/* ==========================================================================
   m13 · Modern Tech Dark · 现代科技暗色 B2B
   Personality: 专业、可信、信息密集的电子/科技类供应商商品展示
   Deep navy surfaces · cyan accent · sharp data-dense product grids
   Type: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", Arial, sans-serif (headings) + -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", Arial, sans-serif (body)
   ========================================================================== */

:root {
    --m13-bg:        #0a111e;   /* page background */
    --m13-bg-2:      #0e1726;   /* primary surface (sections alt) */
    --m13-card:      #101c30;   /* card surface */
    --m13-card-2:    #142339;   /* raised surface */
    --m13-ink:       #e6edf5;   /* primary text */
    --m13-ink-2:     #a8b6cb;   /* secondary text */
    --m13-ink-3:     #6c7d96;   /* muted text */
    --m13-line:      #1e2e45;   /* hairline border */
    --m13-line-2:    #2a3d59;   /* stronger border */
    --m13-primary:   #0e1726;   /* brand base (deep navy) */
    --m13-accent:    #18c0d4;   /* cyan accent */
    --m13-accent-2:  #0fa3b6;   /* darker accent */
    --m13-accent-soft: rgba(24, 192, 212, 0.12);
    --zcfab-accent: #18c0d4;
    --m13-warn:      #f4a52a;   /* price / highlight */
    --m13-ok:        #2fbf71;   /* verified */

    --m13-display:   -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", Arial, sans-serif;
    --m13-body:      -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", Arial, sans-serif;

    --m13-shell:     1280px;
    --m13-radius:    8px;
    --m13-radius-sm: 5px;
    --m13-shadow:    0 8px 28px rgba(0, 0, 0, 0.35);
    --m13-shadow-sm: 0 3px 12px rgba(0, 0, 0, 0.28);
}

* { box-sizing: border-box; }

html, body.m13-body {
    margin: 0;
    padding: 0;
    background: var(--m13-bg);
    color: var(--m13-ink);
    font-family: var(--m13-body);
    font-weight: 400;
    font-size: 14px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a { color: var(--m13-accent); text-decoration: none; transition: color .16s ease; }
a:hover { color: #4fd6e6; }

img { max-width: 100%; display: block; border: 0; }
ul, ol { list-style: none; padding: 0; margin: 0; }
h1, h2, h3, h4 { font-family: var(--m13-display); margin: 0; font-weight: 700; letter-spacing: -0.01em; }

.seo-h1 { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.m13-shell {
    width: 100%;
    max-width: var(--m13-shell);
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
}
.m13-shell-narrow { max-width: 920px; }
.m13-main { display: block; }

/* ──────────────────────────────────────────────
   BUTTONS
   ────────────────────────────────────────────── */
.m13-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-family: var(--m13-display);
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 0.01em;
    padding: 12px 22px;
    border-radius: var(--m13-radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all .16s ease;
    white-space: nowrap;
}
.m13-btn-primary {
    background: var(--m13-accent);
    color: #04222a;
    border-color: var(--m13-accent);
}
.m13-btn-primary:hover { background: #2fd3e6; color: #04222a; box-shadow: 0 6px 18px rgba(24,192,212,.32); }
.m13-btn-accent {
    background: var(--m13-warn);
    color: #2a1c00;
    border-color: var(--m13-warn);
}
.m13-btn-accent:hover { background: #ffb945; color: #2a1c00; box-shadow: 0 6px 18px rgba(244,165,42,.3); }
.m13-btn-outline {
    background: transparent;
    color: var(--m13-ink);
    border-color: var(--m13-line-2);
}
.m13-btn-outline:hover { border-color: var(--m13-accent); color: var(--m13-accent); }
.m13-btn-sm { padding: 9px 16px; font-size: 13px; }
.m13-btn-block { display: flex; width: 100%; }

/* ──────────────────────────────────────────────
   HEADER
   ────────────────────────────────────────────── */
.m13-mast {
    background: var(--m13-primary);
    border-bottom: 1px solid var(--m13-line);
    position: relative;
    z-index: 10;
}
.m13-mast-top {
    background: #08101c;
    border-bottom: 1px solid var(--m13-line);
    font-size: 12px;
    color: var(--m13-ink-3);
}
.m13-mast-top-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 38px;
    gap: 16px;
}
.m13-mast-welcome { display: inline-flex; align-items: center; gap: 6px; }
.m13-dot {
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--m13-ok);
    box-shadow: 0 0 6px rgba(47,191,113,.7);
    display: inline-block;
}
.m13-mast-links a { color: var(--m13-ink-2); }
.m13-mast-links a:hover { color: var(--m13-accent); }
.m13-mast-links .sep { color: var(--m13-line-2); margin: 0 8px; }

