/* ========================================================================
   遠漢科技品牌樣式：米色 + 墨綠、無襯線標題
   最後載入，覆蓋 design-system / components 與舊主題變數
   ======================================================================== */

:root {
    --brand-ivory: #F5F2EB;
    --brand-paper: #FBFAF6;
    --brand-surface: #FFFFFF;
    --brand-ink: #1E2420;
    --brand-text: #3C4440;
    --brand-muted: #6F7771;
    --brand-line: #E4DFD3;
    --brand-line-strong: #D3CCBC;
    --brand-green: #4B6B52;
    --brand-green-dark: #34503B;
    --brand-green-soft: #E7EDE4;
    --brand-clay: #A9664A;
    --brand-night: #1C2620;

    --brand-radius-sm: 8px;
    --brand-radius: 14px;
    --brand-radius-lg: 20px;
    --brand-shadow: 0 1px 2px rgba(30, 36, 32, 0.04), 0 8px 24px rgba(30, 36, 32, 0.06);
    --brand-shadow-hover: 0 2px 4px rgba(30, 36, 32, 0.05), 0 16px 40px rgba(30, 36, 32, 0.10);

    --font-family-base: 'Inter', 'Noto Sans TC', -apple-system, BlinkMacSystemFont, "PingFang TC", "Microsoft JhengHei", sans-serif;
    --font-family-heading: 'Inter', 'Noto Sans TC', -apple-system, BlinkMacSystemFont, "PingFang TC", "Microsoft JhengHei", sans-serif;
    --font-primary: var(--font-family-base);
    --font-heading: var(--font-family-heading);
    --font-base: var(--font-family-base);

    --theme-primary: var(--brand-green);
    --theme-primary-light: #6E8C70;
    --theme-primary-dark: var(--brand-green-dark);
    --color-primary: var(--brand-green);
    --color-primary-light: #6E8C70;
    --color-primary-dark: var(--brand-green-dark);
    --primary-color: var(--brand-green);
    --color-secondary: var(--brand-clay);
    --color-interactive: var(--brand-green);
    --color-interactive-hover: var(--brand-green-dark);
    --color-interactive-soft: var(--brand-green-soft);
    --color-text-primary: var(--brand-ink);
    --color-text-secondary: var(--brand-text);
    --color-text-muted: var(--brand-muted);
    --color-surface: var(--brand-surface);
    --color-surface-soft: var(--brand-paper);
    --color-gray-100: var(--brand-paper);
    --color-gray-200: #EFEBE2;
    --color-gray-300: var(--brand-line);
    --gradient-primary: var(--brand-green);
    --bg-color: var(--brand-ivory);
    --text-color: var(--brand-text);
}

/* === 字體：Inter 負責英數，Noto Sans TC 負責中文 === */
html body,
html body * {
    font-family: var(--font-family-base);
}
body {
    background: var(--brand-ivory);
    color: var(--brand-text);
    letter-spacing: 0;
    font-weight: 400;
    font-feature-settings: "tnum" 0, "cv11" 1;
}
body p,
body li {
    font-weight: 400;
    line-height: 1.8;
}
h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6,
.section-title-main,
.page-title,
h2.page-title {
    font-family: var(--font-family-heading);
    color: var(--brand-ink);
    font-weight: 700;
    letter-spacing: -0.01em;
}
.text-primary { color: var(--brand-green) !important; }
.bg-light { background-color: var(--brand-paper) !important; }
a { color: var(--brand-green); }
a:hover { color: var(--brand-green-dark); }

/* === 共用區塊標題 === */
.section-kicker {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--brand-clay);
    margin-bottom: 0.75rem;
}
.section-title-main {
    font-size: clamp(1.75rem, 3vw, 2.4rem) !important;
    color: var(--brand-ink) !important;
    line-height: 1.3;
}

