/* ===== 全局变量：午夜蓝 + 暖琥珀 高端汽车主题 ===== */
:root {
    /* 主色：午夜深海军蓝 —— 专业、沉稳、值得信赖 */
    --brand-dark: #0c1729;
    --brand-navy: #16294a;

    /* 强调色：暖琥珀橙 —— 活力、醒目但克制 */
    --accent: #ff7a18;
    --accent-dark: #e85d04;
    --accent-soft: rgba(255, 122, 24, .12);

    /* 价格色：暖朱红 —— 与强调色区分，突出价格信息 */
    --price: #e23b3b;

    /* 成功/信任色：松石绿 —— 车况承诺、品质保证 */
    --success: #1aa58a;
    --success-soft: #e8f7f3;

    /* 文字与中性色 */
    --ink: #1a2233;
    --ink-soft: #4a5568;
    --muted: #6b7689;
    --bg-gray: #f6f8fb;
    --card-bg: #ffffff;

    /* 边框：冷调微蓝，与午夜海军蓝呼应，比纯灰更有质感 */
    --border: #e2e8f1;
    --border-strong: #cdd8e6;

    /* 阴影体系：统一使用午夜蓝色调，层次分明、柔和不生硬 */
    --shadow-xs: 0 1px 2px rgba(12, 23, 41, .04);
    --shadow-sm: 0 2px 8px rgba(12, 23, 41, .05), 0 1px 3px rgba(12, 23, 41, .04);
    --shadow-md: 0 6px 20px rgba(12, 23, 41, .07), 0 2px 6px rgba(12, 23, 41, .04);
    --shadow-lg: 0 14px 36px rgba(12, 23, 41, .14), 0 4px 12px rgba(12, 23, 41, .06);
    --shadow-accent: 0 4px 14px rgba(255, 122, 24, .26);

    --radius: 12px;
}

body {
    color: var(--ink);
    background: #fff;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

a { text-decoration: none; }
.text-accent { color: var(--accent) !important; }

/* ===== 按钮 ===== */
.btn-accent {
    --bs-btn-color: #fff;
    --bs-btn-bg: var(--accent);
    --bs-btn-border-color: var(--accent);
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: var(--accent-dark);
    --bs-btn-hover-border-color: var(--accent-dark);
    --bs-btn-active-bg: var(--accent-dark);
    font-weight: 600;
    box-shadow: var(--shadow-accent);
}
.btn-accent:hover { box-shadow: 0 6px 20px rgba(232, 93, 4, .34); }
.btn-outline-accent {
    --bs-btn-color: var(--accent);
    --bs-btn-border-color: var(--accent);
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: var(--accent);
    --bs-btn-hover-border-color: var(--accent);
    font-weight: 600;
}
.bg-accent { background-color: var(--accent) !important; }

/* ===== 导航栏 ===== */
.main-navbar {
    background: #fff;
    box-shadow: 0 2px 12px rgba(12, 23, 41, .06);
    padding: .6rem 0;
}
.brand-text { line-height: 1.15; display: inline-flex; flex-direction: column; padding: 0; }
.brand-text strong { color: var(--brand-dark); font-size: 1.4rem; }
.brand-text small { color: var(--muted); font-size: .72rem; }
.main-navbar .nav-link {
    color: var(--ink-soft);
    font-weight: 500;
    padding: .5rem .9rem !important;
    transition: color .2s;
}
.main-navbar .nav-link:hover { color: var(--accent); }