.m13-mast-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 20px 0;
}
.m13-brand { display: flex; align-items: center; gap: 16px; min-width: 0; }
.m13-brand-logo {
    width: 56px; height: 56px;
    object-fit: contain;
    background: #fff;
    border-radius: var(--m13-radius-sm);
    padding: 6px;
    flex-shrink: 0;
}
.m13-brand-text { min-width: 0; }
.m13-brand-text .h1 {
    font-family: var(--m13-display);
    font-size: 23px;
    font-weight: 700;
    color: var(--m13-ink);
    display: block;
    line-height: 1.2;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.m13-brand-text p {
    margin: 3px 0 0;
    font-size: 12.5px;
    color: var(--m13-ink-3);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 420px;
}
.m13-mast-cta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
    flex-shrink: 0;
}
.m13-mast-cta small {
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--m13-ink-3);
}
.m13-mast-cta strong {
    font-family: var(--m13-display);
    font-size: 24px;
    color: var(--m13-accent);
    line-height: 1;
}
.m13-mast-cta .m13-btn { margin-top: 6px; }

.m13-nav {
    background: #08101c;
    border-top: 1px solid var(--m13-line);
}
.m13-nav-inner { display: flex; flex-wrap: wrap; }
.m13-nav-inner a {
    font-family: var(--m13-display);
    font-weight: 600;
    font-size: 15px;
    color: var(--m13-ink-2);
    padding: 15px 22px;
    position: relative;
    transition: color .16s ease, background .16s ease;
}
.m13-nav-inner a:hover { color: var(--m13-ink); background: rgba(255,255,255,.03); }
.m13-nav-inner a.is-active { color: var(--m13-accent); }
.m13-nav-inner a.is-active::after {
    content: ''; position: absolute; left: 22px; right: 22px; bottom: 0; height: 2px;
    background: var(--m13-accent);
}

/* ──────────────────────────────────────────────
   TRUST STRIP
   ────────────────────────────────────────────── */
.m13-trust {
    background: var(--m13-bg-2);
    border-bottom: 1px solid var(--m13-line);
}
.m13-trust-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--m13-line);
}
.m13-trust-cell {
    background: var(--m13-bg-2);
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 22px 20px;
}
.m13-trust-cell .ic {
    width: 42px; height: 42px;
    border-radius: var(--m13-radius-sm);
    background: var(--m13-accent-soft);
    color: var(--m13-accent);
    display: flex; align-items: center; justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}
.m13-trust-cell strong { display: block; font-family: var(--m13-display); font-size: 15px; color: var(--m13-ink); }
.m13-trust-cell span { font-size: 12px; color: var(--m13-ink-3); }

/* ──────────────────────────────────────────────
   HERO
   ────────────────────────────────────────────── */
.m13-hero {
    background:
        radial-gradient(900px 420px at 78% -10%, rgba(24,192,212,.10), transparent 60%),
        linear-gradient(180deg, var(--m13-primary), var(--m13-bg));
    border-bottom: 1px solid var(--m13-line);
    padding: 54px 0;
}
.m13-hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 48px;
    align-items: center;
}
.m13-hero-tag {
    display: inline-flex; align-items: center; gap: 6px;
    font-family: var(--m13-display);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--m13-accent);
    background: var(--m13-accent-soft);
    border: 1px solid rgba(24,192,212,.3);
    padding: 6px 14px;
    border-radius: 40px;
}
.m13-hero-title {
    font-size: 42px;
    line-height: 1.12;
    margin: 18px 0 14px;
    color: var(--m13-ink);
}
.m13-hero .lead {
    font-size: 16px;
    color: var(--m13-ink-2);
    margin: 0 0 26px;
    max-width: 560px;
    line-height: 1.75;
}
.m13-cta-row { display: flex; flex-wrap: wrap; gap: 12px; }
.m13-hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-top: 34px;
}
.m13-hero-stats .stat {
    background: var(--m13-card);
    border: 1px solid var(--m13-line);
    border-radius: var(--m13-radius-sm);
    padding: 16px 14px;
}
.m13-hero-stats .stat strong {
    display: block;
    font-family: var(--m13-display);
    font-size: 24px;
    color: var(--m13-accent);
    line-height: 1.1;
}
.m13-hero-stats .stat span { font-size: 12px; color: var(--m13-ink-3); }
.m13-hero-img {
    border: 1px solid var(--m13-line);
    border-radius: var(--m13-radius);
    overflow: hidden;
    background: var(--m13-card);
    box-shadow: var(--m13-shadow);
}
.m13-hero-img img { width: 100%; height: 360px; object-fit: cover; }

