/* ============================================================
   m17 · YC Orange — 风投公司风
   清白底 + YC orange #ff6600 + 超大 Bricolage 96-200 supersize
   单列流式布局 / 黑色细下划线 / 无侧栏 / 720px 收缩文字栏
   ============================================================ */

:root {
    --m17-bg: #ffffff;
    --m17-bg-2: #fafafa;
    --m17-bg-3: #f4f4f4;
    --m17-card: #ffffff;
    --m17-ink: #000000;
    --m17-ink-2: #525252;
    --m17-ink-3: #8a8a8a;
    --m17-line: #e5e5e5;
    --m17-line-strong: #000000;
    --m17-accent: #ff6600;          /* YC Orange */
    --m17-accent-hover: #e65a00;
    --m17-accent-soft: #fff1e6;

    --m17-font-display: 'Bricolage Grotesque', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --m17-font-body: 'Inria Sans', 'PingFang SC', 'Microsoft YaHei', sans-serif;

    --m17-shell: 1240px;
    --m17-prose: 720px;
}

/* ---- Reset ---- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body {
    margin: 0;
    font-family: var(--m17-font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--m17-ink);
    background: var(--m17-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-feature-settings: "kern";
}

img { max-width: 100%; display: block; border: 0; }

a {
    color: var(--m17-ink);
    text-decoration: none;
    border-bottom: 1px solid var(--m17-ink);
    transition: color .15s ease, border-color .15s ease;
}
a:hover { color: var(--m17-accent); border-bottom-color: var(--m17-accent); }

button { font-family: inherit; cursor: pointer; }

h1, h2, h3, h4, h5, h6 {
    font-family: var(--m17-font-display);
    font-weight: 700;
    color: var(--m17-ink);
    margin: 0;
    letter-spacing: -0.02em;
    line-height: 1.05;
}

p { margin: 0 0 1em; }

.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;
}

.m17-shell {
    max-width: var(--m17-shell);
    margin: 0 auto;
    padding: 0 32px;
}

.m17-prose-shell {
    max-width: var(--m17-prose);
    margin: 0 auto;
    padding: 0 32px;
}

/* ============================================================
   HEADER
   ============================================================ */

.m17-trust {
    background: var(--m17-bg);
    border-bottom: 1px solid var(--m17-line);
    font-size: 12px;
    color: var(--m17-ink-2);
}
.m17-trust-row {
    display: flex; justify-content: space-between; align-items: center;
    padding: 10px 0;
    flex-wrap: wrap; gap: 12px;
}
.m17-trust-row .badge {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 2px 8px;
    background: var(--m17-accent);
    color: #fff;
    font-weight: 700;
    border-radius: 2px;
    font-size: 11px;
    letter-spacing: .04em;
}
.m17-trust-row a { border: 0; color: var(--m17-ink-2); margin-left: 16px; }
.m17-trust-row a:hover { color: var(--m17-accent); }

.m17-mast {
    background: var(--m17-bg);
    border-bottom: 1px solid var(--m17-line-strong);
}
.m17-mast-row {
    display: flex; align-items: center; justify-content: space-between;
    padding: 28px 0;
    gap: 32px;
}
.m17-brand {
    display: flex; align-items: center; gap: 14px;
    border: 0;
}
.m17-brand:hover { color: var(--m17-accent); }
.m17-brand img {
    width: 48px; height: 48px;
    object-fit: contain;
    background: var(--m17-bg-2);
    padding: 4px;
    border: 1px solid var(--m17-line);
}
.m17-brand-text strong {
    display: block;
    font-family: var(--m17-font-display);
    font-size: 20px; font-weight: 700;
    color: var(--m17-ink);
    letter-spacing: -0.01em;
}
.m17-brand-text span {
    display: block;
    font-size: 12px; color: var(--m17-ink-3);
    margin-top: 2px;
}

