/* ============================================
   美特邦 产品列表页（list_pro.html）专属样式
   前缀 .mtb-pl-*，与其他页面样式完全隔离
   通用内页Banner / 面包屑样式在 common.css
   ============================================ */

.mtb-pg-prolist { color: var(--mtb-text); }

/* ---------- 实力信任条 ---------- */
.mtb-pl-trust {
    background: #fff;
    border-bottom: 1px solid var(--mtb-border);
    box-shadow: 0 4px 18px rgba(0,45,92,.05);
}
.mtb-pl-trust__list {
    display: flex; justify-content: space-between; align-items: center;
    gap: 10px; padding: 18px 0; list-style: none;
}
.mtb-pl-trust__list li {
    display: flex; align-items: center; gap: 12px;
    flex: 1 1 0; justify-content: center;
}
.mtb-pl-trust__list li + li { border-left: 1px solid var(--mtb-border); }
.mtb-pl-trust__list i {
    font-size: 26px; color: var(--mtb-primary);
    width: 48px; height: 48px; flex: 0 0 48px;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 50%; background: #eef4fb;
}
.mtb-pl-trust__list b { display: block; font-size: 15px; font-weight: 800; color: var(--mtb-primary-dark); white-space: nowrap; }
.mtb-pl-trust__list span { display: block; font-size: 12.5px; color: var(--mtb-gray); margin-top: 2px; white-space: nowrap; }

/* ---------- 两栏布局 ---------- */
.mtb-pl-layout {
    display: grid; grid-template-columns: 252px minmax(0, 1fr);
    gap: 30px; align-items: start;
}

/* ---------- 左侧分类 ---------- */
.mtb-pl-aside { position: sticky; top: 96px; display: flex; flex-direction: column; gap: 22px; }
.mtb-pl-cats {
    background: #fff; border: 1px solid var(--mtb-border); border-radius: 12px;
    padding: 12px;
}
.mtb-pl-cat {
    width: 100%; display: flex; align-items: center; justify-content: space-between;
    gap: 8px; padding: 14px 16px; cursor: pointer;
    border: none; background: transparent; border-radius: 8px;
    font-size: 14.5px; font-weight: 600; color: #46506a; text-align: left;
    transition: var(--mtb-transition);
}
.mtb-pl-cat + .mtb-pl-cat { margin-top: 4px; }
.mtb-pl-cat__name { display: inline-flex; align-items: center; gap: 10px; }
.mtb-pl-cat__name i {
    width: 20px; text-align: center; font-size: 14px; color: var(--mtb-accent);
    transition: var(--mtb-transition);
}
.mtb-pl-cat__num {
    font-style: normal; font-size: 12px; font-weight: 700; color: var(--mtb-gray);
    background: var(--mtb-bg); border-radius: 20px; padding: 2px 10px;
    transition: var(--mtb-transition);
}
.mtb-pl-cat:hover { color: var(--mtb-primary); background: #f2f7fd; padding-left: 20px; }
.mtb-pl-cat--active, .mtb-pl-cat--active:hover {
    color: #fff; padding-left: 16px;
    background: linear-gradient(135deg, var(--mtb-primary) 0%, var(--mtb-primary-2) 100%);
    box-shadow: 0 8px 20px rgba(0,58,120,.25);
}
.mtb-pl-cat--active .mtb-pl-cat__name i { color: var(--mtb-accent); }
.mtb-pl-cat--active .mtb-pl-cat__num { color: #fff; background: rgba(255,255,255,.18); }

/* 左侧选型咨询卡 */
.mtb-pl-aside__contact {
    position: relative; overflow: hidden;
    border-radius: 12px; padding: 28px 24px; text-align: center;
    background: linear-gradient(155deg, var(--mtb-primary-2) 0%, var(--mtb-primary-dark) 100%);
}
.mtb-pl-aside__contact::before {
    content: ''; position: absolute; left: -46px; bottom: -46px;
    width: 140px; height: 140px; border-radius: 50%;
    background: rgba(255,143,31,.13);
}
.mtb-pl-aside__contact h3 { position: relative; font-size: 18px; font-weight: 800; color: #fff; margin-bottom: 10px; }
.mtb-pl-aside__contact p { position: relative; font-size: 13px; line-height: 1.85; color: rgba(255,255,255,.78); margin-bottom: 18px; }
.mtb-pl-aside__tel {
    position: relative; display: block;
    font-size: 23px; font-weight: 900; letter-spacing: .5px; color: var(--mtb-accent);
    font-family: Arial, sans-serif; margin-bottom: 16px;
}
.mtb-pl-aside__tel i { font-size: 16px; margin-right: 4px; }
.mtb-pl-aside__btn { position: relative; width: 100%; justify-content: center; padding: 12px 20px; }

/* ---------- 工具条 ---------- */
.mtb-pl-bar {
    display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap;
    gap: 10px; margin-bottom: 28px;
}
.mtb-pl-bar__left { display: flex; align-items: baseline; gap: 14px; }
.mtb-pl-bar__title {
    position: relative; font-size: 24px; font-weight: 900; letter-spacing: 1px;
    color: var(--mtb-primary-dark); padding-left: 14px;
}
.mtb-pl-bar__title::before {
    content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
    width: 5px; height: 22px; border-radius: 3px;
    background: linear-gradient(180deg, var(--mtb-accent), var(--mtb-accent-2));
}
.mtb-pl-bar__count { font-size: 13.5px; color: var(--mtb-gray); }
.mtb-pl-bar__count b { color: var(--mtb-accent-2); font-size: 16px; font-family: Arial, sans-serif; }
.mtb-pl-bar__tip { font-size: 13px; color: var(--mtb-gray); }
.mtb-pl-bar__tip i { color: var(--mtb-primary); margin-right: 5px; }