/* ──────────────────────────────────────────────
   SECTION
   ────────────────────────────────────────────── */
.m13-section { padding: 52px 0; }
.m13-section-alt { background: var(--m13-bg-2); border-top: 1px solid var(--m13-line); border-bottom: 1px solid var(--m13-line); }
.m13-section-h {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 28px;
    border-bottom: 1px solid var(--m13-line);
    padding-bottom: 16px;
}
.m13-section-h h2 {
    font-size: 26px;
    color: var(--m13-ink);
    position: relative;
    padding-left: 14px;
}
.m13-section-h h2::before {
    content: ''; position: absolute; left: 0; top: 4px; bottom: 4px; width: 4px;
    background: var(--m13-accent); border-radius: 2px;
}
.m13-section-h h2 small {
    display: block;
    font-family: var(--m13-body);
    font-size: 13px;
    font-weight: 400;
    color: var(--m13-ink-3);
    letter-spacing: 0;
    margin-top: 5px;
}
.m13-section-h .more {
    font-family: var(--m13-display);
    font-size: 13px;
    font-weight: 600;
    color: var(--m13-ink-2);
    white-space: nowrap;
}
.m13-section-h .more:hover { color: var(--m13-accent); }

/* ──────────────────────────────────────────────
   CATEGORY PILLS
   ────────────────────────────────────────────── */
.m13-pills { display: flex; flex-wrap: wrap; gap: 10px; }
.m13-pill {
    font-family: var(--m13-display);
    font-size: 13.5px;
    font-weight: 500;
    color: var(--m13-ink-2);
    background: var(--m13-card);
    border: 1px solid var(--m13-line);
    border-radius: 40px;
    padding: 8px 18px;
    transition: all .16s ease;
}
.m13-pill:hover { border-color: var(--m13-accent); color: var(--m13-accent); }
.m13-pill.is-on { background: var(--m13-accent); color: #04222a; border-color: var(--m13-accent); }

/* ──────────────────────────────────────────────
   FEATURED TOP GRID
   ────────────────────────────────────────────── */
.m13-top-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.m13-top-card {
    display: flex;
    flex-direction: column;
    background: var(--m13-card);
    border: 1px solid var(--m13-line);
    border-radius: var(--m13-radius);
    overflow: hidden;
    transition: border-color .16s ease, transform .16s ease, box-shadow .16s ease;
}
.m13-top-card:hover { border-color: var(--m13-accent); transform: translateY(-3px); box-shadow: var(--m13-shadow); }
.m13-top-card .img { position: relative; aspect-ratio: 4/3; background: #fff; overflow: hidden; }
.m13-top-card .img img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
.m13-top-card:hover .img img { transform: scale(1.04); }
.m13-top-card .badge {
    position: absolute; top: 10px; left: 10px;
    font-family: var(--m13-display);
    font-size: 11px; font-weight: 700;
    color: #2a1c00; background: var(--m13-warn);
    padding: 3px 9px; border-radius: 4px;
}
.m13-top-card .body { padding: 16px; display: flex; flex-direction: column; gap: 10px; }
.m13-top-card .ttl {
    margin: 0;
    font-family: var(--m13-display);
    font-size: 16px;
    font-weight: 600;
    color: var(--m13-ink);
    line-height: 1.4;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
    min-height: 44px;
}
.m13-top-card .meta { display: flex; flex-wrap: wrap; gap: 6px; }
.m13-top-card .meta .tag {
    font-size: 11.5px; color: var(--m13-ink-2);
    background: var(--m13-card-2); border: 1px solid var(--m13-line);
    padding: 2px 9px; border-radius: 4px;
}
.m13-top-card .meta .tag.m { color: var(--m13-accent); border-color: rgba(24,192,212,.3); }
.m13-top-card .moq {
    display: flex; align-items: center; justify-content: space-between;
    border-top: 1px dashed var(--m13-line);
    padding-top: 10px;
    font-size: 12.5px;
}
.m13-top-card .moq .label { color: var(--m13-ink-3); }
.m13-top-card .moq .val { color: var(--m13-ink); font-weight: 600; }
.m13-top-card .price-row { display: flex; align-items: baseline; }
.m13-top-card .price {
    font-family: var(--m13-display);
    font-size: 24px; font-weight: 800; color: var(--m13-accent);
}
.m13-top-card .price small { font-size: 12px; font-weight: 400; color: var(--m13-ink-3); margin-left: 2px; }
.m13-top-card .ask {
    font-family: var(--m13-display);
    font-size: 13px; font-weight: 700;
    color: #04222a;
    background: var(--m13-accent);
    border-radius: var(--m13-radius-sm);
    text-align: center;
    padding: 9px 12px; margin-top: 4px;
    transition: background .16s ease, box-shadow .16s ease;
}
.m13-top-card:hover .ask { background: #2fd3e6; box-shadow: 0 6px 16px rgba(24,192,212,.3); }