/* ===== 首屏 Hero ===== */
.hero {
    position: relative;
    min-height: 480px;
    display: flex;
    align-items: center;
    color: #fff;
    overflow: hidden;
    background: var(--brand-dark);
}
.hero-bg {
    position: absolute; inset: 0;
    background-size: cover;
    background-position: center;
    transform: scale(1.02);
}
.hero-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(100deg, rgba(12,23,41,.94) 0%, rgba(12,23,41,.74) 48%, rgba(12,23,41,.38) 100%);
}
.hero-content { position: relative; padding-top: 60px; padding-bottom: 60px; }
.hero-title { font-size: 2.6rem; font-weight: 800; letter-spacing: 1px; }
.hero-subtitle { font-size: 1.05rem; margin-top: 14px; color: rgba(255,255,255,.86); }
.hero-shortcuts { margin-top: 18px; font-size: .9rem; }
.hero-shortcuts-top { margin-top: 34px; font-size: .95rem; }
.hero-shortcuts-top a {
    display: inline-block;
    border: 1px solid rgba(255,255,255,.32);
    border-radius: 50px;
    padding: 6px 18px;
    margin-bottom: 10px;
    transition: .2s;
    color: rgba(255,255,255,.78);
}
.hero-shortcuts-top a:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff !important;
}
.hero-shortcuts a { margin-right: 18px; color: rgba(255,255,255,.7); }
.hero-shortcuts a:hover { color: #fff !important; }

/* ===== 通用区块 ===== */
.section { padding-top: 56px; padding-bottom: 56px; }
.section-gray { background: var(--bg-gray); }
.section-head h2 {
    font-weight: 800; color: var(--brand-dark);
    position: relative; display: inline-block;
}

/* ===== 车辆卡片 ===== */
.vehicle-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    color: var(--ink);
    background: var(--card-bg);
    box-shadow: var(--shadow-sm);
    transition: transform .25s, box-shadow .25s, border-color .25s;
}
.vehicle-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-strong);
    color: var(--ink);
}
.card-img-wrap {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: #eef1f6;
}
.card-img-wrap img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform .35s;
}
.vehicle-card:hover .card-img-wrap img { transform: scale(1.06); }
.badge-power {
    position: absolute; top: 10px; left: 10px;
    font-weight: 500; padding: .35em .8em;
}
.badge-featured {
    position: absolute; top: 10px; right: 10px;
    background: rgba(255, 255, 255, 0.88);
    color: #ff9900;
    padding: .35em .8em;
    border-radius: 6px;
    font-size: .75rem;
    box-shadow: 0 2px 8px rgba(12, 23, 41, .28);
    backdrop-filter: blur(4px);
}
.vehicle-card .card-title {
    font-size: 1rem; font-weight: 700; color: var(--brand-dark);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.card-specs { display: flex; flex-wrap: wrap; gap: 4px 12px; }
.card-specs i { color: var(--muted); margin-right: 2px; }
.card-price {
    color: var(--price);
    font-size: 1.5rem; font-weight: 800;
    line-height: 1;
}
.card-price dfn {
    font-size: .8rem; font-style: normal;
    margin-right: 2px; font-weight: 700;
}
.card-price em { font-size: .8rem; font-style: normal; margin-left: 2px; font-weight: 600; }

/* ===== 页脚 ===== */
.site-footer {
    background: linear-gradient(180deg, #0e1c30 0%, #0a1628 100%);
    color: rgba(255,255,255,.82);
    padding: 48px 0 26px;
    margin-top: 0;
}
.footer-brand { font-weight: 800; color: #fff; }
.footer-desc { font-size: .85rem; margin-top: 12px; color: rgba(255,255,255,.6); }
.site-footer h6 { color: #fff; margin-bottom: 14px; font-weight: 700; }
.site-footer hr { border-color: rgba(255,255,255,.12); }
.footer-services .badge {
    background: rgba(255,255,255,.08) !important;
    color: rgba(255,255,255,.82) !important;
    border: 1px solid rgba(255,255,255,.14);
    font-weight: 500;
}
.site-footer .text-white-50 { color: rgba(255,255,255,.55) !important; }

