/* / 首頁專用樣式（行銷頁，仿 SaaS landing 風格） */

/* ===== 共用 ===== */

.home-section {
    padding: 40px 24px 80px;
    max-width: 1200px;
    margin: 0 auto;
}
.home-section-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin: 0 0 12px;
    color: var(--c-text-strong);
    letter-spacing: -0.01em;
}
.home-section-sub {
    text-align: center;
    color: var(--c-text-muted);
    font-size: 16px;
    max-width: 560px;
    margin: 0 auto 12px;
    line-height: 1.6;
}

/* 大號 / 框線按鈕 */
.btn-lg {
    padding: 14px 28px;
    font-size: 15px;
    border-radius: 10px;
    gap: 8px;
}
.btn-outline {
    background: var(--c-surface);
    color: var(--c-text-strong);
    border-color: var(--c-border);
}
.btn-outline:hover {
    border-color: var(--c-border-strong);
    background: var(--c-surface-2);
}

/* ===== Hero ===== */

.home-hero {
    padding: 80px 24px 40px;
}
.home-hero-inner {
    max-width: 760px;
    margin: 0 auto;
    text-align: center;
}
.home-pill {
    display: inline-block;
    padding: 6px 14px;
    background: var(--c-primary-soft);
    color: var(--c-primary);
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 28px;
}
.home-hero-title {
    font-size: 64px;
    font-weight: 800;
    line-height: 1.05;
    margin: 0 0 24px;
    color: var(--c-text-strong);
    letter-spacing: -0.02em;
}
.home-hero-title-grad {
    background: linear-gradient(135deg, #2563eb 0%, #60a5fa 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
.home-hero-sub {
    font-size: 18px;
    color: var(--c-text-muted);
    line-height: 1.7;
    max-width: 620px;
    margin: 0 auto 36px;
}
.home-hero-cta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

/* ===== App Screenshot ===== */

.home-mockup-wrap {
    padding: 0 24px 40px;
    max-width: 1080px;
    margin: 0 auto;
}
/* 截圖容器：高度由「寬度 ÷ 截圖長寬比」決定。
   截圖比例 2750×1940 ≈ 1.42:1。 */
.home-mockup-body {
    background: var(--c-surface-2);
    border-radius: 12px;
    aspect-ratio: 1.42 / 1;
    overflow: hidden;
    position: relative;
}
.home-mockup-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.home-mockup-caption {
    color: var(--c-text-muted);
    font-size: 16px;
    font-weight: 500;
    margin: 0;
}
.home-mockup-caption-sub {
    color: var(--c-text-subtle);
    font-size: 13px;
    margin: 0;
}

/* ===== 截圖：單張（cover 填滿）===== */
.home-screen-single {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

/* ===== 截圖：輪播（≥2 張，cover 填滿）===== */
.home-carousel {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}
.home-carousel-track {
    display: flex;
    width: 100%;
    height: 100%;
    transition: transform 600ms cubic-bezier(0.4, 0, 0.2, 1);
}
.home-carousel-slide {
    flex: 0 0 100%;
    width: 100%;
    height: 100%;
}
.home-carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    user-select: none;
    -webkit-user-drag: none;
    display: block;
}

/* 上一張 / 下一張 圓形按鈕（半透明覆蓋於圖上） */
.home-carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(15, 23, 42, 0.08);
    color: #0f172a;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.18);
    transition: background-color 160ms ease, transform 160ms ease;
    padding: 0;
    z-index: 2;
}
.home-carousel-nav:hover {
    background: #fff;
    transform: translateY(-50%) scale(1.06);
}
.home-carousel-nav-prev { left: 16px; }
.home-carousel-nav-next { right: 16px; }

/* 底部圓點 indicator（圖片上的覆蓋層，固定半透明黑色不隨主題變） */
.home-carousel-dots {
    position: absolute;
    bottom: 16px;
    left: 0;
    right: 0;
    display: flex;
    gap: 8px;
    justify-content: center;
    z-index: 2;
}
.home-carousel-dot {
    width: 8px;
    height: 8px;
    padding: 0;
    border-radius: 50%;
    border: none;
    background: rgba(15, 23, 42, 0.35);
    cursor: pointer;
    transition: background-color 160ms ease, width 200ms ease;
}
.home-carousel-dot:hover { background: rgba(15, 23, 42, 0.55); }
.home-carousel-dot.is-active {
    background: #2563eb;
    width: 22px;
    border-radius: 4px;
}