/* ---------- 产品网格 ---------- */
.mtb-pl-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 26px; }
.mtb-pl-card {
    display: flex; flex-direction: column;
    background: #fff; border: 1px solid var(--mtb-border); border-radius: 12px;
    overflow: hidden; transition: var(--mtb-transition);
}
.mtb-pl-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--mtb-shadow-lg); border-color: transparent;
}
.mtb-pl-card__media { position: relative; overflow: hidden; aspect-ratio: 4 / 4; background: var(--mtb-bg); }
.mtb-pl-card__media img {
    width: 100%; height: 100%; object-fit: cover; display: block;
    transition: transform .55s ease;
}
.mtb-pl-card:hover .mtb-pl-card__media img { transform: scale(1.07); }
.mtb-pl-card__badge {
    position: absolute; left: 12px; top: 12px; z-index: 2;
    display: inline-flex; align-items: center; gap: 5px;
    padding: 5px 12px; border-radius: 4px;
    font-size: 12px; font-weight: 700; letter-spacing: 1px; color: #fff;
    background: linear-gradient(135deg, var(--mtb-accent), var(--mtb-accent-2));
    box-shadow: 0 4px 12px rgba(255,107,0,.3);
}
.mtb-pl-card__badge--new {
    background: linear-gradient(135deg, var(--mtb-primary), #0a5aa8);
    box-shadow: 0 4px 12px rgba(0,58,120,.3);
}
.mtb-pl-card__mask {
    position: absolute; inset: 0; z-index: 1;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(180deg, rgba(0,28,62,0) 40%, rgba(0,28,62,.55) 100%);
    opacity: 0; transition: opacity .35s ease;
}
.mtb-pl-card:hover .mtb-pl-card__mask { opacity: 1; }
.mtb-pl-card__maskbtn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 11px 24px; border-radius: 50px;
    font-size: 13.5px; font-weight: 700; letter-spacing: 1px; color: #fff;
    border: 1.5px solid rgba(255,255,255,.85);
    transform: translateY(12px); transition: transform .35s ease, background .35s ease;
}
.mtb-pl-card__maskbtn i { font-size: 12px; }
.mtb-pl-card:hover .mtb-pl-card__maskbtn {
    transform: translateY(0);
    background: linear-gradient(135deg, var(--mtb-accent), var(--mtb-accent-2));
    border-color: transparent;
}
.mtb-pl-card__body { padding: 22px 22px 20px; display: flex; flex-direction: column; flex: 1; }
.mtb-pl-card__name {
    font-size: 17px; font-weight: 800; color: var(--mtb-primary-dark);
    line-height: 1.5; margin-bottom: 10px;
    transition: var(--mtb-transition);
}
.mtb-pl-card:hover .mtb-pl-card__name { color: var(--mtb-primary); }
.mtb-pl-card__desc {
    font-size: 13.5px; color: #6a7689; line-height: 1.85;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.mtb-pl-card__spec {
    margin: 16px 0 18px; padding: 12px 0 0;
    list-style: none; display: flex; flex-wrap: wrap; gap: 8px;
    border-top: 1px dashed var(--mtb-border);
}
.mtb-pl-card__spec li {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 4px 10px; border-radius: 4px;
    font-size: 12.5px; color: #5a657a; background: var(--mtb-bg);
    white-space: nowrap;
}
.mtb-pl-card__spec i { color: var(--mtb-primary); font-size: 12px; }
.mtb-pl-card__more {
    margin-top: auto;
    display: inline-flex; align-items: center; gap: 7px;
    font-size: 13.5px; font-weight: 700; color: var(--mtb-accent);
    transition: var(--mtb-transition);
}
.mtb-pl-card__more i { transition: transform .3s ease; }
.mtb-pl-card:hover .mtb-pl-card__more { color: var(--mtb-accent-2); }
.mtb-pl-card:hover .mtb-pl-card__more i { transform: translateX(5px); }

/* 筛选隐藏 */
.mtb-pl-card--hidden { display: none; }

/* 空状态 */
.mtb-pl-empty {
    display: none; text-align: center;
    background: #fff; border: 1px dashed var(--mtb-border); border-radius: 12px;
    padding: 80px 20px; color: var(--mtb-gray);
}
.mtb-pl-empty i { font-size: 54px; color: #cfd8e4; display: block; margin-bottom: 16px; }
.mtb-pl-empty p { font-size: 15px; letter-spacing: 1px; margin-bottom: 22px; }
.mtb-pl-empty--show { display: block; }

/* ---------- CMS 分页（{$pages} 输出 ul.pagination） ---------- */
.mtb-pl-pager {
    display: none; justify-content: center; align-items: center;
    gap: 10px; margin-top: 56px; flex-wrap: wrap;
}
.mtb-pl-pager--show { display: flex; }
.mtb-pl-pager ul.pagination {
    display: flex; flex-wrap: wrap; align-items: center;
    gap: 10px; list-style: none; padding: 0; margin: 0;
}
.mtb-pl-pager ul.pagination li { display: inline-flex; }
.mtb-pl-pager ul.pagination li a {
    min-width: 46px; height: 46px; padding: 0 14px;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 6px; cursor: pointer;
    font-size: 15px; font-weight: 700; color: var(--mtb-text);
    background: #fff; border: 1px solid var(--mtb-border);
    transition: var(--mtb-transition);
}
.mtb-pl-pager ul.pagination li a:hover {
    color: var(--mtb-primary); border-color: var(--mtb-primary);
    transform: translateY(-2px);
}
.mtb-pl-pager ul.pagination li.active a {
    color: #fff; border-color: transparent;
    background: linear-gradient(135deg, var(--mtb-primary), var(--mtb-primary-2));
    box-shadow: 0 8px 20px rgba(0,58,120,.25);
}