.m17-mast-cta {
    text-align: right;
    border-left: 1px solid var(--m17-line);
    padding-left: 32px;
}
.m17-mast-cta small {
    display: block;
    font-size: 11px; color: var(--m17-ink-3);
    text-transform: uppercase; letter-spacing: .08em;
    margin-bottom: 4px;
}
.m17-mast-cta strong {
    display: block;
    font-family: var(--m17-font-display);
    font-size: 24px; color: var(--m17-accent);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.m17-nav {
    border-bottom: 1px solid var(--m17-line);
    background: var(--m17-bg);
    position: sticky; top: 0; z-index: 50;
}
.m17-nav-inner {
    display: flex; gap: 0;
    padding: 0;
}
.m17-nav-inner a {
    padding: 18px 24px 16px;
    border: 0;
    border-bottom: 2px solid transparent;
    font-size: 14px; font-weight: 500;
    color: var(--m17-ink-2);
    transition: color .15s ease, border-color .15s ease;
}
.m17-nav-inner a:first-child { padding-left: 0; }
.m17-nav-inner a:hover { color: var(--m17-accent); border-bottom-color: var(--m17-accent); }
.m17-nav-inner a.is-active { color: var(--m17-ink); border-bottom-color: var(--m17-accent); font-weight: 700; }

/* ============================================================
   HERO — supersize Bricolage Grotesque
   ============================================================ */

.m17-hero {
    padding: 80px 0 96px;
    border-bottom: 1px solid var(--m17-line);
    background: var(--m17-bg);
}
.m17-hero-eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 13px; color: var(--m17-ink-2);
    margin-bottom: 32px;
    text-transform: uppercase; letter-spacing: .1em;
}
.m17-hero-eyebrow::before {
    content: '';
    width: 28px; height: 2px;
    background: var(--m17-accent);
    display: inline-block;
}
.m17-hero h1.m17-display {
    font-family: var(--m17-font-display);
    font-size: clamp(28px, 3.6vw, 52px);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.025em;
    margin: 0 0 28px;
    max-width: 1100px;
}
.m17-hero h1.m17-display .m17-display-name,
.m17-hero h1.m17-display em,
.m17-hero h1.m17-display .underline {
    display: block;
}
.m17-hero h1.m17-display em {
    font-style: normal;
    color: var(--m17-accent);
}
.m17-hero h1.m17-display .underline {
    border-bottom: 3px solid var(--m17-accent);
    padding-bottom: 3px;
    width: max-content;
    max-width: 100%;
}
.m17-hero-lead {
    max-width: var(--m17-prose);
    font-size: 19px;
    line-height: 1.55;
    color: var(--m17-ink-2);
    margin: 0 0 40px;
}
.m17-hero-actions {
    display: flex; gap: 16px;
    flex-wrap: wrap;
}

.m17-btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 24px;
    font-family: var(--m17-font-body);
    font-size: 15px; font-weight: 700;
    border: 1px solid var(--m17-ink);
    border-bottom: 1px solid var(--m17-ink);
    background: var(--m17-bg);
    color: var(--m17-ink);
    transition: background .15s ease, color .15s ease;
}
.m17-btn:hover { background: var(--m17-ink); color: #fff; }

.m17-btn-primary {
    background: var(--m17-accent);
    color: #fff;
    border-color: var(--m17-accent);
}
.m17-btn-primary:hover {
    background: var(--m17-accent-hover);
    border-color: var(--m17-accent-hover);
    color: #fff;
}

.m17-btn-ghost {
    background: transparent;
    border-color: var(--m17-ink);
}

/* ---- hero stats strip ---- */
.m17-hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    margin-top: 64px;
    padding-top: 32px;
    border-top: 1px solid var(--m17-line);
}
.m17-hero-stats .stat {
    padding-right: 24px;
}
.m17-hero-stats .stat strong {
    display: block;
    font-family: var(--m17-font-display);
    font-size: 40px;
    font-weight: 700;
    color: var(--m17-ink);
    letter-spacing: -0.03em;
    line-height: 1;
}
.m17-hero-stats .stat span {
    display: block;
    font-size: 13px;
    color: var(--m17-ink-3);
    margin-top: 8px;
}

/* ============================================================
   SECTIONS — single column flow
   ============================================================ */

.m17-section {
    padding: 96px 0;
    border-bottom: 1px solid var(--m17-line);
}
.m17-section.is-tight { padding: 64px 0; }
.m17-section.is-soft { background: var(--m17-bg-2); }

