/* ============================================================
   Good Tek 官网 · 雅白工业风 设计系统
   契约见 company-site/DESIGN.md —— 改令牌先改契约。
   白纸上的工业规格书：大留白 · 1px 细线 · 唯一品牌蓝 · 产品为主角。
   ============================================================ */

@font-face {
    font-family: "Archivo";
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: url("/fonts/archivo-500.woff2") format("woff2");
}
@font-face {
    font-family: "Archivo";
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url("/fonts/archivo-600.woff2") format("woff2");
}

:root {
    --acc: #1558b0;        /* 唯一强调色 */
    --acc-ink: #0d3f80;    /* 强调悬停深 */
    --ink: #1a2430;        /* 标题/正文主色 */
    --ink-2: #3d4a58;      /* 次级正文 */
    --mut: #74828f;        /* 弱说明 */
    --line: #e6eaee;       /* 1px 细分割线 */
    --line-2: #f0f3f6;     /* 更浅分隔 */
    --bg: #fafbfc;         /* 浅灰区块底 */
    --w: 1200px;
    --lat: "Archivo", "PingFang SC", "Microsoft YaHei", sans-serif;
    --shadow: 0 6px 24px rgba(20, 40, 70, .07);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
    color: var(--ink);
    background: #fff;
    line-height: 1.75;
    font-size: 16px;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
::selection { background: var(--acc); color: #fff; }

:focus-visible { outline: 2px solid var(--acc); outline-offset: 2px; }

.lat { font-family: var(--lat); }

.wrap { max-width: var(--w); margin: 0 auto; padding: 0 24px; }
.wrap.narrow { max-width: 820px; }

/* ============ 头部 ============ */
.site-head {
    position: sticky; top: 0; z-index: 100;
    background: #fff; border-bottom: 1px solid var(--line);
}
.head-in { display: flex; align-items: center; gap: 36px; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; white-space: nowrap; }
.brand-mark { width: 10px; height: 10px; background: var(--acc); flex: 0 0 auto; }
.brand-name { font-size: 17px; font-weight: 600; color: var(--ink); }
.brand-lat {
    font-family: var(--lat); font-size: 11px; font-weight: 600;
    letter-spacing: .14em; color: var(--mut);
    padding-left: 10px; border-left: 1px solid var(--line);
}
.main-nav { display: flex; gap: 28px; flex: 1; }
.main-nav a {
    position: relative; padding: 6px 0; font-size: 15px; color: var(--ink-2);
    transition: color .15s;
}
.main-nav a::after {
    content: ""; position: absolute; left: 0; right: 100%; bottom: 0;
    height: 2px; background: var(--acc); transition: right .2s;
}
.main-nav a:hover { color: var(--acc); }
.main-nav a.active { color: var(--ink); font-weight: 600; }
.main-nav a.active::after, .main-nav a:hover::after { right: 0; }
.head-phone { text-align: right; line-height: 1.3; white-space: nowrap; }
.head-phone small { display: block; font-size: 11px; color: var(--mut); letter-spacing: .08em; }
.head-phone b { font-family: var(--lat); font-size: 16px; font-weight: 600; color: var(--ink); }

/* ============ 首页 hero（白底分栏） ============ */
.hero { padding: 84px 0 96px; }
.hero-in { display: grid; grid-template-columns: 1.05fr .95fr; gap: 64px; align-items: center; }
.hero-copy .eyebrow { margin-bottom: 22px; }
.hero-copy h1 {
    font-size: 40px; line-height: 1.3; font-weight: 600;
    letter-spacing: .01em; margin-bottom: 20px; max-width: 14em;
}
.hero-sub { font-size: 16px; color: var(--ink-2); max-width: 30em; margin-bottom: 36px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }

/* 眉题：拉丁小字 + 加宽字距，全站区块头的统一记号 */
.eyebrow {
    font-family: var(--lat); font-size: 12px; font-weight: 600;
    letter-spacing: .16em; color: var(--acc); text-transform: uppercase;
}

/* 按钮：方正、细线、单一强调 */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 11px 26px; border-radius: 2px; font-size: 14px;
    background: var(--acc); color: #fff; border: 1px solid var(--acc);
    transition: background .15s, border-color .15s, color .15s;
}
.btn:hover { background: var(--acc-ink); border-color: var(--acc-ink); }
.btn-line {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 11px 26px; border-radius: 2px; font-size: 14px;
    background: #fff; color: var(--ink); border: 1px solid var(--line);
    transition: border-color .15s, color .15s;
}
.btn-line:hover { border-color: var(--acc); color: var(--acc); }