/* ===== 悬浮按钮 ===== */
.back-top {
    position: fixed;
    right: 20px; bottom: 24px;
    width: 48px; height: 48px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.25rem;
    box-shadow: 0 8px 24px rgba(255, 122, 24, .4);
    z-index: 1030;
    background: var(--accent); color: #fff;
    border: none;
    opacity: 0; visibility: hidden;
    transition: .25s;
}
.back-top:hover { background: var(--accent-dark); }
.back-top.show { opacity: 1; visibility: visible; }

/* ===== 列表页 ===== */
.filter-panel {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    position: sticky;
    top: 90px;
    box-shadow: var(--shadow-sm);
}
.filter-title {
    font-weight: 700; color: var(--brand-dark);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--bg-gray);
}
.filter-title i { color: var(--accent); margin-right: 6px; }
.filter-panel .form-label { font-size: .85rem; font-weight: 600; color: var(--ink-soft); margin-bottom: 4px; }
.filter-panel .form-control,
.filter-panel .form-select {
    border-color: var(--border);
    color: var(--ink);
}
.filter-panel .form-control:focus,
.filter-panel .form-select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 .2rem var(--accent-soft);
}
.list-toolbar {
    display: flex; justify-content: space-between; align-items: center;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 18px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-xs);
}
.sort-select { width: 150px; border-color: var(--border) !important; }
.empty-state i { font-size: 3.4rem; color: var(--border-strong); }
.pagination .page-link {
    color: var(--brand-dark);
    border-color: var(--border);
}
.pagination .page-link:hover {
    color: var(--accent);
    background: var(--accent-soft);
    border-color: var(--accent);
}
.pagination .page-item.active .page-link {
    background-color: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

/* ===== 详情页 ===== */
.gallery {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px;
    margin-bottom: 20px;
    position: relative;
    box-shadow: var(--shadow-sm);
}
.gallery-main {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: 8px;
    background: #eef1f6;
}
.gallery-power { position: absolute; top: 22px; left: 22px; padding: .45em 1em; }
.gallery-thumbs {
    display: flex; gap: 10px;
    margin-top: 10px;
    overflow-x: auto;
    padding-bottom: 4px;
}
.gallery-thumbs .thumb {
    width: 110px; height: 72px;
    object-fit: cover;
    border-radius: 8px;
    cursor: pointer;
    border: 2px solid transparent;
    flex-shrink: 0;
    opacity: .72;
    transition: .2s;
}
.gallery-thumbs .thumb:hover { opacity: 1; }
.gallery-thumbs .thumb.active { border-color: var(--accent); opacity: 1; }

.info-block {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px 24px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-xs);
}
.info-block h4 {
    font-size: 1.1rem; font-weight: 800; color: var(--brand-dark);
    margin-bottom: 18px;
    padding-left: 10px;
    border-left: 4px solid var(--accent);
}
.info-block h4 i { color: var(--accent); margin-right: 6px; }
.spec-table { --bs-table-bg: transparent; }
.spec-table th {
    color: var(--muted); font-weight: 500;
    background: var(--bg-gray);
    width: 14%;
    white-space: nowrap;
    border-bottom-color: var(--border) !important;
}
.spec-table td { width: 36%; border-bottom-color: var(--border) !important; }

.tag-list { display: flex; flex-wrap: wrap; gap: 10px; }
.feature-tag {
    background: var(--bg-gray);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px 12px;
    font-size: .88rem;
    color: var(--ink-soft);
}
.feature-tag i { color: var(--success); }
.highlight-tag {
    background: var(--accent-soft);
    color: var(--accent-dark);
    border-radius: 6px;
    padding: 6px 14px;
    font-size: .88rem;
    font-weight: 600;
}
.highlight-tag i { color: var(--accent); }