/* ──────────────────────────────────────────────
   PRODUCT GRID / CARD
   ────────────────────────────────────────────── */
.m13-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}
.m13-grid-5 { grid-template-columns: repeat(5, 1fr); }
.m13-card {
    display: flex;
    flex-direction: column;
    background: var(--m13-card);
    border: 1px solid var(--m13-line);
    border-radius: var(--m13-radius);
    overflow: hidden;
    transition: border-color .16s ease, transform .16s ease, box-shadow .16s ease;
}
.m13-card:hover { border-color: var(--m13-accent); transform: translateY(-3px); box-shadow: var(--m13-shadow-sm); }
.m13-card-img { aspect-ratio: 1/1; background: #fff; overflow: hidden; }
.m13-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
.m13-card:hover .m13-card-img img { transform: scale(1.05); }
.m13-card-body { padding: 13px 14px; display: flex; flex-direction: column; gap: 8px; }
.m13-card-title {
    margin: 0;
    font-size: 14px;
    font-weight: 500;
    color: var(--m13-ink);
    line-height: 1.45;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
    min-height: 40px;
}
.m13-card-spec {
    margin: 0;
    font-size: 11.5px;
    color: var(--m13-ink-3);
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.m13-card-meta { display: flex; align-items: center; justify-content: space-between; gap: 6px; margin-top: auto; }
.m13-card-price {
    font-family: var(--m13-display);
    font-size: 18px; font-weight: 800; color: var(--m13-accent);
}
.m13-card-tag {
    font-size: 11px; color: var(--m13-ink-2);
    background: var(--m13-card-2); border: 1px solid var(--m13-line);
    padding: 2px 8px; border-radius: 4px; white-space: nowrap;
}

/* ──────────────────────────────────────────────
   ABOUT
   ────────────────────────────────────────────── */
.m13-about-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 40px; align-items: center; }
.m13-about-img {
    border: 1px solid var(--m13-line);
    border-radius: var(--m13-radius);
    overflow: hidden;
    background: var(--m13-card);
}
.m13-about-img img { width: 100%; height: 320px; object-fit: cover; }
.m13-about-text .label {
    font-family: var(--m13-display);
    font-size: 12px; font-weight: 600;
    letter-spacing: 0.1em; text-transform: uppercase;
    color: var(--m13-accent); margin-bottom: 10px;
}
.m13-about-text h3 { font-size: 26px; color: var(--m13-ink); margin: 0 0 14px; }
.m13-about-text p { font-size: 14.5px; color: var(--m13-ink-2); line-height: 1.8; margin: 0 0 22px; }

/* ──────────────────────────────────────────────
   CTA STRIP
   ────────────────────────────────────────────── */
.m13-cta-strip {
    background:
        radial-gradient(700px 300px at 85% 50%, rgba(24,192,212,.14), transparent 70%),
        linear-gradient(120deg, var(--m13-primary), #0a1422);
    border-top: 1px solid var(--m13-line);
    border-bottom: 1px solid var(--m13-line);
    padding: 36px 0;
}
.m13-cta-strip-row { display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.m13-cta-strip-row h3 { font-size: 25px; color: var(--m13-ink); margin: 0 0 6px; }
.m13-cta-strip-row h3 em { color: var(--m13-accent); font-style: normal; }
.m13-cta-strip-row p { margin: 0; color: var(--m13-ink-2); font-size: 14px; }
.m13-cta-strip .phone-block { text-align: right; display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }
.m13-cta-strip .phone-block .label { font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--m13-ink-3); }
.m13-cta-strip .phone-block .phone {
    font-family: var(--m13-display);
    font-size: 30px; font-weight: 700; color: var(--m13-accent); line-height: 1;
}

/* ──────────────────────────────────────────────
   BREADCRUMB
   ────────────────────────────────────────────── */
.m13-crumbs {
    background: var(--m13-bg-2);
    border-bottom: 1px solid var(--m13-line);
    font-size: 13px;
}
.m13-crumbs .m13-shell { padding-top: 13px; padding-bottom: 13px; }
.m13-crumbs a { color: var(--m13-ink-2); }
.m13-crumbs a:hover { color: var(--m13-accent); }
.m13-crumbs .sep { color: var(--m13-line-2); margin: 0 9px; }
.m13-crumbs span:not(.sep) { color: var(--m13-ink-3); }

/* ──────────────────────────────────────────────
   SUPPLY LAYOUT
   ────────────────────────────────────────────── */
.m13-layout { display: grid; grid-template-columns: 256px 1fr; gap: 26px; align-items: start; }
.m13-side-card {
    background: var(--m13-card);
    border: 1px solid var(--m13-line);
    border-radius: var(--m13-radius);
    padding: 18px;
    margin-bottom: 18px;
}
.m13-side-card h3 {
    font-size: 16px;
    color: var(--m13-ink);
    padding-bottom: 12px;
    margin-bottom: 12px;
    border-bottom: 1px solid var(--m13-line);
}
.m13-side-list { display: flex; flex-direction: column; }
.m13-side-list a {
    display: block;
    padding: 10px 12px;
    border-radius: var(--m13-radius-sm);
    color: var(--m13-ink-2);
    font-size: 14px;
    transition: all .14s ease;
}
.m13-side-list a:hover { background: var(--m13-card-2); color: var(--m13-ink); }
.m13-side-list a.is-on { background: var(--m13-accent-soft); color: var(--m13-accent); font-weight: 600; }
.m13-side-hotline .hint { font-size: 12px; color: var(--m13-ink-3); margin: 0 0 6px; }
.m13-side-hotline .tel {
    display: block;
    font-family: var(--m13-display);
    font-size: 23px; font-weight: 700; color: var(--m13-accent);
    margin-bottom: 12px;
}
.m13-side-hotline .desc { font-size: 12.5px; color: var(--m13-ink-3); line-height: 1.7; margin: 0 0 14px; }