/* 媒体框：1px 边 + 制图角标 */
.hero-frame {
    position: relative; border: 1px solid var(--line); border-radius: 2px;
    background: #fff; aspect-ratio: 4 / 3.2; overflow: hidden;
}
.hero-frame .tick { position: absolute; width: 14px; height: 14px; z-index: 3; }
.hero-frame .tick.tl { top: -1px; left: -1px; border-top: 2px solid var(--acc); border-left: 2px solid var(--acc); }
.hero-frame .tick.br { bottom: -1px; right: -1px; border-bottom: 2px solid var(--acc); border-right: 2px solid var(--acc); }
.slides, .slides .slide { width: 100%; height: 100%; }
.slide { position: absolute; inset: 0; opacity: 0; transition: opacity .7s ease; }
.slide.on { opacity: 1; }
.slide img { width: 100%; height: 100%; object-fit: cover; }
.slide-cap {
    position: absolute; left: 14px; bottom: 14px; z-index: 2;
    background: rgba(255, 255, 255, .94); color: var(--ink-2);
    font-size: 12px; line-height: 1.6; padding: 4px 12px; border-radius: 2px;
    max-width: calc(100% - 28px);
}
/* 无 banner 时的降级面板：字格纹 + 品牌字 */
.hero-empty {
    display: flex; align-items: center; justify-content: center;
    background:
        repeating-linear-gradient(0deg, transparent 0 23px, var(--line-2) 23px 24px),
        repeating-linear-gradient(90deg, transparent 0 23px, var(--line-2) 23px 24px),
        var(--bg);
}
.hero-empty .ghost {
    font-family: var(--lat); font-size: clamp(34px, 5vw, 54px); font-weight: 600;
    letter-spacing: .1em; color: #d3dae2; user-select: none;
}
.hero-empty .ghost i { font-style: normal; color: var(--acc); }
.hero-media-foot { display: flex; justify-content: center; margin-top: 14px; }
.ticks { display: flex; gap: 8px; }
.ticks span { width: 26px; height: 2px; background: var(--line); cursor: pointer; transition: background .2s; }
.ticks span.on { background: var(--acc); }

/* ============ 通用区块 ============ */
.sec { padding: 96px 0; }
.sec.gray { background: var(--bg); border-top: 1px solid var(--line-2); border-bottom: 1px solid var(--line-2); }
.sec-head {
    display: flex; align-items: flex-end; justify-content: space-between;
    gap: 20px; padding-bottom: 18px; margin-bottom: 40px;
    border-bottom: 1px solid var(--line);
}
.sec-head .eyebrow { display: block; margin-bottom: 8px; }
.sec-head h1, .sec-head h2 { font-size: 26px; font-weight: 600; line-height: 1.3; }
.more { color: var(--acc); font-size: 13px; white-space: nowrap; padding-bottom: 4px; }
.more:hover { text-decoration: underline; }
.empty { text-align: center; color: var(--mut); padding: 56px 0; }
.empty a { color: var(--acc); }

.intro { font-size: 16px; color: var(--ink-2); max-width: 46em; }
.intro p { margin-bottom: 12px; }
.intro .more { display: inline-block; margin-top: 8px; }

/* ============ 产品卡 ============ */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 24px; }
.card {
    background: #fff; border: 1px solid var(--line); border-radius: 2px; overflow: hidden;
    display: flex; flex-direction: column;
    transition: border-color .2s, box-shadow .2s;
}
.card:hover { border-color: #c9d4e2; box-shadow: var(--shadow); }
.card-img {
    aspect-ratio: 1 / 1; background: #fff; padding: 22px; overflow: hidden;
    border-bottom: 1px solid var(--line-2);
}
.card-img img {
    width: 100%; height: 100%; object-fit: contain;
    transition: transform .3s ease;
}
.card:hover .card-img img { transform: scale(1.03); }
.card-body { padding: 15px 18px 18px; }
.card-body h3 { font-size: 15px; font-weight: 600; line-height: 1.5; transition: color .15s; }
.card:hover .card-body h3 { color: var(--acc); }
.card-model {
    display: block; font-family: var(--lat); font-size: 12px; font-weight: 500;
    letter-spacing: .04em; color: var(--acc); margin-top: 5px;
}
.card-body p {
    font-size: 13px; color: var(--mut); line-height: 1.65; margin-top: 8px;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