.m17-section-h {
    margin-bottom: 56px;
    display: flex; align-items: flex-end; justify-content: space-between;
    gap: 24px; flex-wrap: wrap;
}
.m17-section-h h2 {
    font-family: var(--m17-font-display);
    font-size: clamp(28px, 3.2vw, 44px);
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.1;
    max-width: 720px;
}
.m17-section-h .label {
    display: block;
    font-family: var(--m17-font-body);
    font-size: 12px; font-weight: 700;
    text-transform: uppercase; letter-spacing: .12em;
    color: var(--m17-ink-3);
    margin-bottom: 16px;
}
.m17-section-h .more {
    font-size: 14px; font-weight: 700;
    border-bottom: 1px solid var(--m17-ink);
    padding-bottom: 2px;
}
.m17-section-h .more:hover { color: var(--m17-accent); border-bottom-color: var(--m17-accent); }

/* ---- category quick-pills ---- */
.m17-pills {
    display: flex; flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 48px;
}
.m17-pills a {
    border: 1px solid var(--m17-line);
    padding: 8px 16px;
    font-size: 14px;
    color: var(--m17-ink);
    background: var(--m17-bg);
    border-radius: 0;
    transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.m17-pills a:hover,
.m17-pills a.is-active {
    background: var(--m17-ink);
    color: #fff;
    border-color: var(--m17-ink);
}

/* ============================================================
   FEATURED PRODUCT CARDS (toplist)
   YC-style: clean white, big text, restrained
   ============================================================ */

.m17-top-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    border-top: 1px solid var(--m17-line);
    border-left: 1px solid var(--m17-line);
}
.m17-top-card {
    border-right: 1px solid var(--m17-line);
    border-bottom: 1px solid var(--m17-line);
    background: var(--m17-card);
    padding: 32px;
    display: flex; flex-direction: column; gap: 16px;
    border-bottom-style: solid;
    border-bottom-color: var(--m17-line);
    text-decoration: none;
    color: inherit;
    transition: background .2s ease;
}
.m17-top-card:hover { background: var(--m17-bg-2); border-bottom-color: var(--m17-line); }
.m17-top-card,
.m17-top-card:hover { border-radius: 0; }
.m17-top-card a { border: 0; }

.m17-top-card .thumb {
    aspect-ratio: 4/3;
    background: var(--m17-bg-3);
    overflow: hidden;
    position: relative;
}
.m17-top-card .thumb img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform .4s ease;
}
.m17-top-card:hover .thumb img { transform: scale(1.04); }

.m17-top-card .badge-row {
    display: flex; gap: 6px;
    font-size: 11px;
    text-transform: uppercase; letter-spacing: .06em;
    color: var(--m17-ink-3);
}
.m17-top-card .badge-row .badge-orange {
    color: var(--m17-accent);
    font-weight: 700;
}
.m17-top-card h3 {
    font-family: var(--m17-font-display);
    font-size: 22px;
    font-weight: 700;
    color: var(--m17-ink);
    line-height: 1.2;
    letter-spacing: -0.02em;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    margin: 0;
}
.m17-top-card .meta {
    font-size: 13px; color: var(--m17-ink-2);
    display: flex; gap: 12px; flex-wrap: wrap;
    margin-top: -4px;
}
.m17-top-card .meta span { display: inline-flex; gap: 4px; }
.m17-top-card .meta span small {
    color: var(--m17-ink-3);
    font-size: 12px;
}
.m17-top-card .price-row {
    display: flex; align-items: baseline; justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--m17-line);
    margin-top: auto;
}
.m17-top-card .price {
    font-family: var(--m17-font-display);
    font-size: 24px;
    font-weight: 700;
    color: var(--m17-ink);
    letter-spacing: -0.02em;
}
.m17-top-card .price small {
    font-size: 12px; color: var(--m17-ink-3);
    font-weight: 400;
    margin-left: 2px;
}
.m17-top-card .moq {
    font-size: 12px;
    color: var(--m17-ink-3);
    text-transform: uppercase;
    letter-spacing: .06em;
}
.m17-top-card .ask {
    margin-top: 4px;
    display: inline-flex; align-items: center; gap: 6px;
    padding: 10px 16px;
    background: var(--m17-accent);
    color: #fff;
    font-size: 13px; font-weight: 700;
    border: 0;
    align-self: flex-start;
    transition: background .15s ease;
}
.m17-top-card:hover .ask { background: var(--m17-accent-hover); }