.promise-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 20px; }
.promise-badge {
    background: var(--success-soft);
    color: var(--success);
    border: 1px solid #bfe8dd;
    border-radius: 50px;
    padding: 7px 16px;
    font-size: .9rem;
    font-weight: 600;
}
.promise-badge i { color: var(--success); }
.condition-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}
.condition-item {
    background: var(--bg-gray);
    border-radius: 8px;
    padding: 14px 16px;
    border: 1px solid var(--border);
}
.condition-item h6 { font-size: .85rem; color: var(--muted); margin-bottom: 6px; }
.condition-item p { margin: 0; font-size: .92rem; line-height: 1.6; color: var(--ink); }

.buy-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    position: sticky;
    top: 90px;
    box-shadow: var(--shadow-md);
}
.buy-card h5 { font-weight: 800; color: var(--brand-dark); line-height: 1.4; }
.buy-price {
    color: var(--price);
    font-size: 2.2rem; font-weight: 800;
    margin: 10px 0 6px;
}
.buy-price dfn { font-size: 1rem; font-style: normal; margin-right: 3px; }
.buy-price em { font-size: 1rem; font-style: normal; margin-left: 3px; }
.buy-specs { list-style: none; padding: 0; margin: 0; }
.buy-specs li {
    display: flex; justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px dashed var(--border);
    font-size: .92rem;
}
.buy-specs li:last-child { border-bottom: none; }
.buy-specs span { color: var(--muted); }
.buy-specs strong { color: var(--ink); }
.buy-services {
    display: flex; flex-wrap: wrap; gap: 6px 14px;
    font-size: .88rem;
    color: var(--ink-soft);
}
.buy-services i { color: var(--success); }

/* ===== 联系我们页 ===== */
.contact-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    padding: 32px 28px;
    height: 100%;
}
.contact-shop-name {
    font-weight: 800; color: var(--brand-dark);
    font-size: 1.35rem; line-height: 1.5;
}
.contact-list { list-style: none; padding: 0; margin: 24px 0 0; }
.contact-list li {
    display: flex; align-items: flex-start; gap: 14px;
    padding: 14px 0;
    border-bottom: 1px dashed var(--border);
}
.contact-list li:last-child { border-bottom: none; }
.contact-icon {
    flex-shrink: 0;
    width: 44px; height: 44px;
    border-radius: 50%;
    background: var(--accent-soft);
    color: var(--accent);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.15rem;
}
.contact-label { font-size: .82rem; color: var(--muted); margin-bottom: 2px; }
.contact-value { font-size: 1.05rem; font-weight: 600; color: var(--ink); }
a.contact-value:hover { color: var(--accent); }

.contact-photo {
    position: relative;
    height: 340px;
    border-radius: var(--radius);
    overflow: hidden;
    background-size: cover;
    background-position: center;
}
.contact-photo-mask {
    position: absolute; left: 0; right: 0; bottom: 0;
    padding: 26px 28px;
    background: linear-gradient(transparent, rgba(12, 23, 41, .88));
    color: #fff;
}
.contact-photo-mask h4 { font-weight: 800; margin-bottom: 4px; }
.contact-photo-mask span { color: rgba(255,255,255,.8); font-size: .9rem; }
.contact-services {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px 18px;
}
.contact-service-item {
    display: flex; align-items: center; gap: 8px;
    font-size: .95rem;
    color: var(--ink-soft);
}
.contact-service-item i { color: var(--success); }

/* ===== 手机端吸底咨询栏（详情页） ===== */
.mobile-buy-bar {
    position: fixed;
    left: 0; right: 0; bottom: 0;
    z-index: 1040;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
    background: #fff;
    box-shadow: 0 -4px 20px rgba(12, 23, 41, .12);
    border-top: 1px solid var(--border);
}
.mobile-buy-bar-spacer { height: 72px; }
.mbb-info { flex: 1; min-width: 0; }
.mbb-price { color: var(--price); font-size: 1.45rem; font-weight: 800; line-height: 1.15; }
.mbb-price dfn, .mbb-price em { font-size: .8rem; font-style: normal; font-weight: 700; }
.mbb-sub {
    font-size: .72rem; color: var(--muted);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.mbb-btn { flex-shrink: 0; padding: .55rem 1rem; font-size: .9rem; }