/* ============ 三级筛选（文字页签 + 细线下划） ============ */
.filter-row { display: flex; align-items: baseline; gap: 14px; margin-bottom: 12px; }
.filter-label {
    flex: 0 0 auto; font-size: 12px; color: var(--mut); letter-spacing: .08em;
}
.cat-pills { display: flex; flex-wrap: wrap; gap: 4px 18px; }
.cat-pills a {
    position: relative; padding: 5px 0; font-size: 14px; color: var(--ink-2);
    transition: color .15s;
}
.cat-pills a::after {
    content: ""; position: absolute; left: 0; right: 100%; bottom: 0;
    height: 2px; background: var(--acc); transition: right .2s;
}
.cat-pills a:hover { color: var(--acc); }
.cat-pills a:hover::after { right: 0; }
.cat-pills a.on { color: var(--ink); font-weight: 600; }
.cat-pills a.on::after { right: 0; }
.filters { margin-bottom: 36px; padding-bottom: 20px; border-bottom: 1px solid var(--line-2); }

/* ============ 新闻 / 案例 ============ */
.news-list { display: flex; flex-direction: column; }
.news-item {
    display: flex; gap: 22px; padding: 22px 0; align-items: flex-start;
    border-bottom: 1px solid var(--line-2);
}
.news-item:first-child { border-top: 1px solid var(--line-2); }
.news-date {
    flex: 0 0 auto; width: 96px; font-family: var(--lat); font-size: 13px;
    font-weight: 500; color: var(--mut); letter-spacing: .02em;
    padding-top: 3px; font-variant-numeric: tabular-nums;
}
.news-txt h3 { font-size: 16px; font-weight: 600; line-height: 1.6; transition: color .15s; }
.news-item:hover .news-txt h3 { color: var(--acc); }
.news-txt p {
    font-size: 13px; color: var(--mut); margin-top: 4px;
    display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden;
}
.news-time {
    font-family: var(--lat); font-size: 12px; color: var(--mut);
    margin-top: 6px; display: inline-block; font-variant-numeric: tabular-nums;
}
.tag-top {
    display: inline-block; font-size: 11px; line-height: 1.5; color: var(--acc);
    border: 1px solid var(--acc); border-radius: 2px; padding: 0 6px;
    vertical-align: 2px; font-weight: 400; margin-left: 8px;
}
.page-list .news-cover {
    width: 160px; height: 100px; object-fit: cover; border-radius: 2px;
    border: 1px solid var(--line); flex: 0 0 auto; background: var(--bg);
}

/* ============ 联系横条（浅底细线，无渐变） ============ */
.contact-band {
    background: var(--bg); border-top: 1px solid var(--line-2);
    border-bottom: 1px solid var(--line-2); padding: 60px 0;
}
.cb-in { display: flex; align-items: center; gap: 64px; flex-wrap: wrap; }
.cb-item span { display: block; font-size: 12px; color: var(--mut); letter-spacing: .08em; }
.cb-item b {
    font-family: var(--lat); font-size: 26px; font-weight: 600;
    color: var(--ink); letter-spacing: .02em; font-variant-numeric: tabular-nums;
}
.cb-item b.accent { color: var(--acc); }
.contact-band .btn-line { margin-left: auto; background: transparent; }

/* ============ 产品详情 ============ */
.crumb { font-size: 13px; color: var(--mut); margin-bottom: 28px; }
.crumb a:hover { color: var(--acc); }
.pd { display: grid; grid-template-columns: 480px 1fr; gap: 48px; align-items: start; }
.pd-gallery img#pdMain {
    width: 100%; aspect-ratio: 1 / 1; object-fit: contain; background: #fff;
    border: 1px solid var(--line); border-radius: 2px; padding: 20px;
}
.pd-thumbs { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.pd-thumbs img {
    width: 64px; height: 64px; object-fit: contain; background: #fff;
    border: 1px solid var(--line); border-radius: 2px; cursor: pointer;
    padding: 5px; transition: border-color .15s;
}
.pd-thumbs img:hover, .pd-thumbs img.on { border-color: var(--acc); }
.pd-info h1 { font-size: 28px; font-weight: 600; line-height: 1.4; margin-bottom: 14px; }
.pd-model { font-family: var(--lat); font-size: 14px; font-weight: 500; color: var(--acc); letter-spacing: .04em; }
.pd-summary {
    color: var(--ink-2); font-size: 15px; line-height: 1.8;
    margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--line);
}
.pd-cat { color: var(--mut); font-size: 13px; margin-top: 16px; }