/* ---------- 底部行动号召 ---------- */
.mtb-pl-cta { position: relative; overflow: hidden; }
.mtb-pl-cta__bg {
    position: absolute; inset: 0;
    background-repeat: no-repeat; background-position: center; background-size: cover;
}
.mtb-pl-cta__mask {
    position: absolute; inset: 0;
    background: linear-gradient(120deg, rgba(0,20,45,.95) 0%, rgba(0,44,95,.88) 55%, rgba(0,58,120,.72) 100%);
}
.mtb-pl-cta__inner {
    position: relative; z-index: 1;
    display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap;
    padding: 80px 24px;
}
.mtb-pl-cta__text { max-width: 720px; }
.mtb-pl-cta__label {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 16px; border-radius: 50px; margin-bottom: 18px;
    font-size: 13px; font-weight: 700; letter-spacing: 1px; color: var(--mtb-accent);
    background: rgba(255,143,31,.12); border: 1px solid rgba(255,143,31,.35);
}
.mtb-pl-cta__text h2 {
    font-size: 33px; font-weight: 900; color: #fff; letter-spacing: 1.5px; margin-bottom: 14px;
}
.mtb-pl-cta__text p { font-size: 15px; line-height: 1.9; color: rgba(255,255,255,.82); }
.mtb-pl-cta__btns { display: flex; flex-direction: column; gap: 14px; }
.mtb-pl-cta__btns .mtb-btn { min-width: 220px; justify-content: center; }
.mtb-pl-cta__btns .mtb-btn--ghost {
    color: #fff; border-color: rgba(255,255,255,.55); background: rgba(255,255,255,.06);
}
.mtb-pl-cta__btns .mtb-btn--ghost:hover { background: #fff; color: var(--mtb-primary); }

/* ---------- 入场动画 ---------- */
.mtb-pg-prolist.mtb-pl-ready .mtb-pl-card {
    opacity: 0; transform: translateY(28px);
    transition: opacity .6s ease, transform .6s ease;
}
.mtb-pg-prolist .mtb-pl--in { opacity: 1 !important; transform: none !important; }

/* ============================================
   响应式
   ============================================ */
@media (max-width: 1100px) {
    .mtb-pl-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
}
@media (max-width: 992px) {
    .mtb-pl-layout { grid-template-columns: 1fr; gap: 24px; }
    .mtb-pl-aside { position: static; }
    /* 分类栏在移动端变为横向滑动胶囊 */
    .mtb-pl-cats {
        display: flex; flex-wrap: nowrap; gap: 10px;
        padding: 10px 14px; overflow-x: auto;
        scrollbar-width: none; -webkit-overflow-scrolling: touch;
    }
    .mtb-pl-cats::-webkit-scrollbar { display: none; }
    .mtb-pl-cat {
        flex: 0 0 auto; width: auto; margin: 0 !important;
        padding: 9px 18px; border-radius: 50px;
        border: 1px solid var(--mtb-border); background: #fff;
    }
    .mtb-pl-cat:hover { padding-left: 18px; background: #f2f7fd; }
    .mtb-pl-cat--active, .mtb-pl-cat--active:hover { padding-left: 18px; }
    .mtb-pl-cat__num { display: none; }
    .mtb-pl-aside__contact { display: none; }
    .mtb-pl-trust__list { flex-wrap: wrap; row-gap: 14px; padding: 16px 0; }
    .mtb-pl-trust__list li { flex: 0 0 50%; justify-content: flex-start; padding: 0 12px; }
    .mtb-pl-trust__list li + li { border-left: none; }
    .mtb-pl-bar__title { font-size: 21px; }
    .mtb-pl-cta__inner { padding: 60px 24px; }
    .mtb-pl-cta__text h2 { font-size: 26px; }
    .mtb-pl-cta__btns { flex-direction: row; width: 100%; }
    .mtb-pl-cta__btns .mtb-btn { flex: 1; min-width: 0; }
}
@media (max-width: 640px) {
    .mtb-pl-trust__list li { flex: 0 0 100%; }
    .mtb-pl-trust__list i { width: 40px; height: 40px; flex-basis: 40px; font-size: 20px; }
    .mtb-pl-trust__list b { font-size: 14px; }
    .mtb-pl-bar { margin-bottom: 20px; }
    .mtb-pl-bar__title { font-size: 19px; }
    .mtb-pl-bar__tip { width: 100%; }
    .mtb-pl-grid { grid-template-columns: 1fr; gap: 18px; }
    .mtb-pl-card__body { padding: 18px 18px 16px; }
    .mtb-pl-card__name { font-size: 16px; }
    .mtb-pl-card__desc { -webkit-line-clamp: 2; }
    .mtb-pl-card__media { aspect-ratio: 16 / 10; }
    .mtb-pl-cta__inner { padding: 48px 20px; }
    .mtb-pl-cta__text h2 { font-size: 22px; letter-spacing: 1px; }
    .mtb-pl-cta__text p { font-size: 14px; }
    .mtb-pl-cta__btns { flex-direction: column; }
    .mtb-pl-cta__btns .mtb-btn { width: 100%; }
}

/* ============================================
   产品详情页（show_pro.html）专属样式
   前缀 .mtb-pd-*，与列表页 .mtb-pl-* 完全隔离
   ============================================ */

.mtb-pg-proshow { color: var(--mtb-text); }

/* ---------- 产品概览 ---------- */
.mtb-pd-overview { background: var(--mtb-bg); padding: 42px 0 10px; }
.mtb-pd-hero {
    display: grid; grid-template-columns: minmax(0, 540px) minmax(0, 1fr);
    gap: 44px; align-items: start;
    background: #fff; border: 1px solid var(--mtb-border); border-radius: 14px;
    padding: 34px; box-shadow: 0 10px 36px rgba(0,45,92,.06);
}