.m13-supply-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--m13-card);
    border: 1px solid var(--m13-line);
    border-radius: var(--m13-radius-sm);
    padding: 9px 14px;
    margin-bottom: 18px;
    font-size: 13px;
}
.m13-supply-bar .cap { color: var(--m13-ink-3); margin-right: 6px; }
.m13-supply-bar a {
    padding: 5px 12px; border-radius: 4px; color: var(--m13-ink-2);
    font-family: var(--m13-display); font-weight: 500;
}
.m13-supply-bar a:hover { color: var(--m13-accent); }
.m13-supply-bar a.is-on { background: var(--m13-accent); color: #04222a; }
.m13-supply-bar .total { margin-left: auto; color: var(--m13-ink-3); }

/* ──────────────────────────────────────────────
   EMPTY STATE
   ────────────────────────────────────────────── */
.m13-empty {
    text-align: center;
    padding: 60px 20px;
    border: 1px dashed var(--m13-line-2);
    border-radius: var(--m13-radius);
    background: var(--m13-card);
}
.m13-empty .t1 { font-family: var(--m13-display); font-size: 19px; color: var(--m13-ink); margin: 0 0 8px; }
.m13-empty .t2 { color: var(--m13-ink-3); margin: 0 0 20px; font-size: 13px; }
.m13-empty-sm { padding: 30px 16px; }
.m13-empty-sm .t1 { font-size: 16px; }

/* ──────────────────────────────────────────────
   PAGER
   ────────────────────────────────────────────── */
.m13-pager { margin-top: 28px; display: flex; justify-content: center; }
.m13-pager .pagination, .m13-pager ul { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.m13-pager a, .m13-pager span {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 36px; height: 36px; padding: 0 11px;
    border: 1px solid var(--m13-line);
    border-radius: var(--m13-radius-sm);
    background: var(--m13-card);
    color: var(--m13-ink-2);
    font-family: var(--m13-display);
    font-size: 13px;
}
.m13-pager a:hover { border-color: var(--m13-accent); color: var(--m13-accent); }
.m13-pager .active span, .m13-pager .current, .m13-pager span.current {
    background: var(--m13-accent); color: #04222a; border-color: var(--m13-accent); font-weight: 700;
}

/* ──────────────────────────────────────────────
   PRODUCT DETAIL
   ────────────────────────────────────────────── */
.m13-prod-grid { display: grid; grid-template-columns: 460px 1fr; gap: 40px; align-items: start; }
.m13-prod-img {
    border: 1px solid var(--m13-line);
    border-radius: var(--m13-radius);
    overflow: hidden;
    background: #fff;
}
.m13-prod-img img { width: 100%; aspect-ratio: 1/1; object-fit: contain; }
.m13-prod-thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 12px; }
.m13-prod-thumb {
    border: 1px solid var(--m13-line);
    border-radius: var(--m13-radius-sm);
    overflow: hidden;
    background: #fff;
    aspect-ratio: 1/1;
    cursor: pointer;
    transition: border-color .14s ease;
}
.m13-prod-thumb:hover { border-color: var(--m13-accent); }
.m13-prod-thumb img { width: 100%; height: 100%; object-fit: cover; }