/* 区块小标题：短强调横线记号 */
.block-title {
    display: flex; align-items: center; gap: 12px;
    font-size: 20px; font-weight: 600; margin: 56px 0 22px;
}
.block-title::before { content: ""; width: 18px; height: 2px; background: var(--acc); flex: 0 0 auto; }

/* 参数表 = 工业规格书：上下深线封口 + 横向细行线 */
.param-tbl {
    width: 100%; border-collapse: collapse; font-size: 14px;
    border-top: 2px solid var(--ink); border-bottom: 2px solid var(--ink);
}
.param-tbl td { padding: 11px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.param-tbl tr:last-child td { border-bottom: none; }
.param-tbl td:first-child { width: 200px; color: var(--mut); white-space: nowrap; }

.detail-body { font-size: 15px; color: var(--ink-2); }
.detail-body p { margin-bottom: 12px; }
.pd-dimgs { max-width: 860px; }
.pd-dimgs figure { margin: 0 0 20px; }
.pd-dimgs img { width: 100%; display: block; border: 1px solid var(--line); border-radius: 2px; }
.pd-dimgs figcaption { text-align: center; color: var(--mut); font-size: 13px; margin-top: 8px; }
.pd-files a {
    display: flex; align-items: baseline; gap: 10px;
    padding: 13px 2px; border-bottom: 1px solid var(--line-2);
    font-family: var(--lat); font-size: 14px; font-weight: 500; color: var(--acc);
}
.pd-files a:hover { text-decoration: underline; }
.pd-files a em { font-style: normal; font-size: 12px; color: var(--mut); }

/* ============ 新闻详情 ============ */
.news-detail h1 { font-size: 28px; line-height: 1.5; font-weight: 600; margin-bottom: 14px; }
.nd-meta {
    font-family: var(--lat); color: var(--mut); font-size: 13px;
    margin-bottom: 28px; padding-bottom: 16px; border-bottom: 1px solid var(--line);
    font-variant-numeric: tabular-nums;
}
.nd-cover { border: 1px solid var(--line); border-radius: 2px; margin-bottom: 28px; }

/* ============ 关于 / 荣誉 ============ */
.about-body { font-size: 16px; color: var(--ink-2); }
.about-body p { margin-bottom: 14px; }
.honor-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 24px; }
.honor-item { background: #fff; border: 1px solid var(--line); border-radius: 2px; overflow: hidden; }
.honor-item img { width: 100%; aspect-ratio: 3 / 2; object-fit: contain; background: #fff; padding: 14px; }
.honor-item figcaption {
    padding: 10px 14px; font-size: 13px; color: var(--ink-2); text-align: center;
    border-top: 1px solid var(--line-2);
}

/* ============ 联系页 ============ */
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.c-item { background: #fff; border: 1px solid var(--line); border-radius: 2px; padding: 30px 28px; }
.c-item h3 {
    font-size: 12px; color: var(--mut); font-weight: 500;
    letter-spacing: .1em; margin-bottom: 10px;
}
.c-big {
    font-family: var(--lat); font-size: 22px; color: var(--ink); font-weight: 600;
    font-variant-numeric: tabular-nums; word-break: break-all;
}
.c-big.accent { color: var(--acc); }
.c-item .qr {
    width: 140px; height: 140px; object-fit: contain; margin-top: 14px;
    background: #fff; border: 1px solid var(--line); border-radius: 2px; padding: 6px;
}

/* ============ 分页 ============ */
.pager {
    display: flex; justify-content: center; align-items: center; gap: 20px;
    margin-top: 48px; font-size: 13px; color: var(--mut);
    font-variant-numeric: tabular-nums;
}
.pager a { padding: 7px 18px; border: 1px solid var(--line); border-radius: 2px; background: #fff; transition: border-color .15s, color .15s; }
.pager a:hover { border-color: var(--acc); color: var(--acc); }