/* 图集 */
.mtb-pd-gallery { position: sticky; top: 14px; }
.mtb-pd-gallery__main {
    position: relative; aspect-ratio: 4 / 3; border-radius: 12px; overflow: hidden;
    background: var(--mtb-bg); cursor: zoom-in;
    border: 1px solid var(--mtb-border);
}
.mtb-pd-gallery__main img {
    width: 100%; height: 100%; object-fit: cover; display: block;
    transition: transform .5s ease;
}
.mtb-pd-gallery__main:hover img { transform: scale(1.04); }
.mtb-pd-gallery__zoom {
    position: absolute; right: 12px; bottom: 12px;
    display: inline-flex; align-items: center; gap: 6px;
    padding: 6px 14px; border-radius: 50px;
    font-size: 12.5px; color: #fff; background: rgba(0,20,45,.62);
    backdrop-filter: blur(3px);
}
.mtb-pd-gallery__badge {
    position: absolute; left: 14px; top: 14px; z-index: 2;
    display: inline-flex; align-items: center; gap: 5px;
    padding: 6px 14px; border-radius: 4px;
    font-size: 12.5px; font-weight: 700; letter-spacing: 1px; color: #fff;
}
.mtb-pd-gallery__badge--hot { background: linear-gradient(135deg, var(--mtb-accent), var(--mtb-accent-2)); }
.mtb-pd-gallery__badge--new { background: linear-gradient(135deg, var(--mtb-primary), #0a5aa8); }
.mtb-pd-gallery__thumbs { list-style: none; display: flex; gap: 12px; margin-top: 14px; }
.mtb-pd-thumb {
    width: 96px; aspect-ratio: 4 / 3; padding: 0; cursor: pointer;
    border: 2px solid var(--mtb-border); border-radius: 8px; overflow: hidden;
    background: #fff; transition: var(--mtb-transition);
}
.mtb-pd-thumb img { width: 100%; height: 100%; object-fit: cover; }
.mtb-pd-thumb:hover { border-color: #9fc0e6; }
.mtb-pd-thumb--on { border-color: var(--mtb-primary); box-shadow: 0 4px 12px rgba(0,58,120,.22); }

/* 右信息 */
.mtb-pd-info__tags { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.mtb-pd-info__cat {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 6px 16px; border-radius: 50px;
    font-size: 13px; font-weight: 700;
    color: var(--mtb-primary); background: #eaf2fb;
    transition: var(--mtb-transition);
}
.mtb-pd-info__cat:hover { background: var(--mtb-primary); color: #fff; }
.mtb-pd-info__flag {
    display: inline-flex; align-items: center; gap: 5px;
    padding: 6px 14px; border-radius: 50px;
    font-size: 12.5px; font-weight: 700; color: #fff;
}
.mtb-pd-info__flag--hot { background: linear-gradient(135deg, var(--mtb-accent), var(--mtb-accent-2)); }
.mtb-pd-info__flag--new { background: linear-gradient(135deg, var(--mtb-primary), #0a5aa8); }
.mtb-pd-info__name {
    font-size: 30px; font-weight: 900; color: var(--mtb-primary-dark);
    line-height: 1.4; margin: 16px 0 8px; letter-spacing: .5px;
}
.mtb-pd-info__model { font-size: 14px; color: var(--mtb-gray); }
.mtb-pd-info__model b { color: var(--mtb-primary); font-family: Arial, sans-serif; letter-spacing: .5px; }
.mtb-pd-info__summary {
    margin: 16px 0 18px; padding: 14px 18px;
    background: var(--mtb-bg); border-left: 3px solid var(--mtb-accent); border-radius: 0 8px 8px 0;
    font-size: 14px; line-height: 1.95; color: #56617a;
}
.mtb-pd-info__points {
    list-style: none; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 20px;
}
.mtb-pd-info__points li { display: flex; align-items: flex-start; gap: 8px; font-size: 14px; color: #46506a; line-height: 1.6; }
.mtb-pd-info__points i { color: var(--mtb-primary); font-size: 15px; margin-top: 3px; }
.mtb-pd-info__quick {
    display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px;
    margin: 22px 0;
}
.mtb-pd-qitem {
    display: flex; align-items: center; gap: 12px;
    padding: 13px 16px; border: 1px solid var(--mtb-border); border-radius: 10px;
    background: #fbfcfe;
}
.mtb-pd-qitem > i {
    width: 40px; height: 40px; flex: 0 0 40px;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 9px; font-size: 18px; color: var(--mtb-primary);
    background: #eaf2fb;
}
.mtb-pd-qitem span { display: block; font-size: 12.5px; color: var(--mtb-gray); margin-bottom: 2px; }
.mtb-pd-qitem b { display: block; font-size: 15px; font-weight: 800; color: var(--mtb-primary-dark); }
.mtb-pd-info__action { display: flex; gap: 14px; }
.mtb-pd-info__btn { flex: 1 1 0; justify-content: center; padding: 14px 20px; font-size: 15px; }
.mtb-pd-info__share {
    display: flex; align-items: center; gap: 12px; margin-top: 20px;
    font-size: 13.5px; color: var(--mtb-gray);
}
.mtb-pd-info__share > a {
    width: 36px; height: 36px; display: inline-flex; align-items: center; justify-content: center;
    border-radius: 50%; background: var(--mtb-bg); color: #6a7689; font-size: 15px;
    transition: var(--mtb-transition);
}
.mtb-pd-info__share > a:hover { background: var(--mtb-primary); color: #fff; transform: translateY(-2px); }