/* ---- secondary denser productlist grid ---- */
.m17-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.m17-card {
    background: var(--m17-card);
    border: 1px solid var(--m17-line);
    padding: 0;
    display: flex; flex-direction: column;
    text-decoration: none;
    transition: border-color .2s ease, transform .2s ease;
    color: inherit;
}
.m17-card:hover {
    border-color: var(--m17-ink);
    transform: translateY(-2px);
}
.m17-card .img {
    aspect-ratio: 1/1;
    background: var(--m17-bg-3);
    overflow: hidden;
}
.m17-card .img img {
    width: 100%; height: 100%; object-fit: cover;
}
.m17-card .body {
    padding: 16px;
    display: flex; flex-direction: column; gap: 6px;
}
.m17-card .name {
    font-size: 14px;
    line-height: 1.45;
    color: var(--m17-ink);
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    min-height: 40px;
    font-weight: 500;
}
.m17-card .row {
    display: flex; justify-content: space-between; align-items: center;
    padding-top: 8px;
    border-top: 1px dashed var(--m17-line);
    margin-top: 4px;
}
.m17-card .row .price {
    font-family: var(--m17-font-display);
    font-size: 16px; font-weight: 700;
    color: var(--m17-accent);
}
.m17-card .row .more-arrow {
    font-size: 11px; color: var(--m17-ink-3);
    text-transform: uppercase; letter-spacing: .06em;
}

/* ============================================================
   ABOUT EXCERPT
   ============================================================ */

.m17-about {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 96px;
    align-items: center;
}
.m17-about .txt h2 {
    font-family: var(--m17-font-display);
    font-size: clamp(28px, 3.4vw, 48px);
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.1;
    margin-bottom: 22px;
}
.m17-about .txt p {
    color: var(--m17-ink-2);
    font-size: 17px;
    line-height: 1.65;
    max-width: 560px;
    margin-bottom: 20px;
}
.m17-about .img {
    aspect-ratio: 4/5;
    background: var(--m17-bg-2);
    overflow: hidden;
    border: 1px solid var(--m17-line);
}
.m17-about .img img { width: 100%; height: 100%; object-fit: cover; }

/* ============================================================
   INQUIRY CTA STRIP — orange band w/ huge phone
   ============================================================ */

.m17-cta {
    background: var(--m17-accent);
    color: #fff;
    padding: 72px 0;
}
.m17-cta-wrap {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 48px;
    align-items: center;
}
.m17-cta h2 {
    font-family: var(--m17-font-display);
    font-size: clamp(26px, 3vw, 40px);
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.02em;
    line-height: 1.15;
    margin-bottom: 14px;
}
.m17-cta p {
    color: rgba(255,255,255,.85);
    font-size: 16px;
    margin: 0;
    max-width: 480px;
}
.m17-cta-phone {
    text-align: right;
}
.m17-cta-phone small {
    display: block;
    font-size: 12px;
    text-transform: uppercase; letter-spacing: .12em;
    opacity: .8;
    margin-bottom: 8px;
}
.m17-cta-phone a {
    font-family: var(--m17-font-display);
    font-size: clamp(40px, 7vw, 88px);
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.04em;
    line-height: 1;
    border-bottom: 4px solid #fff;
    padding-bottom: 4px;
}
.m17-cta-phone a:hover { color: #fff; opacity: .9; border-bottom-color: rgba(255,255,255,.7); }
.m17-cta-actions {
    margin-top: 24px;
    display: flex; gap: 12px;
    justify-content: flex-end;
}
.m17-cta-actions .btn {
    background: #000; color: #fff;
    padding: 14px 24px;
    font-size: 14px; font-weight: 700;
    border: 0;
}
.m17-cta-actions .btn:hover { background: #fff; color: var(--m17-accent); }
.m17-cta-actions .btn-ghost {
    background: transparent;
    border: 1px solid #fff;
    color: #fff;
}
.m17-cta-actions .btn-ghost:hover { background: #fff; color: var(--m17-accent); }