/* ============ 页脚（浅色） ============ */
.site-foot { background: #fff; border-top: 1px solid var(--line); margin-top: 72px; }
.foot-grid { display: grid; grid-template-columns: 2fr 2fr 1fr; gap: 44px; padding: 56px 24px 36px; }
.foot-col h3 {
    font-size: 12px; color: var(--mut); font-weight: 500;
    letter-spacing: .1em; margin-bottom: 14px;
}
.foot-col .brand { margin-bottom: 10px; }
.foot-col p { font-size: 13px; color: var(--ink-2); margin-bottom: 6px; line-height: 1.7; }
.foot-col a:hover { color: var(--acc); }
.foot-copy {
    border-top: 1px solid var(--line-2); padding: 18px 24px; font-size: 12px;
    color: var(--mut); display: flex; justify-content: space-between;
    gap: 16px; flex-wrap: wrap;
}
.foot-copy a { color: var(--mut); }
.foot-copy a:hover { color: var(--acc); }

/* ============ 移动端底部标签栏（≤768px 显示，SVG 线性图标） ============ */
.m-tabbar {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 200;
    display: none; background: #fff; border-top: 1px solid var(--line);
    padding-bottom: env(safe-area-inset-bottom);
}
.m-tabbar a {
    flex: 1; display: flex; flex-direction: column; align-items: center; gap: 2px;
    padding: 7px 0 6px; color: var(--mut); font-size: 10px; line-height: 1.4;
}
.m-tabbar a svg { width: 22px; height: 22px; }
.m-tabbar a.active { color: var(--acc); font-weight: 600; }

/* ============ 入场动效（仅 JS 可用时；无 JS 内容全可见，保爬虫） ============ */
.js .rv { opacity: 0; transform: translateY(14px); transition: opacity .7s cubic-bezier(.2, .6, .2, 1), transform .7s cubic-bezier(.2, .6, .2, 1); }
.js .rv.in { opacity: 1; transform: none; }
.js .hero-copy .rv:nth-child(2) { transition-delay: .08s; }
.js .hero-copy .rv:nth-child(3) { transition-delay: .16s; }
.js .hero-copy .rv:nth-child(4) { transition-delay: .24s; }

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation: none !important; transition: none !important; }
    .js .rv { opacity: 1; transform: none; }
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
    .hero-in { grid-template-columns: 1fr 1fr; gap: 44px; }
    .pd { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
    body { font-size: 15px; padding-bottom: calc(56px + env(safe-area-inset-bottom)); }
    .wrap { padding: 0 16px; }
    .m-tabbar { display: flex; }

    /* 头部：导航移交底部标签栏 */
    .head-in { height: 52px; gap: 12px; }
    .main-nav, .head-phone, .brand-lat { display: none; }
    .brand-name { font-size: 16px; }

    /* hero 单列，媒体在下 */
    .hero { padding: 44px 0 52px; }
    .hero-in { grid-template-columns: 1fr; gap: 32px; }
    .hero-copy h1 { font-size: 27px; }
    .hero-sub { margin-bottom: 26px; font-size: 15px; }
    .hero-frame { aspect-ratio: 4 / 3; }

    /* 区块节奏收紧 */
    .sec { padding: 44px 0; }
    .sec-head { margin-bottom: 22px; padding-bottom: 12px; }
    .sec-head h1, .sec-head h2 { font-size: 20px; }
    .sec-head .eyebrow { margin-bottom: 4px; }
    .crumb { margin-bottom: 16px; font-size: 12px; }

    /* 筛选行横滑 */
    .filter-row { gap: 10px; margin-bottom: 8px; }
    .filter-label { flex-basis: 52px; }
    .cat-pills { flex-wrap: nowrap; overflow-x: auto; gap: 0 14px; -webkit-overflow-scrolling: touch; }
    .cat-pills a { flex: 0 0 auto; }
    .filters { margin-bottom: 22px; }

    /* 产品卡两列 */
    .cards { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .card-img { padding: 12px; }
    .card-body { padding: 10px 12px 12px; }
    .card-body h3 { font-size: 14px; }
    .card-body p { display: none; }