/* ---------- 锚点导航 ---------- */
.mtb-pd-tabbar {
    position: sticky; top: 0; z-index: 80;
    background: rgba(255,255,255,.96); backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--mtb-border);
    box-shadow: 0 4px 16px rgba(0,45,92,.05);
}
.mtb-pd-tabs { display: flex; }
.mtb-pd-tab {
    position: relative; display: inline-flex; align-items: center; gap: 8px;
    padding: 17px 26px;
    font-size: 15px; font-weight: 700; color: #56617a; white-space: nowrap;
    transition: var(--mtb-transition);
}
.mtb-pd-tab i { font-size: 14px; color: var(--mtb-gray); transition: var(--mtb-transition); }
.mtb-pd-tab::after {
    content: ''; position: absolute; left: 26px; right: 26px; bottom: -1px; height: 3px;
    border-radius: 3px 3px 0 0; background: var(--mtb-accent);
    transform: scaleX(0); transition: transform .3s ease;
}
.mtb-pd-tab:hover { color: var(--mtb-primary); }
.mtb-pd-tab--on { color: var(--mtb-primary); }
.mtb-pd-tab--on i { color: var(--mtb-accent); }
.mtb-pd-tab--on::after { transform: scaleX(1); }

/* ---------- 正文两栏 ---------- */
.mtb-pd-detail { padding: 46px 0 80px; }
.mtb-pd-layout {
    display: grid; grid-template-columns: minmax(0, 1fr) 288px;
    gap: 28px; align-items: start;
}
.mtb-pd-body {
    background: #fff; border: 1px solid var(--mtb-border); border-radius: 14px;
    padding: 10px 42px 38px;
}
.mtb-pd-sec { padding-top: 34px; scroll-margin-top: 72px; }
.mtb-pd-sec__title {
    display: flex; align-items: center; gap: 14px;
    font-size: 23px; font-weight: 900; color: var(--mtb-primary-dark);
    padding-bottom: 16px; border-bottom: 1px solid var(--mtb-border);
}
.mtb-pd-sec__no {
    font-size: 27px; font-weight: 900; font-style: italic; line-height: 1;
    background: linear-gradient(135deg, var(--mtb-accent), var(--mtb-accent-2));
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.mtb-pd-sec__content { padding-top: 20px; }
.mtb-pd-sec__content > p { font-size: 15px; line-height: 2; color: #4c566c; margin: 0 0 16px; }
/* 正文图片居中显示 */
.mtb-pd-sec__content img {
    display: block; max-width: 100%; height: auto;
    margin: 20px auto;
    border-radius: 10px; border: 1px solid var(--mtb-border);
    box-shadow: 0 8px 24px rgba(0,45,92,.07);
}
.mtb-pd-sec__content figure { margin: 24px 0 8px; text-align: center; }
.mtb-pd-list { list-style: none; margin: 14px 0 18px; }
.mtb-pd-list li {
    position: relative; padding-left: 28px; margin-bottom: 11px;
    font-size: 14.5px; line-height: 1.85; color: #4c566c;
}
.mtb-pd-list li::before {
    content: '\f00c'; font-family: "Font Awesome 6 Free"; font-weight: 900;
    position: absolute; left: 0; top: 3px;
    width: 19px; height: 19px; border-radius: 50%;
    font-size: 10px; color: #fff; background: var(--mtb-accent);
    display: inline-flex; align-items: center; justify-content: center;
}
.mtb-pd-fig { margin: 24px 0 8px; text-align: center; }
.mtb-pd-fig img {
    max-width: 100%; border-radius: 10px; border: 1px solid var(--mtb-border);
    box-shadow: 0 8px 24px rgba(0,45,92,.07);
}
.mtb-pd-fig figcaption { font-size: 13px; color: var(--mtb-gray); margin-top: 10px; }

/* 产品视频（HTML5 播放器） */
.mtb-pd-video {
    display: block; width: 100%; aspect-ratio: 16 / 9;
    background: #000; border-radius: 10px; object-fit: contain;
    box-shadow: 0 10px 30px rgba(0,45,92,.16);
}
.mtb-pd-video__fallback { font-size: 13.5px; color: var(--mtb-gray); margin-top: 12px; text-align: center; }
.mtb-pd-video__fallback a { color: var(--mtb-primary); font-weight: 700; }

/* 参数表 */
.mtb-pd-table__tip {
    display: flex; align-items: flex-start; gap: 8px;
    background: #eef4fb; border-radius: 8px; padding: 12px 16px;
    font-size: 13px !important; line-height: 1.8 !important; color: var(--mtb-primary) !important;
    margin-bottom: 18px !important;
}
.mtb-pd-table__tip i { margin-top: 4px; }
.mtb-pd-table { width: 100%; border-collapse: collapse; border: 1px solid var(--mtb-border); border-radius: 10px; overflow: hidden; }
.mtb-pd-table th, .mtb-pd-table td {
    padding: 14px 18px; font-size: 14px; text-align: left;
    border: 1px solid var(--mtb-border);
}
.mtb-pd-table th {
    width: 14%; background: #f2f7fd; color: var(--mtb-primary-dark);
    font-weight: 700; white-space: nowrap;
}
.mtb-pd-table td { width: 36%; color: #4c566c; font-weight: 500; }
.mtb-pd-table tbody tr:nth-child(even) td { background: #fafbfd; }

/* 性能特点 */
.mtb-pd-features { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.mtb-pd-feature {
    display: flex; flex-direction: column;
    border: 1px solid var(--mtb-border); border-radius: 12px; padding: 24px 22px;
    background: #fff; transition: var(--mtb-transition);
}
.mtb-pd-feature:hover {
    transform: translateY(-5px); box-shadow: var(--mtb-shadow-lg); border-color: transparent;
}
.mtb-pd-feature__icon {
    width: 54px; height: 54px; border-radius: 12px;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 23px; color: #fff; margin-bottom: 15px;
    background: linear-gradient(135deg, var(--mtb-primary), #0a5aa8);
    box-shadow: 0 8px 18px rgba(0,58,120,.25);
    transition: var(--mtb-transition);
}
.mtb-pd-feature:hover .mtb-pd-feature__icon {
    background: linear-gradient(135deg, var(--mtb-accent), var(--mtb-accent-2));
    box-shadow: 0 8px 18px rgba(255,107,0,.3);
}
.mtb-pd-feature h3 { font-size: 16.5px; font-weight: 800; color: var(--mtb-primary-dark); margin-bottom: 8px; }
.mtb-pd-feature p { font-size: 13.5px; line-height: 1.9; color: #6a7689; margin: 0; }

