:root {
    --hg-color-brand: #008cff;
    --hg-color-brand-strong: #006fd6;
    --hg-color-ink: #111827;
    --hg-color-body: #424245;
    --hg-color-muted: #667085;
    --hg-color-surface-soft: #f1f5f9;
    --hg-color-surface: #f6f9fc;
    --hg-color-dark: #081426;
    --hg-color-white: #ffffff;
    --hg-color-line: rgba(17, 24, 39, 0.12);
    --hg-color-success: #10b981;
    --hg-color-danger: #ef4444;
    --hg-color-warning: #f59e0b;
    --hg-color-cyan: #06b6d4;
    --hg-color-violet: #7c3aed;
    --hg-color-on-dark: rgba(255, 255, 255, 0.76);
    --hg-color-on-dark-muted: rgba(255, 255, 255, 0.62);
    --hg-font-xs: 12px;
    --hg-font-sm: 14px;
    --hg-font-md: 16px;
    --hg-font-lg: 18px;
    --hg-font-lg-2: 20px;
    --hg-font-xl: 24px;
    --hg-font-xl-2: 28px;
    --hg-font-2xl: 32px;
    --hg-font-3xl: 40px;
    --hg-font-4xl: 48px;
    --hg-font-5xl: 56px;
    --hg-font-6xl: 64px;
    --hg-font-7xl: 72px;
    --hg-font-8xl: 88px;
    --hg-font-fluid-body: clamp(16px, 2vw, 20px);
    --hg-font-fluid-title: clamp(24px, 3vw, 40px);
    --hg-font-fluid-heading: clamp(32px, 5vw, 64px);
    --hg-font-fluid-display: clamp(48px, 8vw, 112px);
    --hg-line-solid: 1;
    --hg-line-compact: 1.1;
    --hg-line-tight: 1.2;
    --hg-line-snug: 1.3;
    --hg-line-normal: 1.4;
    --hg-line-copy-tight: 1.5;
    --hg-line-copy: 1.6;
    --hg-line-loose: 1.8;
    --hg-line-double: 2;
    --hg-leading-16: 16px;
    --hg-leading-20: 20px;
    --hg-leading-24: 24px;
    --hg-leading-28: 28px;
    --hg-leading-32: 32px;
    --hg-leading-40: 40px;
    --hg-leading-48: 48px;
    --hg-leading-56: 56px;
    --hg-leading-64: 64px;
    --hg-leading-72: 72px;
    --hg-leading-88: 88px;
    --hg-space-0-5: 2px;
    --hg-space-1: 4px;
    --hg-space-2: 8px;
    --hg-space-3: 12px;
    --hg-space-4: 16px;
    --hg-space-5: 20px;
    --hg-space-6: 24px;
    --hg-space-8: 32px;
    --hg-space-10: 40px;
    --hg-space-12: 48px;
    --hg-space-14: 56px;
    --hg-space-16: 64px;
    --hg-space-18: 72px;
    --hg-space-20: 80px;
    --hg-space-24: 96px;
    --hg-space-28: 112px;
    --hg-space-32: 128px;
    --hg-space-36: 144px;
    --hg-target-min: 44px;
    --hg-z-base: 0;
    --hg-z-raised: 10;
    --hg-z-floating: 20;
    --hg-z-sticky: 100;
    --hg-z-overlay: 1000;
    --hg-z-modal: 1100;
}

.hg-v0910 main :where(h1, h2, h3, h4, p, li, blockquote, figcaption) {
    overflow-wrap: anywhere;
}

.hg-v0910 main :where(section, article, header, div, figure),
.hg-v0910 .hg-header :where(nav, div),
.hg-v0910 .hg-footer :where(div) {
    min-width: 0;
}

.hg-v0910 :where(button, input, select, textarea, summary) {
    min-height: var(--hg-target-min);
}