    /* 新闻/案例 */
    .news-item { gap: 14px; padding: 14px 0; }
    .news-date { width: 72px; font-size: 12px; }
    .news-txt h3 { font-size: 15px; }
    .page-list .news-cover { width: 104px; height: 70px; }

    /* 产品详情单列 */
    .pd { grid-template-columns: 1fr; gap: 20px; }
    .pd-info h1 { font-size: 21px; }
    .pd-thumbs img { width: 56px; height: 56px; }
    .block-title { font-size: 17px; margin: 36px 0 14px; }
    .param-tbl { font-size: 13px; }
    .param-tbl td { padding: 9px 6px; }
    .param-tbl td:first-child { width: 38%; white-space: normal; }

    /* 联系横条 / 联系页 */
    .cb-in { gap: 18px; }
    .cb-item b { font-size: 19px; }
    .contact-band .btn-line { margin-left: 0; width: 100%; justify-content: center; }
    .contact-grid { grid-template-columns: 1fr; }

    /* 荣誉 / 页脚 */
    .honor-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .honor-item img { padding: 8px; }
    .foot-grid { grid-template-columns: 1fr; gap: 20px; padding: 32px 16px 24px; }
    .foot-copy { padding: 14px 16px; }

    .pager { gap: 12px; margin-top: 28px; }
    .news-detail h1 { font-size: 21px; }
}

@media (max-width: 400px) {
    .hero-copy h1 { font-size: 24px; }
    .cb-item b { font-size: 17px; }
}

/* ============ 导航下拉（产品中心：大类→小类，2026-10-13） ============ */
.nav-drop { position: relative; }
.nav-drop-link {
    position: relative; padding: 6px 0; font-size: 15px; color: var(--ink-2);
    display: inline-flex; align-items: center; gap: 4px; transition: color .15s;
}
.nav-drop-link svg { width: 14px; height: 14px; transition: transform .2s; }
.nav-drop:hover .nav-drop-link, .nav-drop.active .nav-drop-link { color: var(--acc); }
.nav-drop:hover .nav-drop-link svg { transform: rotate(180deg); }
.nav-drop-panel {
    position: absolute; top: 100%; left: -24px; z-index: 60;
    min-width: 560px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px 28px;
    background: #fff; border: 1px solid var(--line); border-top: 2px solid var(--acc);
    border-radius: 0 0 4px 4px; box-shadow: 0 14px 34px rgba(15,23,32,.08);
    padding: 18px 22px 16px; opacity: 0; visibility: hidden; transform: translateY(6px);
    transition: opacity .18s, transform .18s, visibility .18s;
}
.nav-drop:hover .nav-drop-panel, .nav-drop:focus-within .nav-drop-panel {
    opacity: 1; visibility: visible; transform: translateY(0);
}
.nav-drop-group { padding: 2px 0; }
.nav-drop-major { display: block; position: static; font-size: 14px; font-weight: 600; color: var(--ink); padding: 4px 0; }
.nav-drop-major::after { display: none; }
.nav-drop-major:hover { color: var(--acc); }
.nav-drop-major.all { color: var(--acc); }
.nav-drop-subs { display: flex; flex-wrap: wrap; gap: 4px 14px; }
.nav-drop-subs a { position: static; font-size: 13px; color: var(--mut); padding: 2px 0; }
.nav-drop-subs a::after { display: none; }
.nav-drop-subs a:hover { color: var(--acc); }

/* ============ 系列详情页 / 产品页补充（2026-10-13） ============ */
.member-tbl th {
    font-size: 12px; font-weight: 600; color: var(--mut); text-align: left;
    padding: 10px; border-bottom: 2px solid var(--ink); white-space: nowrap; letter-spacing: .02em;
}
.member-tbl td { font-size: 14px; }
.member-tbl td:first-child { width: auto; }
.member-tbl .mono { font-family: var(--lat); letter-spacing: .02em; }
.member-tbl td:last-child { text-align: right; }
.pd-features { margin: 18px 0 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 6px; }
.pd-features li { position: relative; padding-left: 16px; font-size: 13px; color: var(--ink-2); }
.pd-features li::before { content: ""; position: absolute; left: 0; top: .62em; width: 6px; height: 2px; background: var(--acc); }
.pd-cat a { color: var(--mut); }
.pd-cat a:hover { color: var(--acc); }

@media (max-width: 900px) {
    .nav-drop-panel { display: none; }
}