/* 工艺流程 */
.mtb-pd-flow { list-style: none; }
.mtb-pd-flow__step { position: relative; display: flex; gap: 18px; padding-bottom: 26px; }
.mtb-pd-flow__step:not(:last-child)::before {
    content: ''; position: absolute; left: 26px; top: 54px; bottom: 2px;
    border-left: 2px dashed #c5d3e6;
}
.mtb-pd-flow__icon {
    position: relative; z-index: 1; flex: 0 0 54px; width: 54px; height: 54px;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 50%; font-size: 20px; color: var(--mtb-primary);
    background: #eaf2fb; border: 2px solid #cfe1f5;
}
.mtb-pd-flow__step h3 { font-size: 15.5px; font-weight: 800; color: var(--mtb-primary-dark); margin: 4px 0 6px; }
.mtb-pd-flow__step p { font-size: 13.5px; line-height: 1.85; color: #6a7689; margin: 0; }

/* 适用范围 */
.mtb-pd-scope__row { margin-bottom: 22px; }
.mtb-pd-scope__row h3 {
    display: flex; align-items: center; gap: 9px;
    font-size: 15.5px; font-weight: 800; color: var(--mtb-primary-dark); margin-bottom: 13px;
}
.mtb-pd-scope__row h3 i { color: var(--mtb-accent); }
.mtb-pd-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.mtb-pd-tag {
    padding: 7px 18px; border-radius: 50px;
    font-size: 13.5px; font-weight: 600; color: var(--mtb-primary);
    background: #fff; border: 1px solid #b9d2ee;
    transition: var(--mtb-transition);
}
.mtb-pd-tag:hover { background: #eaf2fb; transform: translateY(-2px); }
.mtb-pd-tag--solid { color: #fff; border-color: transparent; background: linear-gradient(135deg, var(--mtb-primary), #0a5aa8); }
.mtb-pd-tag--solid:hover { background: linear-gradient(135deg, var(--mtb-accent), var(--mtb-accent-2)); }

/* 上一款 / 下一款 */
.mtb-pd-pn {
    display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px;
    margin-top: 36px; padding-top: 28px; border-top: 1px solid var(--mtb-border);
}
.mtb-pd-pn__card {
    display: flex; flex-direction: column; gap: 6px;
    border: 1px solid var(--mtb-border); border-radius: 10px; padding: 18px 22px;
    transition: var(--mtb-transition);
}
.mtb-pd-pn__card:last-child { text-align: right; }
.mtb-pd-pn__card:hover { border-color: var(--mtb-primary); background: #f7faff; }
.mtb-pd-pn__dir { font-size: 12.5px; color: var(--mtb-gray); letter-spacing: 1px; }
.mtb-pd-pn__dir i { color: var(--mtb-accent); }
.mtb-pd-pn__card b {
    font-size: 14.5px; font-weight: 700; color: var(--mtb-primary-dark);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.mtb-pd-pn__card--disabled { pointer-events: none; opacity: .55; }

/* 侧栏 */
.mtb-pd-aside { position: sticky; top: 74px; }
.mtb-pd-ask {
    position: relative; overflow: hidden;
    border-radius: 12px; padding: 28px 24px; text-align: center;
    background: linear-gradient(155deg, var(--mtb-primary-2) 0%, var(--mtb-primary-dark) 100%);
}
.mtb-pd-ask::before {
    content: ''; position: absolute; right: -42px; top: -42px;
    width: 130px; height: 130px; border-radius: 50%;
    background: rgba(255,143,31,.14);
}
.mtb-pd-ask h3 { position: relative; font-size: 18px; font-weight: 800; color: #fff; margin-bottom: 10px; }
.mtb-pd-ask p { position: relative; font-size: 13px; line-height: 1.85; color: rgba(255,255,255,.78); margin-bottom: 18px; }
.mtb-pd-ask__tel {
    position: relative; display: block;
    font-size: 22px; font-weight: 900; color: var(--mtb-accent);
    font-family: Arial, sans-serif; margin-bottom: 16px;
}
.mtb-pd-ask__tel i { font-size: 15px; margin-right: 4px; }
.mtb-pd-ask__btn { position: relative; width: 100%; justify-content: center; padding: 12px 20px; }