/* ===== 响应式：平板及以下 ===== */
@media (max-width: 991.98px) {
    .hero { min-height: 0; }
    .hero-content { padding-top: 52px; padding-bottom: 52px; }
    .hero-title { font-size: 1.9rem; }
    .section { padding-top: 44px; padding-bottom: 44px; }
    .filter-panel, .buy-card { position: static; }
    .filter-panel { margin-bottom: 6px; }
}

/* ===== 响应式：手机 ===== */
@media (max-width: 767.98px) {
    /* 内容页左右留白（导航栏、页脚不受影响） */
    .section > .container,
    .container.section { --bs-gutter-x: 2.25rem; }

    .section { padding-top: 40px; padding-bottom: 40px; }

    /* 导航栏 */
    .main-navbar { padding: .45rem 0; }
    .brand-text strong { font-size: .95rem; }
    .brand-text small { font-size: .66rem; }
    .main-navbar .navbar-collapse { margin-top: .4rem; }
    .main-navbar .nav-link {
        padding: .65rem .25rem !important;
        border-top: 1px solid var(--border);
    }

    /* 首页 Hero */
    .hero-content {
        --bs-gutter-x: 2.25rem;
        padding-top: 42px;
        padding-bottom: 46px;
    }
    .hero-title {
        font-size: 1.55rem; line-height: 1.45;
        letter-spacing: 0;
    }
    .hero-subtitle { font-size: .92rem; line-height: 1.75; margin-top: 12px; }
    .hero-shortcuts-top { margin-top: 22px; }
    .hero-shortcuts-top a { padding: 6px 14px; font-size: .82rem; margin: 0 8px 10px 0; }

    /* 区块标题 */
    .section-head h2 { font-size: 1.35rem; }
    .section-head p { font-size: .9rem; }
    .section-head.d-flex {
        flex-wrap: wrap; align-items: center !important;
        gap: 8px 12px; margin-bottom: 20px !important;
    }
    .section-head .btn { font-size: .82rem; padding: .35rem .85rem; }

    /* 车辆卡片：横向布局 */
    .vehicle-card { flex-direction: row; align-items: stretch; }
    .card-img-wrap { width: 38%; flex-shrink: 0; aspect-ratio: auto; min-height: 128px; }
    .badge-power { top: 8px; left: 8px; padding: .25em .6em; font-size: .7rem; }
    .badge-featured { top: 8px; right: 8px; padding: .25em .6em; font-size: .7rem; }
    .vehicle-card .card-body { padding: 12px 14px; min-width: 0; }
    .vehicle-card .card-title {
        font-size: 1rem; line-height: 1.4;
        white-space: normal;
        display: -webkit-box; -webkit-line-clamp: 2; line-clamp: 2; -webkit-box-orient: vertical;
    }
    .card-specs { font-size: .78rem; line-height: 1.5; gap: 4px 10px; }
    .card-specs i { display: none; }
    .card-price { font-size: 1.35rem; }
    .card-price dfn, .card-price em { font-size: .72rem; }
    .vehicle-card .card-body .mt-auto { padding-top: 10px !important; }
    .vehicle-card .text-decoration-line-through { font-size: .72rem; color: var(--muted) !important; }

    /* 列表页 */
    .col-lg-3 > .btn.w-100 {
        padding-top: .6rem; padding-bottom: .6rem;
        font-size: .95rem;
    }
    .filter-panel { padding: 18px 16px; }
    .filter-title { font-size: 1rem; margin-bottom: 14px; padding-bottom: 12px; }
    .filter-panel .form-label { font-size: .88rem; margin-bottom: 6px; }
    .filter-panel .form-control,
    .filter-panel .form-select,
    .filter-panel .btn { padding-top: .55rem; padding-bottom: .55rem; }
    .list-toolbar {
        flex-direction: column; align-items: stretch; gap: 10px;
        padding: 12px 16px; font-size: .92rem;
    }
    .list-toolbar .d-flex { justify-content: space-between; }
    .sort-select {
        width: auto; flex: 1; max-width: 180px;
        font-size: .92rem; padding: .45rem .7rem;
    }
    .pagination { flex-wrap: wrap; }
    .pagination .page-link { padding: .4rem .7rem; font-size: .85rem; }

