {
    color: var(--color-text-muted);
    margin-bottom: 20px;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.contact-card {
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    padding: 20px;
    text-align: center;
}

.contact-icon {
    font-size: 1.6rem;
    margin-bottom: 6px;
}

.contact-label {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 4px;
}

.contact-value {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-accent);
}

/* --- Footer --- */
.site-footer {
    background: var(--color-footer);
    color: rgba(255,255,255,0.65);
    text-align: center;
    padding: 28px 0;
    font-size: 0.88rem;
}

/* --- Product Showcase --- */
.product-section {
    margin-bottom: 20px;
}

.product-showcase {
    display: flex;
    gap: 24px;
}

.product-card {
    background: var(--color-card);
    border-radius: var(--radius);
    padding: 32px 28px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--color-accent);
    width: 100%;
    max-width: 600px;
    transition: box-shadow 0.2s, transform 0.2s;
}

.product-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.product-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 10px;
}

.product-logo {
    background: linear-gradient(135deg, #ff8c42, #ff5e62);
    color: #fff;
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    font-weight: 700;
    flex-shrink: 0;
}

.product-name {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-primary);
    margin: 0;
}

.product-slogan {
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--color-accent);
    margin-bottom: 10px;
}

.product-desc {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: 16px;
}

.product-features {
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px 16px;
}

.product-features li {
    font-size: 0.92rem;
    color: var(--color-text);
    line-height: 1.8;
}

.product-cta {
    display: inline-block;
    background: var(--color-accent);
    color: #fff;
    padding: 10px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: background 0.2s, transform 0.1s;
}

.product-cta:hover {
    background: #1a5ea8;
    transform: scale(1.02);
}

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

    .product-card {
        padding: 24px 20px;
    }
}

/* ============================================================
   RWD — Tablet
   ============================================================ */
@media (max-width: 768px) {

    .company-name {
        font-size: 1.7rem;
    }

    .hero h2 {
        font-size: 1.3rem;
    }

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

    .info-card-wide {
        grid-column: span 2;
    }

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

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

}

/* ============================================================
   RWD — Phone
   ============================================================ */
@media (max-width: 480px) {

    .container {
        padding: 0 16px;
    }

    .site-header {
        padding: 32px 0 28px;
    }

    .company-name {
        font-size: 1.4rem;
    }

    .hero {
        padding: 32px 0 24px;
    }

    .hero h2 {
        font-size: 1.15rem;
    }

    .hero p {
        font-size: 0.95rem;
    }

    .hero-br {
        display: none;
    }

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

    .info-card-wide {
        grid-column: span 1;
    }

    .section-title {
        font-size: 1.1rem;
    }

}