.m13-prod-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.m13-prod-tags .tag {
    font-family: var(--m13-display);
    font-size: 12px; font-weight: 600;
    color: var(--m13-ink-2);
    background: var(--m13-card-2); border: 1px solid var(--m13-line);
    padding: 4px 11px; border-radius: 4px;
}
.m13-prod-tags .tag.m { color: var(--m13-ok); border-color: rgba(47,191,113,.35); background: rgba(47,191,113,.1); }
.m13-prod-name { font-size: 28px; line-height: 1.3; color: var(--m13-ink); margin: 0 0 18px; }
.m13-prod-price-box {
    background: linear-gradient(120deg, var(--m13-card-2), var(--m13-card));
    border: 1px solid var(--m13-line);
    border-left: 4px solid var(--m13-warn);
    border-radius: var(--m13-radius-sm);
    padding: 18px 20px;
    margin-bottom: 22px;
    display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 10px;
}
.m13-prod-price { font-family: var(--m13-display); font-size: 36px; font-weight: 800; color: var(--m13-accent); }
.m13-prod-price small { font-size: 15px; font-weight: 400; color: var(--m13-ink-3); margin-left: 3px; }
.m13-prod-moq {
    font-family: var(--m13-display);
    font-size: 13px; color: var(--m13-ink-2);
    background: var(--m13-bg-2); border: 1px solid var(--m13-line);
    padding: 5px 12px; border-radius: 40px;
}
.m13-prod-attrs {
    display: grid;
    grid-template-columns: 110px 1fr;
    border: 1px solid var(--m13-line);
    border-radius: var(--m13-radius-sm);
    overflow: hidden;
    margin: 0 0 24px;
}
.m13-prod-attrs dt {
    background: var(--m13-bg-2);
    color: var(--m13-ink-3);
    padding: 11px 14px;
    font-size: 13px;
    border-bottom: 1px solid var(--m13-line);
    border-right: 1px solid var(--m13-line);
}
.m13-prod-attrs dd {
    margin: 0;
    padding: 11px 14px;
    font-size: 13.5px;
    color: var(--m13-ink);
    border-bottom: 1px solid var(--m13-line);
}
.m13-prod-attrs dt:last-of-type, .m13-prod-attrs dd:last-of-type { border-bottom: 0; }
.m13-prod-info .m13-cta-row { margin-bottom: 22px; }
.m13-prod-supplier {
    background: var(--m13-card);
    border: 1px solid var(--m13-line);
    border-radius: var(--m13-radius);
    padding: 18px 20px;
}
.m13-prod-supplier .lbl {
    font-family: var(--m13-display);
    font-size: 11px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase;
    color: var(--m13-ink-3);
}
.m13-prod-supplier .name { font-family: var(--m13-display); font-size: 17px; font-weight: 700; color: var(--m13-ink); margin: 6px 0 4px; }
.m13-prod-supplier .name em { font-style: normal; font-size: 12px; color: var(--m13-ok); background: rgba(47,191,113,.1); border: 1px solid rgba(47,191,113,.3); padding: 1px 8px; border-radius: 4px; }
.m13-prod-supplier .meta { font-size: 12.5px; color: var(--m13-ink-3); margin: 0 0 4px; line-height: 1.6; }
.m13-prod-supplier .link { display: inline-block; margin-top: 8px; font-family: var(--m13-display); font-weight: 600; font-size: 13px; }

/* ──────────────────────────────────────────────
   PROSE (rich text)
   ────────────────────────────────────────────── */
.m13-prose { color: var(--m13-ink-2); font-size: 15px; line-height: 1.9; }
.m13-prose p { margin: 0 0 16px; }
.m13-prose h1, .m13-prose h2, .m13-prose h3, .m13-prose h4 { color: var(--m13-ink); margin: 28px 0 14px; }
.m13-prose img { border-radius: var(--m13-radius-sm); margin: 14px 0; max-width: 100%; height: auto; }
.m13-prose a { color: var(--m13-accent); }
.m13-prose ul, .m13-prose ol { margin: 0 0 16px; padding-left: 22px; }
.m13-prose ul li { list-style: disc; }
.m13-prose ol li { list-style: decimal; }
.m13-prose table { width: 100%; border-collapse: collapse; margin: 16px 0; }
.m13-prose th, .m13-prose td { border: 1px solid var(--m13-line); padding: 9px 12px; text-align: left; }
.m13-prose th { background: var(--m13-bg-2); color: var(--m13-ink); }
.m13-prose-about { margin-top: 40px; }

/* ──────────────────────────────────────────────
   INFO (about) STAT CARDS
   ────────────────────────────────────────────── */
.m13-info-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.m13-info-card {
    background: var(--m13-card);
    border: 1px solid var(--m13-line);
    border-top: 3px solid var(--m13-accent);
    border-radius: var(--m13-radius);
    padding: 22px 20px;
    text-align: center;
}
.m13-info-card.m { border-top-color: var(--m13-warn); }
.m13-info-card.y { border-top-color: var(--m13-ok); }
.m13-info-card.v { border-top-color: #6a8fff; }
.m13-info-card .lbl { font-family: var(--m13-display); font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--m13-ink-3); }
.m13-info-card strong { display: block; font-family: var(--m13-display); font-size: 34px; font-weight: 700; color: var(--m13-ink); line-height: 1.2; margin: 8px 0 4px; }
.m13-info-card strong.sm { font-size: 22px; }
.m13-info-card .cn { font-size: 12.5px; color: var(--m13-ink-3); }