    /* 详情页 */
    .gallery { padding: 10px; margin-bottom: 16px; }
    .gallery-power { top: 16px; left: 16px; font-size: .75rem; padding: .35em .75em; }
    .gallery-thumbs { gap: 8px; }
    .gallery-thumbs .thumb { width: 96px; height: 64px; border-radius: 6px; }
    .info-block { padding: 20px 16px; margin-bottom: 16px; }
    .info-block h4 { font-size: 1.08rem; margin-bottom: 14px; }
    .spec-table { font-size: .9rem; }
    .spec-table tr { display: flex; flex-wrap: wrap; }
    .spec-table th { flex: 0 0 42%; }
    .spec-table td { flex: 0 0 58%; }
    .spec-table th, .spec-table td {
        display: block; padding: .6rem .5rem;
    }
    .spec-table td { font-weight: 600; }
    .tag-list { gap: 8px; }
    .feature-tag, .highlight-tag { font-size: .82rem; padding: 5px 10px; }
    .promise-badge { font-size: .82rem; padding: 6px 12px; }
    .condition-grid { grid-template-columns: 1fr; gap: 10px; }
    .condition-item { padding: 12px 14px; }
    .condition-item h6 { font-size: .8rem; }
    .condition-item p { font-size: .9rem; line-height: 1.65; }
    .buy-card { padding: 20px 18px; }
    .buy-card h5 { font-size: 1.08rem; }
    .buy-price { font-size: 1.9rem; margin: 8px 0 4px; }
    .buy-specs li { font-size: .9rem; padding: 10px 0; }
    .buy-services { font-size: .82rem; gap: 8px 14px; }
    .related-title { font-size: 1.15rem; color: var(--brand-dark); font-weight: 800; }

    /* 手机吸底栏 */
    .mobile-buy-bar { padding-left: 16px; padding-right: 16px; }
    .mobile-buy-bar-spacer { height: 78px; }
    .mbb-price { font-size: 1.5rem; }
    .mbb-sub { font-size: .75rem; }
    .mbb-btn { padding: .6rem 1rem; font-size: .92rem; }

    /* 联系我们页 */
    .contact-card { padding: 22px 18px; }
    .contact-shop-name { font-size: 1.2rem; }
    .contact-card > p { font-size: .92rem; line-height: 1.7; }
    .contact-list { margin-top: 20px; }
    .contact-list li { padding: 13px 0; gap: 12px; }
    .contact-icon { width: 42px; height: 42px; font-size: 1.05rem; }
    .contact-label { font-size: .8rem; }
    .contact-value { font-size: 1rem; }
    .contact-photo { height: 220px; }
    .contact-photo-mask { padding: 18px; }
    .contact-photo-mask h4 { font-size: 1.05rem; }
    .contact-photo-mask span { font-size: .82rem; }
    .contact-services { gap: 10px 14px; }
    .contact-service-item { font-size: .88rem; }

    /* 页脚 */
    .site-footer { padding: 32px 0 20px; font-size: .85rem; }
    .footer-brand { font-size: 1rem; }
    .footer-desc { font-size: .8rem; margin-top: 10px; }

    /* 回到顶部 */
    .back-top { width: 40px; height: 40px; font-size: 1rem; right: 14px; bottom: 18px; }
}

/* ===== 超小屏 ===== */
@media (max-width: 359.98px) {
    .hero-title { font-size: 1.4rem; }
    .card-img-wrap { width: 34%; }
}