/* Keep circular controls square when the shared touch-target minimum applies. */
.hg-v0910 :is(.hero-arrow, .hero-play-btn, .scroll-top, .company-arrow, .milestone-arrow, .wheel-detail-open, .wheel-detail-close, .wheel-benefit-controls button, .ai-gallery-controls button, .hitch-controls > button, .hitch-gallery-controls button, .practice-controls button) {
    min-width: var(--hg-target-min);
    min-height: var(--hg-target-min);
    padding: 0;
    box-sizing: border-box;
    flex-shrink: 0;
    display: grid;
    place-items: center;
    line-height: 1;
}
.hg-v0910 :is(.hero-arrow, .hero-play-btn, .scroll-top, .company-arrow, .milestone-arrow, .wheel-detail-close, .wheel-benefit-controls button, .ai-gallery-controls button, .hitch-controls > button, .hitch-gallery-controls button, .practice-controls button) :is(svg, i, span) {
    display: block;
    margin: 0;
    line-height: 1;
}
.hg-v0910 .wheel-detail-open { font-size: 0; }
.hg-v0910 .wheel-detail-open::before,
.hg-v0910 .wheel-detail-open::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    width: 16px;
    height: 2px;
    background: currentColor;
    transform: translate(-50%, -50%);
}
.hg-v0910 .wheel-detail-open::after { transform: translate(-50%, -50%) rotate(90deg); }

.hg-v0910 :where(.hero-arrow, .company-arrow, .milestone-arrow, .award-tab, .company-tab, .article-back, .article-source a) {
    min-width: var(--hg-target-min);
    min-height: var(--hg-target-min);
}

.hg-v0910 :where(.news-link, .article-source a),
.hg-v0910.hg-page-contact main a[href^="tel:"],
.hg-v0910.hg-page-contact main a[href^="mailto:"] {
    display: inline-flex;
    align-items: center;
    min-height: var(--hg-target-min);
}

@media (min-width: 769px) and (max-width: 1120px) {
    .hg-page-about .about-hero-media {
        width: 100% !important;
        height: 100% !important;
        max-width: 100%;
        object-fit: cover;
        border-radius: 0;
    }

    .hg-page-about .about-hero-copy {
        left: clamp(24px, 6vw, 64px);
        max-width: calc(100% - 48px);
    }

    .hg-page-about .company-section,
    .hg-page-about .principles-section,
    .hg-page-about .history-section,
    .hg-page-about .milestone-shell,
    .hg-page-about .leader-grid,
    .hg-page-about .awards-section {
        width: calc(100% - 48px);
        height: auto;
        min-height: 0;
        margin-right: auto;
        margin-left: auto;
    }

    .hg-page-about .company-section {
        padding: var(--hg-space-18) 0;
    }

    .hg-page-about .company-carousel {
        height: min(64vw, 520px);
        min-height: 420px;
    }

    .hg-page-about .principles-section {
        padding: var(--hg-space-18) 0;
    }

    .hg-page-about .principles-head {
        width: 100%;
        height: auto;
        padding-top: 0;
    }

    .hg-page-about .principles-showcase {
        width: 100%;
        height: auto;
        margin-top: var(--hg-space-12);
        grid-template-columns: minmax(0, 1fr);
        gap: var(--hg-space-8);
    }

    .hg-page-about .principle-list,
    .hg-page-about .principle-visuals {
        width: 100%;
        height: auto;
        min-height: 0;
    }

    .hg-page-about .principle-visuals {
        aspect-ratio: 16 / 10;
        border-radius: var(--hg-space-8);
    }

    .hg-page-about .principle-visual img {
        position: static;
        width: 100%;
        height: 100%;
        max-width: 100%;
        object-fit: contain;
    }

    .hg-page-about .history-section {
        margin: 0 auto;
        padding: var(--hg-space-18) 0;
    }

    .hg-page-about .milestone-shell {
        margin: 0 auto;
    }

    .hg-page-about .leader-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        grid-template-rows: none;
        gap: var(--hg-space-8) var(--hg-space-6);
        padding: var(--hg-space-12) 0;
    }

    .hg-page-about .leader-portrait {
        height: auto;
        aspect-ratio: 1;
    }
}

@media (min-width: 769px) and (max-width: 900px) {
    .hg-page-about .leader-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* === 2026-09-16 全站移动端点击高亮块清除（整块删除即可回退） ===
   现象：移动端点击 header logo、汉堡菜单、导航链接、页内任意 a/button 时，
   系统会画一块半透明灰/蓝色矩形（iOS Safari 与 Android Chrome 的原生 tap highlight）。
   此前只在 .news-card / .biz-card 上单点关掉，所以其余同类写法仍有。
   -webkit-tap-highlight-color 是可继承属性，挂在 html 上即全站生效，
   不影响 :hover / :active / :focus-visible 等我们自己定义的反馈样式。 */
html {
    -webkit-tap-highlight-color: transparent;
}