/* ===== Features ===== */

.home-feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}
.home-feature {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: 14px;
    padding: 32px;
    box-shadow: var(--c-shadow-sm);
    transition: transform 200ms ease, box-shadow 200ms ease;
}
.home-feature:hover {
    transform: translateY(-4px);
    box-shadow: var(--c-shadow-md);
}
.home-feature-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    margin-bottom: 24px;
}
.home-feature-icon-blue { background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%); }
.home-feature-icon-cyan { background: linear-gradient(135deg, #22d3ee 0%, #0891b2 100%); }
.home-feature-icon-green { background: linear-gradient(135deg, #4ade80 0%, #16a34a 100%); }
.home-feature h3 {
    font-size: 20px;
    margin: 0 0 12px;
    color: var(--c-text-strong);
}
.home-feature p {
    color: var(--c-text-muted);
    font-size: 15px;
    line-height: 1.7;
    margin: 0;
}

/* ===== Built for Developers & Testers（藍漸層區，固定深藍配色不隨主題變） ===== */

.home-blue {
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #38bdf8 100%);
    color: #fff;
    padding: 24px 24px;
    border-radius: 16px;
    margin: auto 24px;
}
.home-blue-inner {
    max-width: 1080px;
    margin: 0 auto;
}
.home-blue-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin: 0 0 12px;
    letter-spacing: -0.01em;
}
.home-blue-sub {
    text-align: center;
    color: rgba(255, 255, 255, 0.85);
    font-size: 16px;
    margin: 0 auto 48px;
    max-width: 560px;
}
.home-blue-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
    max-width: 880px;
    margin: 0 auto;
}
.home-blue-card {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 24px 26px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 14px;
    backdrop-filter: blur(6px);
}
.home-blue-check {
    color: #4ade80;
    flex-shrink: 0;
    margin-top: 2px;
}
.home-blue-card h3 {
    font-size: 17px;
    margin: 0 0 6px;
    color: #fff;
    font-weight: 600;
}
.home-blue-card p {
    margin: 0;
    color: rgba(255, 255, 255, 0.82);
    font-size: 14px;
    line-height: 1.6;
}
/* 藍漸層區塊內的連結（聯絡 Email、相關文件等）：白色 + 下劃線；
   不沿用 var(--c-primary) 是因為主色為藍，會與藍底融在一起。 */
.home-blue a {
    color: #fff;
    text-decoration: underline;
    text-underline-offset: 2px;
    text-decoration-color: rgba(255, 255, 255, 0.5);
    transition: text-decoration-color 120ms ease;
}
.home-blue a:hover {
    text-decoration-color: #fff;
}

/* ===== System Requirements + CTA 雙欄 ===== */

.home-cta-card {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--c-shadow-md);
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    align-items: start;
}
.home-sysreq-title {
    font-size: 26px;
    font-weight: 700;
    margin: 0 0 24px;
    color: var(--c-text-strong);
}
.home-sysreq-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.home-sysreq-list li {
    display: flex;
    gap: 14px;
    padding: 12px 0;
    align-items: flex-start;
}
.home-sysreq-check {
    color: #16a34a;
    flex-shrink: 0;
    margin-top: 4px;
}
.home-sysreq-list strong {
    display: block;
    color: var(--c-text-strong);
    font-size: 15px;
    margin-bottom: 2px;
}
.home-sysreq-list span {
    color: var(--c-text-muted);
    font-size: 13px;
}

.home-cta-side {
    background: var(--c-surface-2);
    border-radius: 12px;
    padding: 28px;
}
.home-cta-side-title {
    font-size: 17px;
    font-weight: 600;
    margin: 0 0 16px;
    color: var(--c-text-strong);
}
.home-cta-side-meta {
    text-align: center;
    color: var(--c-text-muted);
    font-size: 13px;
    margin: 12px 0 0;
}
.home-cta-side-meta a { color: var(--c-primary); text-decoration: none; }
.home-cta-side-meta a:hover { text-decoration: underline; }

/* ===== 響應式 ===== */

@media (max-width: 768px) {
    .home-hero { padding: 56px 20px 32px; }
    .home-hero-title { font-size: 40px; }
    .home-hero-sub { font-size: 16px; }
    .home-section { padding: 56px 20px; }
    .home-section-title { font-size: 26px; }
    .home-blue { padding: 56px 20px; }
    .home-blue-title { font-size: 26px; }
    .home-cta-card {
        grid-template-columns: 1fr;
        padding: 28px 20px;
        gap: 24px;
    }
    .home-carousel-nav { width: 36px; height: 36px; }
    .home-carousel-nav-prev { left: 8px; }
    .home-carousel-nav-next { right: 8px; }
}