/**
 * GUOWIN Website - Core Styles
 * Version: 1.0.0
 * Description: Centralized CSS for header, footer, typography, and responsive design
 */

/* ============================================
   1. CSS VARIABLES (Design Tokens)
   ============================================ */
:root {
    /* Primary Colors */
    --green-dark: #004B44;
    --green-primary: #1B5E3B;
    --green-light: #2D8A5E;
    --green-accent: #3CA66B;

    /* Neutral Colors */
    --white: #FFFFFF;
    --gray-50: #F8FAF9;
    --gray-100: #F0F4F2;
    --gray-200: #E0E8E4;
    --gray-300: #C0CEC4;
    --gray-500: #6A7A6E;
    --gray-600: #4A5A4E;
    --gray-800: #2C3B30;

    /* Text Colors */
    --text-primary: #1a1a1a;
    --text-secondary: #333333;
    --text-muted: #666666;
    --text-link: #3CA66B;

    /* Font Families */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-secondary: 'Roboto Condensed', Arial Narrow, sans-serif;

    /* Font Scale */
    --text-xs:   0.75rem;   /* 12px — labels, tags */
    --text-sm:   0.875rem;  /* 14px — captions, footnotes */
    --text-base: 1rem;      /* 16px — body */
    --text-lg:   1.125rem;  /* 18px — lead text */
    --text-xl:   1.5rem;    /* 24px — H3 / subheadings */
    --text-2xl:  2rem;      /* 32px — H2 / section titles */
    --text-3xl:  2.5rem;    /* 40px — H1 / page hero */
    --text-4xl:  3rem;      /* 48px — Hero display */

    /* Spacing */
    --container-max: 1280px;
    --header-height: 100px;
}


/* ============================================
   2. BASE STYLES & RESET
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-primary);
    color: var(--text-secondary);
    line-height: 1.6;
    background: var(--white);
    font-size: var(--text-base);
    font-weight: 400;
}

/* ============================================
   TYPOGRAPHY SYSTEM
   Inter (primary) for body / nav / buttons
   Roboto Condensed (secondary) for headings / data / emphasis
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary);
    color: var(--text-primary);
    line-height: 1.2;
    font-weight: 700;
}

h1 { font-size: var(--text-3xl); }  /* 40px */
h2 { font-size: var(--text-2xl); }  /* 32px */
h3 { font-size: var(--text-xl);  }  /* 24px */
h4 { font-size: var(--text-lg);  font-weight: 600; }
h5 { font-size: var(--text-base); font-weight: 600; }
h6 { font-size: var(--text-sm);  font-weight: 600; }

p {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--text-secondary);
}

small, .text-sm {
    font-family: var(--font-primary);
    font-size: var(--text-sm);
    color: var(--text-muted);
}

a {
    color: inherit;
    text-decoration: none;
}

a:hover {
    color: var(--text-link);
}

/* Responsive heading scale — mobile */
@media (max-width: 768px) {
    h1 { font-size: var(--text-2xl); }   /* 32px */
    h2 { font-size: var(--text-xl);  }   /* 24px */
    h3 { font-size: var(--text-lg);  }   /* 18px */
}

@media (max-width: 480px) {
    h1 { font-size: 1.75rem; }           /* 28px */
    h2 { font-size: 1.375rem; }          /* 22px */
    h3 { font-size: var(--text-base); }  /* 16px */
}

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

/* ============================================
   GLOBAL SCROLL ANCHOR OFFSET
   Prevents sticky header from covering anchor targets
   ============================================ */
html { scroll-padding-top: 60px; }
*[id] { scroll-margin-top: 60px; }

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 5rem 0;
}


/* ============================================
   3. HEADER STYLES
   ============================================ */
header {
    background: var(--green-dark);
    position: sticky;
    top: 0;
    z-index: 100;
}

/* Top Row: Logo + Company Values */
.header-top {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0.35rem 2rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: var(--green-dark);
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.logo-area img {
    height: 38px;
    width: auto;
}

.logo-area a {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-divider {
    width: 1px;
    height: 28px;
    background: rgba(255, 255, 255, 0.3);
}

.company-values {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    color: var(--white);
    font-family: var(--font-secondary);
    font-weight: 700;
    font-size: 0.7rem;
    letter-spacing: 0.07em;
    line-height: 1.3;
}

/* Navigation Row */
.header-nav {
    background: linear-gradient(180deg, #f0f0f0 0%, #e8e8e8 100%);
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.1);
}

.header-nav-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    height: 49px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0;
}

.nav-links a {
    padding: 0.7rem 1.2rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-800);
    display: flex;
    align-items: center;
    gap: 0.25rem;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--green-primary);
}

/* Dropdown Menu */
.dropdown {
    position: relative;
}

.dropdown-trigger::after {
    content: '▾';
    font-size: 0.65rem;
    margin-left: 2px;
}

.dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--white);
    border: 1px solid var(--gray-200);
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
    min-width: 220px;
    padding: 0.5rem 0;
}

.dropdown:hover .dropdown-content {
    display: block;
}

.dropdown-content a {
    padding: 0.65rem 1.25rem;
    font-size: 0.875rem;
    color: var(--gray-800);
    display: block;
}

.dropdown-content a:hover {
    background: var(--gray-50);
    color: var(--green-primary);
}

/* Header CTA Button */
.header-cta {
    margin-left: auto;
}

.header-cta .btn-cta {
    background: var(--white);
    color: var(--green-primary);
    padding: 0.5rem 1.25rem;
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: 700;
    border: 1.5px solid var(--green-primary);
    transition: all 0.25s ease;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 2px 8px rgba(27,94,59,0.1);
}

.header-cta .btn-cta:hover {
    background: var(--green-primary);
    color: var(--white);
    transform: translateY(-1px) scale(1.02);
    box-shadow: 0 4px 16px rgba(27,94,59,0.25);
    border-color: var(--green-primary);
}

/* Hamburger Menu Button */
.nav-hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    margin-left: auto;
}

.nav-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--green-dark);
    margin: 5px 0;
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--white);
    padding: 1.5rem 2rem;
    z-index: 99;
    overflow-y: auto;
}

.mobile-menu.open {
    display: block;
}

.mobile-menu a {
    display: block;
    padding: 0.875rem 0;
    font-size: 1rem;
    font-weight: 500;
    color: var(--gray-800);
    border-bottom: 1px solid var(--gray-200);
}

.mobile-menu a:hover {
    color: var(--green-primary);
}

.mobile-cta {
    background: var(--green-accent);
    color: var(--white);
    border-radius: 6px;
    text-align: center;
    margin-top: 0.75rem;
    padding: 0.875rem;
    font-weight: 700;
    font-size: 0.95rem;
}


/* ============================================
   4. FOOTER STYLES
   ============================================ */
footer {
    background: var(--green-dark);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-grid {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr 1fr;
    gap: 2rem;
}

.footer-col-title {
    font-family: var(--font-secondary);
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--white);
    margin-bottom: 1.25rem;
}

.footer-grid > div > ul {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    list-style: none;
}

.footer-grid > div > ul > li > a {
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: rgba(255,255,255,0.7);
    transition: all 0.2s;
}

.footer-grid > div > ul > li > a:hover {
    color: var(--white);
    text-decoration: underline;
}

.footer-company-desc {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.7;
    margin-top: 0.5rem;
}

.footer-bottom {
    max-width: var(--container-max);
    margin: 3rem auto 0;
    padding: 1.5rem 2rem 0;
    border-top: 1px solid rgba(255,255,255,0.15);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.5);
}

.footer-bottom a {
    color: rgba(255,255,255,0.5);
}

.footer-bottom a:hover {
    color: var(--white);
}

.footer-social {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    color: var(--white);
    transition: all 0.2s;
}

.social-link:hover {
    background: var(--green-accent);
    color: var(--white);
}


/* ============================================
   5. TYPOGRAPHY
   ============================================ */
.section-title {
    font-family: var(--font-secondary);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 2rem;
}

.section-title-dark {
    font-family: var(--font-secondary);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--green-dark);
    margin-bottom: 2rem;
}


/* ============================================
   6. NEWS SECTION STYLES
   ============================================ */
.news-section {
    background: var(--green-dark);
    padding: 5rem 0;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.news-card {
    background: rgba(255,255,255,0.08);
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.25s;
    border: 1px solid rgba(255,255,255,0.1);
}

.news-card:hover {
    background: rgba(255,255,255,0.12);
    transform: translateY(-3px);
}

.news-card-img {
    height: 140px;
    background-image: linear-gradient(135deg, var(--green-primary) 0%, var(--green-light) 100%);
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2.5rem;
}

.news-card-body {
    padding: 1.25rem;
}

.news-card-date {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--green-accent);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.news-card-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--white);
    line-height: 1.4;
    margin-bottom: 0.5rem;
}

.news-card-excerpt {
    font-size: 0.825rem;
    color: rgba(255,255,255,0.7);
    line-height: 1.5;
}

.news-card-more {
    display: flex;
    flex-direction: column;
}

.news-card-more:hover {
    transform: translateY(-3px);
}

.news-card-more .news-card-title {
    color: var(--green-accent) !important;
}


/* ============================================
   7. WHAT WE DO SECTION
   ============================================ */
.wwd-section {
    background: var(--gray-100);
}

.wwd-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.wwd-card {
    background: var(--white);
    border-radius: 8px;
    padding: 2rem 1.5rem;
    text-align: center;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
    border: 1px solid var(--gray-200);
    transition: all 0.25s;
    text-decoration: none;
    color: inherit;
    display: block;
}