/* ──────────────────────────────────────────────
   CONTACT
   ────────────────────────────────────────────── */
.m13-contact-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 26px; align-items: start; }
.m13-contact-card {
    background: var(--m13-card);
    border: 1px solid var(--m13-line);
    border-radius: var(--m13-radius);
    padding: 26px;
}
.m13-contact-card h3 {
    font-size: 18px; color: var(--m13-ink);
    padding-bottom: 14px; margin-bottom: 16px;
    border-bottom: 1px solid var(--m13-line);
}
.m13-contact-list { display: flex; flex-direction: column; }
.m13-contact-list .row { display: flex; gap: 14px; padding: 12px 0; border-bottom: 1px dashed var(--m13-line); }
.m13-contact-list .row:last-child { border-bottom: 0; }
.m13-contact-list .lbl { flex: 0 0 84px; color: var(--m13-ink-3); font-size: 13px; }
.m13-contact-list .val { color: var(--m13-ink); font-size: 14px; }
.m13-contact-list .val strong a { color: var(--m13-accent); font-family: var(--m13-display); font-size: 18px; }
.m13-contact-act { margin-top: 22px; }
.m13-contact-qr { display: flex; gap: 18px; align-items: center; }
.m13-contact-qr img { width: 140px; height: 140px; object-fit: contain; background: #fff; border-radius: var(--m13-radius-sm); padding: 6px; flex-shrink: 0; }
.m13-contact-qr .qr-t1 { font-family: var(--m13-display); font-size: 14px; font-weight: 600; color: var(--m13-accent); margin: 0 0 8px; }
.m13-contact-qr .qr-t2 { color: var(--m13-ink-2); font-size: 13px; line-height: 1.7; margin: 0; }
.m13-contact-links { margin-top: 24px; padding-top: 20px; border-top: 1px dashed var(--m13-line); }
.m13-contact-links .lbl { font-family: var(--m13-display); font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--m13-ink-3); margin: 0 0 12px; }

/* ──────────────────────────────────────────────
   NEWS
   ────────────────────────────────────────────── */
.m13-news-list { display: flex; flex-direction: column; gap: 14px; }
.m13-news-item {
    display: flex;
    align-items: center;
    gap: 20px;
    background: var(--m13-card);
    border: 1px solid var(--m13-line);
    border-radius: var(--m13-radius);
    padding: 18px 22px;
    transition: border-color .16s ease, transform .16s ease;
}
.m13-news-item:hover { border-color: var(--m13-accent); transform: translateX(4px); }
.m13-news-date {
    flex: 0 0 76px;
    text-align: center;
    border-right: 1px solid var(--m13-line);
    padding-right: 18px;
}
.m13-news-date .day { display: block; font-family: var(--m13-display); font-size: 30px; font-weight: 700; color: var(--m13-accent); line-height: 1; }
.m13-news-date .ym { font-size: 12px; color: var(--m13-ink-3); }
.m13-news-body { flex: 1; min-width: 0; }
.m13-news-body h3 { font-size: 17px; color: var(--m13-ink); margin: 0 0 6px; }
.m13-news-item:hover .m13-news-body h3 { color: var(--m13-accent); }
.m13-news-body p { margin: 0; font-size: 13px; color: var(--m13-ink-3); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.m13-news-arrow { color: var(--m13-ink-3); font-size: 16px; flex-shrink: 0; }
.m13-news-item:hover .m13-news-arrow { color: var(--m13-accent); }

.m13-news-hero { border-bottom: 1px solid var(--m13-line); padding-bottom: 24px; margin-bottom: 30px; }
.m13-news-cat { font-family: var(--m13-display); font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--m13-accent); margin: 0 0 14px; }
.m13-news-title { font-size: 30px; line-height: 1.3; color: var(--m13-ink); margin: 0 0 16px; }
.m13-news-hero .meta { display: flex; flex-wrap: wrap; gap: 8px; font-size: 13px; color: var(--m13-ink-3); }
.m13-news-foot { margin-top: 44px; padding-top: 24px; border-top: 1px solid var(--m13-line); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 14px; }

/* ──────────────────────────────────────────────
   SITEMAP
   ────────────────────────────────────────────── */
.m13-map-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.m13-map-block {
    background: var(--m13-card);
    border: 1px solid var(--m13-line);
    border-radius: var(--m13-radius);
    padding: 22px 24px;
}
.m13-map-block h3 {
    font-size: 16px; color: var(--m13-ink);
    padding-bottom: 12px; margin-bottom: 14px;
    border-bottom: 1px solid var(--m13-line);
    position: relative; padding-left: 12px;
}
.m13-map-block h3::before { content: ''; position: absolute; left: 0; top: 2px; height: 16px; width: 3px; background: var(--m13-accent); border-radius: 2px; }
.m13-map-list { display: flex; flex-wrap: wrap; gap: 8px 18px; }
.m13-map-list a { color: var(--m13-ink-2); font-size: 13.5px; }
.m13-map-list a:hover { color: var(--m13-accent); }
.m13-map-products { margin-top: 22px; }