/* ============================================================
   PROSE
   ============================================================ */

.m17-prose {
    max-width: var(--m17-prose);
    margin: 0 auto;
    font-size: 17px;
    line-height: 1.75;
    color: var(--m17-ink-2);
}
.m17-prose p { margin: 0 0 1.4em; }
.m17-prose h2,
.m17-prose h3 {
    font-family: var(--m17-font-display);
    color: var(--m17-ink);
    margin: 2em 0 .6em;
    letter-spacing: -0.02em;
}
.m17-prose h2 { font-size: 36px; }
.m17-prose h3 { font-size: 24px; }
.m17-prose img {
    max-width: 100%;
    margin: 1.4em 0;
    border: 1px solid var(--m17-line);
}
.m17-prose a {
    color: var(--m17-accent);
    border-bottom: 1px solid var(--m17-accent);
}
.m17-prose ul,
.m17-prose ol { margin: 0 0 1.4em; padding-left: 1.5em; }
.m17-prose li { margin-bottom: .4em; }
.m17-prose strong { color: var(--m17-ink); font-weight: 700; }
.m17-prose blockquote {
    border-left: 3px solid var(--m17-accent);
    padding-left: 24px;
    margin: 1.4em 0;
    color: var(--m17-ink);
    font-size: 19px;
}

/* ============================================================
   PRODUCT DETAIL
   ============================================================ */

.m17-crumb {
    padding: 20px 0;
    font-size: 13px;
    color: var(--m17-ink-3);
    border-bottom: 1px solid var(--m17-line);
}
.m17-crumb a { border: 0; color: var(--m17-ink-3); }
.m17-crumb a:hover { color: var(--m17-accent); }
.m17-crumb .sep { margin: 0 8px; opacity: .6; }

.m17-prod {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    margin-bottom: 80px;
}
.m17-prod-img {
    aspect-ratio: 1/1;
    background: var(--m17-bg-2);
    border: 1px solid var(--m17-line);
    overflow: hidden;
}
.m17-prod-img img { width: 100%; height: 100%; object-fit: contain; padding: 24px; }

.m17-prod-info h1 {
    font-family: var(--m17-font-display);
    font-size: clamp(32px, 4vw, 52px);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.05;
    margin-bottom: 24px;
}
.m17-prod-info .sub {
    font-size: 14px;
    color: var(--m17-ink-3);
    margin-bottom: 32px;
    text-transform: uppercase;
    letter-spacing: .06em;
}
.m17-prod-info .price-card {
    background: var(--m17-bg-2);
    border-left: 4px solid var(--m17-accent);
    padding: 24px;
    margin-bottom: 32px;
}
.m17-prod-info .price-card .price {
    font-family: var(--m17-font-display);
    font-size: 48px;
    font-weight: 700;
    color: var(--m17-accent);
    letter-spacing: -0.03em;
    line-height: 1;
}
.m17-prod-info .price-card .price small {
    color: var(--m17-ink-3);
    font-size: 16px;
    font-weight: 400;
    margin-left: 8px;
}
.m17-prod-info .price-card .price-note {
    font-size: 13px;
    color: var(--m17-ink-3);
    margin-top: 8px;
}

.m17-prod-attrs {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 0;
    margin: 0 0 32px;
    border-top: 1px solid var(--m17-line);
}
.m17-prod-attrs dt {
    grid-column: 1;
    padding: 12px 0;
    font-size: 13px;
    color: var(--m17-ink-3);
    border-bottom: 1px solid var(--m17-line);
}
.m17-prod-attrs dd {
    grid-column: 2;
    margin: 0;
    padding: 12px 0;
    font-size: 14px;
    color: var(--m17-ink);
    border-bottom: 1px solid var(--m17-line);
    font-weight: 500;
}