/* === 導覽列 === */
.navbar {
    background: rgba(245, 242, 235, 0.86) !important;
    backdrop-filter: saturate(160%) blur(16px);
    -webkit-backdrop-filter: saturate(160%) blur(16px);
    box-shadow: none !important;
    border-bottom: 1px solid rgba(211, 204, 188, 0.6);
    padding: 0.6rem 0 !important;
}
.navbar-brand {
    background: none !important;
    -webkit-text-fill-color: initial !important;
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0;
    text-decoration: none;
}
.navbar-brand:hover { transform: none !important; }
.brand-mark {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    line-height: 1;
}
.brand-mark-han {
    font-family: 'Inter', sans-serif !important;
    font-weight: 300;
    font-size: 1.65rem;
    letter-spacing: 0.32em;
    margin-right: -0.32em;
    color: var(--brand-ink);
}
.brand-mark-tech {
    font-family: 'Inter', sans-serif !important;
    font-size: 0.5rem;
    font-weight: 500;
    letter-spacing: 0.42em;
    margin-right: -0.42em;
    color: var(--brand-muted);
    margin-top: 0.3rem;
}
.brand-mark-zh {
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    color: var(--brand-ink);
    padding-left: 0.75rem;
    border-left: 1px solid var(--brand-line-strong);
}
.navbar .nav-link {
    color: var(--brand-text) !important;
    font-weight: 500 !important;
    font-size: 0.97rem !important;
    letter-spacing: 0.04em !important;
    padding: 0.5rem 0.9rem !important;
}
.navbar .nav-link::after {
    background: var(--brand-green) !important;
    height: 1.5px !important;
    bottom: 0.15rem !important;
}
.navbar .nav-link:hover,
.navbar .nav-link.active {
    color: var(--brand-green-dark) !important;
}
.navbar .nav-link.active::after { width: calc(100% - 1.8rem); }
.navbar .nav-cta {
    margin-left: 0.75rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--brand-ink);
    color: #fff !important;
    padding: 0.55rem 1.2rem;
    border-radius: 999px;
    font-size: 0.92rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-decoration: none;
    transition: background 0.2s ease, transform 0.2s ease;
}
.navbar .nav-cta:hover {
    background: var(--brand-green-dark);
    color: #fff !important;
    transform: translateY(-1px);
}
.navbar .nav-cta svg { width: 14px; height: 14px; }
@media (max-width: 991.98px) {
    .navbar .nav-cta { margin: 0.75rem 0 0.5rem; justify-content: center; }
    .brand-mark-zh { display: none; }
}

/* === 按鈕 === */
.btn { border-radius: 999px !important; letter-spacing: 0.04em; font-weight: 600; }
.btn::after { display: none; }
.btn-primary {
    background: var(--brand-ink) !important;
    border: 1px solid var(--brand-ink) !important;
    color: #fff !important;
    box-shadow: none !important;
}
.btn-primary:hover,
.btn-primary:focus-visible {
    background: var(--brand-green-dark) !important;
    border-color: var(--brand-green-dark) !important;
    transform: translateY(-1px);
}
.btn-outline-primary {
    color: var(--brand-ink) !important;
    border: 1px solid var(--brand-line-strong) !important;
    background: transparent !important;
}
.btn-outline-primary:hover,
.btn-outline-primary:focus-visible {
    background: var(--brand-ink) !important;
    border-color: var(--brand-ink) !important;
    color: #fff !important;
}
.btn-brand,
.btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-height: 50px;
    padding: 0 1.75rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.06em;
    text-decoration: none;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}
.btn-brand { background: var(--brand-ink); color: #fff; border: 1px solid var(--brand-ink); }
.btn-brand:hover { background: var(--brand-green-dark); border-color: var(--brand-green-dark); color: #fff; transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--brand-ink); border: 1px solid var(--brand-line-strong); }
.btn-ghost:hover { border-color: var(--brand-ink); color: var(--brand-ink); }
.btn-brand svg, .btn-ghost svg { width: 16px; height: 16px; }

/* === 卡片與圖片：統一圓角、陰影 === */
.card {
    border: 1px solid var(--brand-line) !important;
    border-radius: var(--brand-radius) !important;
    box-shadow: none !important;
    background: var(--brand-surface);
}
.product-card,
.related-product-card {
    border: 1px solid var(--brand-line) !important;
    border-radius: var(--brand-radius) !important;
    overflow: hidden;
    box-shadow: none !important;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    background: var(--brand-surface);
}
.product-card:hover,
.related-product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--brand-shadow-hover) !important;
    border-color: transparent !important;
}
.product-card .card-img-top,
.related-product-img { transition: transform 0.5s ease; }
.product-card:hover .card-img-top { transform: scale(1.04); }
.product-card .card-title { font-size: 1.15rem; font-weight: 700; color: var(--brand-ink); }
.product-card .card-text { color: var(--brand-muted) !important; font-size: 0.95rem; }