/* ──────────────────────────────────────────────
   FOOTER
   ────────────────────────────────────────────── */
.m13-foot {
    background: #070d18;
    border-top: 1px solid var(--m13-line);
    padding: 46px 0 0;
    margin-top: 0;
}
.m13-foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 32px; padding-bottom: 36px; }
.m13-foot-col h4 { font-size: 15px; color: var(--m13-ink); margin: 0 0 16px; }
.m13-foot-col ul li { margin-bottom: 9px; }
.m13-foot-col ul li a, .m13-foot-col ul li { color: var(--m13-ink-3); font-size: 13.5px; }
.m13-foot-col ul li a:hover { color: var(--m13-accent); }
.m13-foot-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.m13-foot-brand img { width: 46px; height: 46px; object-fit: contain; background: #fff; border-radius: var(--m13-radius-sm); padding: 5px; }
.m13-foot-brand strong { display: block; font-family: var(--m13-display); font-size: 17px; color: var(--m13-ink); }
.m13-foot-verify { font-size: 11.5px; color: var(--m13-ok); }
.m13-foot-about p { color: var(--m13-ink-3); font-size: 13px; line-height: 1.7; margin: 0 0 8px; }
.m13-foot-addr { color: var(--m13-ink-3); font-size: 12.5px; }
.m13-foot-hotline .m13-foot-hint { font-size: 12px; color: var(--m13-ink-3); margin: 0 0 8px; }
.m13-foot-tel { display: block; font-family: var(--m13-display); font-size: 24px; font-weight: 700; color: var(--m13-accent); margin-bottom: 8px; }
.m13-foot-hotline p { color: var(--m13-ink-3); font-size: 12.5px; margin: 2px 0; }
.m13-foot-bottom {
    border-top: 1px solid var(--m13-line);
    padding: 18px 0;
    display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
    font-size: 12.5px; color: var(--m13-ink-3);
}
.m13-foot-bottom a { color: var(--m13-ink-2); }
.m13-foot-bottom a:hover { color: var(--m13-accent); }

/* ──────────────────────────────────────────────
   RESPONSIVE
   ────────────────────────────────────────────── */
@media (max-width: 1100px) {
    .m13-grid, .m13-grid-5 { grid-template-columns: repeat(3, 1fr); }
    .m13-prod-grid { grid-template-columns: 380px 1fr; gap: 28px; }
    .m13-foot-grid { grid-template-columns: 1fr 1fr; gap: 26px; }
}
@media (max-width: 900px) {
    .m13-hero-grid { grid-template-columns: 1fr; gap: 30px; }
    .m13-hero-img img { height: 280px; }
    .m13-about-grid { grid-template-columns: 1fr; gap: 24px; }
    .m13-layout { grid-template-columns: 1fr; }
    .m13-prod-grid { grid-template-columns: 1fr; }
    .m13-prod-img img { aspect-ratio: 4/3; }
    .m13-contact-grid { grid-template-columns: 1fr; }
    .m13-top-grid { grid-template-columns: repeat(2, 1fr); }
    .m13-trust-row { grid-template-columns: repeat(2, 1fr); }
    .m13-mast-cta { display: none; }
}
@media (max-width: 680px) {
    .m13-shell { padding: 0 16px; }
    .m13-section { padding: 36px 0; }
    .m13-grid, .m13-grid-5 { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .m13-hero-title { font-size: 32px; }
    .m13-hero-stats { grid-template-columns: repeat(2, 1fr); }
    .m13-section-h { flex-direction: column; align-items: flex-start; gap: 8px; }
    .m13-mast-top-row { font-size: 11px; }
    .m13-mast-links { display: none; }
    .m13-nav-inner { overflow-x: auto; flex-wrap: nowrap; }
    .m13-nav-inner a { padding: 13px 16px; white-space: nowrap; }
    .m13-cta-strip-row { flex-direction: column; align-items: flex-start; }
    .m13-cta-strip .phone-block { text-align: left; align-items: flex-start; }
    .m13-info-grid { grid-template-columns: repeat(2, 1fr); }
    .m13-map-grid { grid-template-columns: 1fr; }
    .m13-foot-grid { grid-template-columns: 1fr; }
    .m13-foot-bottom { flex-direction: column; }
    .m13-news-item { gap: 14px; padding: 14px 16px; }
    .m13-news-date { flex: 0 0 56px; padding-right: 12px; }
    .m13-news-date .day { font-size: 24px; }
    .m13-prod-price { font-size: 28px; }
}
@media (max-width: 460px) {
    .m13-top-grid { grid-template-columns: 1fr; }
    .m13-brand-text .h1 { font-size: 19px; }
    .m13-contact-qr { flex-direction: column; align-items: flex-start; }
}

/* === nav-fill 铺满 === */
.m13-nav-inner{display:flex;width:100%;flex-wrap:nowrap}
.m13-nav-inner>a{flex:1 1 0;min-width:0;text-align:center;justify-content:center;white-space:nowrap}