.m17-prod-cta {
    display: flex; gap: 12px;
    flex-wrap: wrap;
}

/* ============================================================
   NEWS
   ============================================================ */

.m17-news-list {
    list-style: none;
    margin: 0; padding: 0;
}
.m17-news-list li {
    border-bottom: 1px solid var(--m17-line);
    padding: 28px 0;
    display: grid;
    grid-template-columns: 100px 1fr auto;
    gap: 32px;
    align-items: center;
}
.m17-news-list li:first-child { border-top: 1px solid var(--m17-ink); }
.m17-news-list .date {
    font-family: var(--m17-font-display);
    font-size: 18px;
    color: var(--m17-ink-3);
    letter-spacing: -0.01em;
    font-weight: 500;
}
.m17-news-list .body h3 {
    font-family: var(--m17-font-display);
    font-size: 22px;
    font-weight: 700;
    color: var(--m17-ink);
    margin-bottom: 6px;
    letter-spacing: -0.015em;
    line-height: 1.25;
}
.m17-news-list .body h3 a { border: 0; }
.m17-news-list .body p {
    color: var(--m17-ink-2);
    font-size: 14px;
    margin: 0;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
.m17-news-list .arrow {
    font-family: var(--m17-font-display);
    font-size: 24px;
    color: var(--m17-ink-3);
    transition: color .2s, transform .2s;
}
.m17-news-list li:hover .arrow {
    color: var(--m17-accent);
    transform: translateX(4px);
}

/* ============================================================
   CONTACT
   ============================================================ */
.m17-contact-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 64px;
}
.m17-contact-info dl {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 0;
    margin: 0;
    border-top: 1px solid var(--m17-ink);
}
.m17-contact-info dt {
    grid-column: 1;
    padding: 16px 0;
    font-size: 13px;
    color: var(--m17-ink-3);
    border-bottom: 1px solid var(--m17-line);
}
.m17-contact-info dd {
    grid-column: 2;
    margin: 0;
    padding: 16px 0;
    font-size: 15px;
    color: var(--m17-ink);
    border-bottom: 1px solid var(--m17-line);
}
.m17-contact-info dd a { border-bottom: 1px solid var(--m17-ink); }
.m17-contact-info dd a:hover { color: var(--m17-accent); border-bottom-color: var(--m17-accent); }

.m17-contact-qr {
    background: var(--m17-bg-2);
    border: 1px solid var(--m17-line);
    padding: 32px;
    text-align: center;
}
.m17-contact-qr img {
    max-width: 220px;
    margin: 0 auto 16px;
}
.m17-contact-qr h4 {
    font-family: var(--m17-font-display);
    font-size: 18px;
    margin: 0 0 8px;
}
.m17-contact-qr p {
    font-size: 13px; color: var(--m17-ink-3); margin: 0;
}

/* ============================================================
   SUPPLY (产品中心)
   ============================================================ */
.m17-supply-head {
    padding: 64px 0;
    border-bottom: 1px solid var(--m17-line);
}
.m17-supply-head h1 {
    font-family: var(--m17-font-display);
    font-size: clamp(48px, 8vw, 112px);
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 0.95;
    margin: 0 0 16px;
}
.m17-supply-head p {
    color: var(--m17-ink-2);
    font-size: 17px;
    max-width: var(--m17-prose);
    margin: 0;
}

.m17-pager {
    margin-top: 64px;
    padding-top: 32px;
    border-top: 1px solid var(--m17-line);
    display: flex; justify-content: center;
}
.m17-pager ul.pagination {
    display: flex; gap: 4px;
    list-style: none;
    padding: 0; margin: 0;
}
.m17-pager .pagination li a,
.m17-pager .pagination li span {
    display: inline-block;
    min-width: 40px;
    padding: 10px 14px;
    text-align: center;
    border: 1px solid var(--m17-line);
    color: var(--m17-ink);
    font-size: 14px;
}
.m17-pager .pagination li.active a,
.m17-pager .pagination li.active span,
.m17-pager .pagination li a:hover {
    background: var(--m17-ink);
    color: #fff;
    border-color: var(--m17-ink);
}