.mtb-pd-sidecard {
    background: #fff; border: 1px solid var(--mtb-border); border-radius: 12px;
    padding: 20px 22px; margin-top: 18px;
}
.mtb-pd-sidecard__title {
    display: flex; align-items: center; gap: 9px;
    font-size: 15.5px; font-weight: 800; color: var(--mtb-primary-dark);
    padding-bottom: 13px; margin-bottom: 6px; border-bottom: 1px solid var(--mtb-border);
}
.mtb-pd-sidecard__title i { color: var(--mtb-accent); }
.mtb-pd-sideparam { list-style: none; }
.mtb-pd-sideparam li {
    display: flex; justify-content: space-between; gap: 10px;
    padding: 11px 0; border-bottom: 1px dashed var(--mtb-border);
    font-size: 13.5px;
}
.mtb-pd-sideparam li:last-child { border-bottom: none; padding-bottom: 2px; }
.mtb-pd-sideparam span { color: var(--mtb-gray); }
.mtb-pd-sideparam b { color: var(--mtb-primary-dark); font-weight: 700; text-align: right; }
.mtb-pd-sidecats { display: flex; flex-direction: column; gap: 4px; }
.mtb-pd-sidecat {
    display: flex; align-items: center; justify-content: space-between;
    padding: 10px 12px; border-radius: 8px;
    font-size: 14px; font-weight: 600; color: #46506a;
    transition: var(--mtb-transition);
}
.mtb-pd-sidecat__name { display: inline-flex; align-items: center; gap: 9px; }
.mtb-pd-sidecat__name i { width: 16px; text-align: center; font-size: 13px; color: var(--mtb-accent); }
.mtb-pd-sidecat__num {
    font-style: normal; font-size: 12px; color: var(--mtb-gray);
    background: var(--mtb-bg); border-radius: 20px; padding: 1px 9px;
}
.mtb-pd-sidecat:hover { background: #f2f7fd; color: var(--mtb-primary); }
.mtb-pd-sidecat--on, .mtb-pd-sidecat--on:hover {
    color: #fff; background: linear-gradient(135deg, var(--mtb-primary), var(--mtb-primary-2));
}
.mtb-pd-sidecat--on .mtb-pd-sidecat__name i { color: var(--mtb-accent); }
.mtb-pd-sidecat--on .mtb-pd-sidecat__num { color: #fff; background: rgba(255,255,255,.18); }
.mtb-pd-promise { list-style: none; }
.mtb-pd-promise li {
    display: flex; align-items: center; gap: 10px;
    padding: 9px 0; font-size: 13.5px; color: #46506a;
}
.mtb-pd-promise i { width: 28px; height: 28px; flex: 0 0 28px; display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; background: #eaf2fb; color: var(--mtb-primary); font-size: 12px; }

/* ---------- 相关产品 ---------- */
.mtb-pd-related { background: #fff; padding: 78px 0; }
.mtb-pd-related__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 32px; }
.mtb-pd-related__title {
    position: relative; font-size: 26px; font-weight: 900; color: var(--mtb-primary-dark);
    padding-left: 15px;
}
.mtb-pd-related__title::before {
    content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
    width: 5px; height: 24px; border-radius: 3px;
    background: linear-gradient(180deg, var(--mtb-accent), var(--mtb-accent-2));
}
.mtb-pd-related__more { font-size: 14px; font-weight: 700; color: var(--mtb-accent); transition: var(--mtb-transition); }
.mtb-pd-related__more i { transition: transform .3s; }
.mtb-pd-related__more:hover { color: var(--mtb-accent-2); }
.mtb-pd-related__more:hover i { transform: translateX(4px); }
.mtb-pd-related__grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 22px; }
.mtb-pd-relcard {
    display: flex; flex-direction: column;
    border: 1px solid var(--mtb-border); border-radius: 12px; overflow: hidden;
    background: #fff; transition: var(--mtb-transition);
}
.mtb-pd-relcard:hover { transform: translateY(-7px); box-shadow: var(--mtb-shadow-lg); border-color: transparent; }
.mtb-pd-relcard__media { aspect-ratio: 4 / 3; overflow: hidden; background: var(--mtb-bg); }
.mtb-pd-relcard__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.mtb-pd-relcard:hover .mtb-pd-relcard__media img { transform: scale(1.07); }
.mtb-pd-relcard__body { padding: 18px 18px 16px; display: flex; flex-direction: column; flex: 1; }
.mtb-pd-relcard__body h3 {
    font-size: 15.5px; font-weight: 800; color: var(--mtb-primary-dark);
    line-height: 1.5; margin-bottom: 8px;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    transition: var(--mtb-transition);
}
.mtb-pd-relcard:hover .mtb-pd-relcard__body h3 { color: var(--mtb-primary); }
.mtb-pd-relcard__body p {
    font-size: 12.5px; color: #8a94a6; line-height: 1.7; margin-bottom: 12px;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.mtb-pd-relcard__more {
    margin-top: auto; font-size: 13px; font-weight: 700; color: var(--mtb-accent);
    display: inline-flex; align-items: center; gap: 6px;
}
.mtb-pd-relcard__more i { transition: transform .3s; }
.mtb-pd-relcard:hover .mtb-pd-relcard__more i { transform: translateX(4px); }

/* ---------- 底部行动号召（深蓝渐变，区别于列表页图片底CTA） ---------- */
.mtb-pd-cta {
    position: relative; overflow: hidden;
    background: linear-gradient(120deg, var(--mtb-primary-dark) 0%, var(--mtb-primary-2) 55%, var(--mtb-primary) 100%);
}
.mtb-pd-cta::before {
    content: ''; position: absolute; right: -120px; bottom: -160px;
    width: 460px; height: 460px; border-radius: 50%;
    background: radial-gradient(circle, rgba(255,143,31,.22) 0%, rgba(255,143,31,0) 70%);
}
.mtb-pd-cta__inner {
    position: relative; z-index: 1;
    display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap;
    padding: 72px 24px;
}
.mtb-pd-cta__text { max-width: 720px; }
.mtb-pd-cta__label {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 16px; border-radius: 50px; margin-bottom: 18px;
    font-size: 13px; font-weight: 700; color: var(--mtb-accent);
    background: rgba(255,143,31,.12); border: 1px solid rgba(255,143,31,.35);
}
.mtb-pd-cta__text h2 { font-size: 32px; font-weight: 900; color: #fff; letter-spacing: 1px; margin-bottom: 14px; }
.mtb-pd-cta__text p { font-size: 15px; line-height: 1.9; color: rgba(255,255,255,.82); }
.mtb-pd-cta__btns { display: flex; flex-direction: column; gap: 14px; }
.mtb-pd-cta__btns .mtb-btn { min-width: 224px; justify-content: center; }
.mtb-pd-cta__btns .mtb-btn--ghost { color: #fff; border-color: rgba(255,255,255,.55); background: rgba(255,255,255,.06); }
.mtb-pd-cta__btns .mtb-btn--ghost:hover { background: #fff; color: var(--mtb-primary); }