.container .row .col-md-6 img.img-fluid,
.product-detail .img-fluid,
.img-fluid.rounded.shadow {
    border-radius: var(--brand-radius) !important;
    box-shadow: none !important;
    border: 1px solid var(--brand-line);
    margin-bottom: 1.25rem !important;
}
.container .row .col-md-6 img.img-fluid:hover,
.product-detail .img-fluid:hover {
    transform: none !important;
    box-shadow: none !important;
}
.product-video,
.product-video video { border-radius: var(--brand-radius) !important; }

/* 產品詳情內文 */
.product-content { color: var(--brand-text); font-size: 1.02rem; }
.product-content h3 { font-size: 1.35rem; margin: 1.8rem 0 0.6rem; }
.product-content h4 { font-size: 1.12rem; margin: 1.4rem 0 0.5rem; color: var(--brand-green-dark); }
.product-content h5 { font-size: 1rem; margin: 1.2rem 0 0.4rem; }
.product-content > :first-child { margin-top: 0; }
.breadcrumb a { color: var(--brand-muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--brand-green-dark); }
.breadcrumb-item.active { color: var(--brand-ink); }

/* 產品列表分類鈕 */
.product-categories .btn { padding: 0.45rem 1.1rem; font-size: 0.92rem; }

/* === 頁尾 === */
.site-footer {
    background: var(--brand-night);
    color: rgba(255, 255, 255, 0.72);
    padding: 4.5rem 0 2rem;
    margin-top: 5rem;
}
.site-footer a { color: rgba(255, 255, 255, 0.72); text-decoration: none; transition: color 0.2s ease; }
.site-footer a:hover { color: #fff; }
.site-footer .brand-mark-han,
.site-footer .brand-mark-zh { color: #fff; }
.site-footer .brand-mark-tech { color: rgba(255, 255, 255, 0.5); }
.site-footer .brand-mark-zh { border-left-color: rgba(255, 255, 255, 0.2); }
.site-footer .footer-tagline { margin: 1.25rem 0 0; max-width: 340px; line-height: 1.8; }
.site-footer h4 {
    color: #fff;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 1.25rem;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 0.7rem; line-height: 1.6; }
.site-footer .footer-label { display: block; font-size: 0.78rem; color: rgba(255, 255, 255, 0.45); letter-spacing: 0.08em; }
.site-footer .footer-bottom {
    margin-top: 3.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.45);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}

/* === 捲動進場（由 js/reveal.js 加上 class） === */
.reveal {
    opacity: 0;
    translate: 0 18px;
    transition:
        opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1) var(--reveal-delay, 0ms),
        translate 0.7s cubic-bezier(0.22, 1, 0.36, 1) var(--reveal-delay, 0ms);
}
.reveal.is-visible { opacity: 1; translate: 0 0; }

/* === 浮動聯絡按鈕 === */
.float-contact {
    position: fixed;
    right: 20px;
    bottom: 92px;
    z-index: 1040;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
}
.float-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    height: 52px;
    padding: 0 1.1rem 0 0.95rem;
    border-radius: 999px;
    color: #fff;
    font-size: 0.92rem;
    font-weight: 600;
    text-decoration: none;
    box-shadow: 0 10px 28px rgba(30, 36, 32, 0.22);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.float-btn:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 14px 32px rgba(30, 36, 32, 0.28); }
.float-btn svg { width: 26px; height: 26px; flex: 0 0 26px; }
.float-line { background: #06C755; }
.float-phone { background: var(--brand-ink); display: none; }
.float-phone svg { width: 22px; height: 22px; flex-basis: 22px; }

@media (max-width: 767.98px) {
    .float-contact { right: 14px; bottom: 84px; }
    .float-btn { width: 52px; padding: 0; justify-content: center; }
    .float-label { display: none; }
    .float-phone { display: inline-flex; }
}

@media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; translate: none; transition: none; }
    .float-btn { transition: none; }
    .product-card, .related-product-card, .btn-brand, .navbar .nav-cta { transition: none; }
    .product-card:hover, .related-product-card:hover { transform: none; }
}