/* ============================================================
   SITEMAP
   ============================================================ */
.m17-sitemap-block {
    padding: 48px 0;
    border-bottom: 1px solid var(--m17-line);
}
.m17-sitemap-block h2 {
    font-family: var(--m17-font-display);
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}
.m17-sitemap-block .grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px 32px;
}
.m17-sitemap-block .grid a {
    border: 0;
    font-size: 14px;
    color: var(--m17-ink-2);
    line-height: 1.5;
    padding: 4px 0;
}
.m17-sitemap-block .grid a:hover { color: var(--m17-accent); }

/* ============================================================
   FOOTER
   ============================================================ */
.m17-footer {
    background: var(--m17-ink);
    color: #b3b3b3;
    padding: 64px 0 24px;
}
.m17-footer .top {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid #2a2a2a;
}
.m17-footer h4 {
    color: #fff;
    font-family: var(--m17-font-display);
    font-size: 14px;
    font-weight: 700;
    margin: 0 0 16px;
    text-transform: uppercase;
    letter-spacing: .08em;
}
.m17-footer .brand-name {
    font-family: var(--m17-font-display);
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.02em;
    margin: 0 0 12px;
    line-height: 1.1;
}
.m17-footer .brand-tag {
    color: #888;
    font-size: 14px;
    line-height: 1.6;
    max-width: 320px;
    margin: 0 0 16px;
}
.m17-footer ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.m17-footer ul a {
    color: #b3b3b3;
    border: 0;
    font-size: 14px;
}
.m17-footer ul a:hover { color: var(--m17-accent); }
.m17-footer .bottom {
    display: flex; justify-content: space-between; align-items: center;
    font-size: 13px;
    color: #666;
    flex-wrap: wrap; gap: 12px;
}
.m17-footer .bottom strong {
    color: var(--m17-accent);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    .m17-shell { padding: 0 24px; }
    .m17-hero { padding: 56px 0 64px; }
    .m17-section { padding: 64px 0; }
    .m17-top-grid { grid-template-columns: repeat(2, 1fr); }
    .m17-grid { grid-template-columns: repeat(3, 1fr); }
    .m17-about { grid-template-columns: 1fr; gap: 40px; }
    .m17-prod { grid-template-columns: 1fr; gap: 32px; }
    .m17-cta-wrap { grid-template-columns: 1fr; gap: 32px; }
    .m17-cta-phone { text-align: left; }
    .m17-cta-actions { justify-content: flex-start; }
    .m17-contact-grid { grid-template-columns: 1fr; gap: 32px; }
    .m17-sitemap-block .grid { grid-template-columns: repeat(2, 1fr); }
    .m17-footer .top { grid-template-columns: 1fr 1fr; gap: 32px; }
    .m17-mast-cta { padding-left: 16px; }
}

@media (max-width: 768px) {
    .m17-shell, .m17-prose-shell { padding: 0 16px; }
    .m17-hero { padding: 40px 0 48px; }
    .m17-hero-stats { grid-template-columns: repeat(2, 1fr); gap: 24px 16px; }
    .m17-section { padding: 48px 0; }
    .m17-section-h { margin-bottom: 32px; }
    .m17-top-grid { grid-template-columns: 1fr; }
    .m17-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .m17-mast-row { flex-wrap: wrap; gap: 16px; padding: 20px 0; }
    .m17-mast-cta { border-left: 0; padding-left: 0; text-align: left; width: 100%; }
    .m17-nav-inner { overflow-x: auto; }
    .m17-nav-inner a { white-space: nowrap; padding: 14px 14px 12px; }
    .m17-nav-inner a:first-child { padding-left: 0; }
    .m17-news-list li { grid-template-columns: 1fr; gap: 8px; }
    .m17-news-list .arrow { display: none; }
    .m17-prod-attrs,
    .m17-contact-info dl { grid-template-columns: 80px 1fr; }
    .m17-sitemap-block .grid { grid-template-columns: 1fr 1fr; }
    .m17-footer .top { grid-template-columns: 1fr; gap: 24px; }
    .m17-trust-row { font-size: 11px; }
    .m17-trust-row a { margin-left: 8px; }
    .m17-cta { padding: 48px 0; }
}