/* ---------- 图片放大层 ---------- */
.mtb-pd-lightbox {
    position: fixed; inset: 0; z-index: 3000;
    display: none; align-items: center; justify-content: center;
    background: rgba(0,12,28,.9); padding: 40px;
    opacity: 0; transition: opacity .3s ease;
}
.mtb-pd-lightbox--show { display: flex; opacity: 1; }
.mtb-pd-lightbox img { max-width: 92vw; max-height: 84vh; border-radius: 10px; box-shadow: 0 20px 60px rgba(0,0,0,.5); }
.mtb-pd-lightbox__close {
    position: absolute; top: 24px; right: 28px;
    width: 48px; height: 48px; border-radius: 50%;
    border: 1px solid rgba(255,255,255,.4); background: rgba(255,255,255,.08);
    color: #fff; font-size: 20px; cursor: pointer; transition: var(--mtb-transition);
}
.mtb-pd-lightbox__close:hover { background: var(--mtb-accent); border-color: transparent; transform: rotate(90deg); }

/* ---------- 轻量提示条 ---------- */
.mtb-pd-toast {
    position: fixed; left: 50%; bottom: 92px; z-index: 3200;
    transform: translate(-50%, 16px);
    background: rgba(0,20,45,.92); color: #fff;
    font-size: 14px; letter-spacing: .5px;
    padding: 12px 26px; border-radius: 50px;
    box-shadow: 0 10px 30px rgba(0,20,45,.3);
    opacity: 0; pointer-events: none; transition: all .32s ease;
}
.mtb-pd-toast--show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- 入场动画 ---------- */
.mtb-pg-proshow.mtb-pd-ready .mtb-pd-hero,
.mtb-pg-proshow.mtb-pd-ready .mtb-pd-body,
.mtb-pg-proshow.mtb-pd-ready .mtb-pd-ask,
.mtb-pg-proshow.mtb-pd-ready .mtb-pd-sidecard,
.mtb-pg-proshow.mtb-pd-ready .mtb-pd-relcard {
    opacity: 0; transform: translateY(26px);
    transition: opacity .6s ease, transform .6s ease;
}
.mtb-pg-proshow .mtb-pd--in { opacity: 1 !important; transform: none !important; }

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
    .mtb-pd-hero { grid-template-columns: minmax(0, 440px) minmax(0, 1fr); gap: 30px; padding: 26px; }
    .mtb-pd-related__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 992px) {
    .mtb-pd-hero { grid-template-columns: 1fr; }
    .mtb-pd-gallery { position: static; max-width: 560px; }
    .mtb-pd-tabs { overflow-x: auto; scrollbar-width: none; }
    .mtb-pd-tabs::-webkit-scrollbar { display: none; }
    .mtb-pd-tab { padding: 15px 20px; }
    .mtb-pd-tab::after { left: 20px; right: 20px; }
    .mtb-pd-layout { grid-template-columns: 1fr; }
    .mtb-pd-aside { position: static; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
    .mtb-pd-ask { grid-column: 1 / -1; }
    .mtb-pd-sidecard { margin-top: 0; }
    .mtb-pd-body { padding: 10px 26px 32px; }
}
@media (max-width: 640px) {
    .mtb-pd-overview { padding: 24px 0 6px; }
    .mtb-pd-hero { padding: 18px; border-radius: 12px; }
    .mtb-pd-thumb { width: 64px; }
    .mtb-pd-info__name { font-size: 21px; margin-top: 13px; }
    .mtb-pd-info__points { grid-template-columns: 1fr; }
    .mtb-pd-info__quick { grid-template-columns: 1fr 1fr; gap: 10px; }
    .mtb-pd-qitem { padding: 10px 12px; gap: 9px; }
    .mtb-pd-qitem > i { width: 34px; height: 34px; flex-basis: 34px; font-size: 15px; }
    .mtb-pd-qitem b { font-size: 13.5px; }
    .mtb-pd-info__action { flex-direction: column; gap: 10px; }
    .mtb-pd-detail { padding: 30px 0 56px; }
    .mtb-pd-body { padding: 8px 16px 26px; }
    .mtb-pd-sec { padding-top: 26px; scroll-margin-top: 64px; }
    .mtb-pd-sec__title { font-size: 19px; gap: 10px; }
    .mtb-pd-sec__no { font-size: 22px; }
    .mtb-pd-sec__content > p { font-size: 14px; }
    .mtb-pd-features { grid-template-columns: 1fr; gap: 14px; }
    /* 参数表在窄屏转为卡片式 */
    .mtb-pd-table, .mtb-pd-table tbody, .mtb-pd-table tr, .mtb-pd-table th, .mtb-pd-table td {
        display: block; width: 100%; box-sizing: border-box;
    }
    .mtb-pd-table tr { border: 1px solid var(--mtb-border); border-radius: 8px; margin-bottom: 10px; overflow: hidden; }
    .mtb-pd-table th, .mtb-pd-table td { border: none; padding: 8px 14px; width: 100%; }
    .mtb-pd-table tbody tr:nth-child(even) td { background: none; }
    .mtb-pd-table th { border-bottom: 1px dashed var(--mtb-border); }
    .mtb-pd-pn { grid-template-columns: 1fr; }
    .mtb-pd-pn__card:last-child { text-align: left; }
    .mtb-pd-aside { grid-template-columns: 1fr; }
    .mtb-pd-related { padding: 54px 0; }
    .mtb-pd-related__head { margin-bottom: 22px; }
    .mtb-pd-related__title { font-size: 21px; }
    .mtb-pd-related__grid { grid-template-columns: 1fr; }
    .mtb-pd-cta__inner { padding: 48px 20px; }
    .mtb-pd-cta__text h2 { font-size: 23px; }
    .mtb-pd-cta__text p { font-size: 14px; }
    .mtb-pd-cta__btns { width: 100%; }
    .mtb-pd-cta__btns .mtb-btn { width: 100%; min-width: 0; }
}