.wwd-card:hover {
    border-color: var(--green-accent);
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
    transform: translateY(-2px);
}

.wwd-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--green-dark) 0%, var(--green-primary) 100%);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    box-shadow: 0 4px 12px rgba(0,74,68,0.25);
    transition: transform 0.3s ease;
}
.wwd-icon svg {
    width: 28px;
    height: 28px;
    fill: var(--white);
}
.wwd-card:hover .wwd-icon {
    transform: scale(1.1) rotate(4deg);
}

.wwd-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 0.5rem;
}

.wwd-desc {
    font-size: 0.825rem;
    color: var(--gray-500);
    line-height: 1.5;
}

.wwd-card-more {
    background: var(--white);
    border-radius: 8px;
    padding: 2rem 1.5rem;
    text-align: center;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
    transition: all 0.25s;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.wwd-card-more:hover {
    box-shadow: 0 4px 12px rgba(0,74,68,0.1);
}

.wwd-card-more:hover .wwd-icon {
    background: linear-gradient(135deg, var(--green-accent) 0%, var(--green-light) 100%);
    transform: scale(1.1) rotate(4deg);
}

.wwd-card-more .wwd-icon {
    background: linear-gradient(135deg, var(--green-dark) 0%, var(--green-primary) 100%);
    transition: all 0.25s;
}

.wwd-card-more .wwd-title {
    color: var(--green-primary);
}

.wwd-card-more .wwd-desc {
    font-size: 0.775rem;
}

.wwd-products {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 2rem;
}

.wwd-product {
    background: var(--green-dark);
    color: #FFFFFF;
    border-radius: 8px;
    padding: 1.5rem;
    transition: all 0.25s;
}

.wwd-product:hover {
    background: var(--green-primary);
}

.wwd-product-name {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
    color: #FFFFFF;
}

.wwd-product-tag {
    font-size: 0.7rem;
    opacity: 0.85;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #FFFFFF;
}

.wwd-product-more {
    background: #e8f5f0;
    border: 1px dashed #a8d5c2;
    border-radius: 8px;
    padding: 1.5rem;
    transition: all 0.25s;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.wwd-product-more:hover {
    border-style: solid;
    border-color: var(--green-accent);
    background: var(--white);
}

.wwd-product-more .wwd-product-name {
    color: var(--green-primary);
}

.wwd-product-more .wwd-product-tag {
    color: var(--gray-500);
}


/* ============================================
   8. WHO WE ARE SECTION
   ============================================ */
.wwa-section {
    background: var(--white);
}

.wwa-grid {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 3rem;
    align-items: start;
}

.wwa-values-block {
    background: var(--green-dark);
    border-radius: 12px;
    padding: 2.5rem 2rem;
    position: sticky;
    top: 120px;
}

.wwa-values-title {
    font-family: var(--font-secondary);
    font-size: 1rem;
    font-weight: 700;
    color: var(--green-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
}

.wwa-value-item {
    margin-bottom: 1.5rem;
}

.wwa-value-item:last-child {
    margin-bottom: 0;
}

.wwa-value-word {
    font-family: var(--font-secondary);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 0.25rem;
}

.wwa-value-line {
    width: 40px;
    height: 2px;
    background: var(--green-accent);
}

.wwa-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.wwa-item {
    background: var(--white);
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
    border: 1px solid var(--gray-200);
}

.wwa-item-banner {
    display: inline-block;
    background: var(--green-dark);
    color: var(--white);
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0.25rem 0.6rem;
    border-radius: 3px;
    margin-bottom: 0.75rem;
}

.wwa-item-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 0.4rem;
}

.wwa-item-desc {
    font-size: 0.8rem;
    color: var(--gray-500);
    line-height: 1.5;
}


/* ============================================
   9. BRANDS STRIP
   ============================================ */
.brands-strip {
    background: var(--gray-100);
    padding: 3rem 0;
}

.brands-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.brand-name {
    font-family: var(--font-secondary);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--green-dark);
}

.brand-tag {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--gray-500);
    margin-top: 0.25rem;
    text-align: center;
}

.brand-divider {
    width: 1px;
    height: 40px;
    background: var(--gray-300);
}


/* ============================================
   10. HERO STYLES
   ============================================ */
.hero {
    position: relative;
    height: 600px;
    background: var(--green-dark);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-image {
    position: absolute;
    inset: 0;
    background: url('assets/images/general/hero-bg.jpg') center/cover no-repeat;
    opacity: 0.5;
}

.hero-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--green-dark) 0%, rgba(0,75,68,0.7) 100%);
}

.hero-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(13, 59, 36, 0.4);
}

.hero-slogan {
    position: relative;
    z-index: 1;
    font-family: var(--font-secondary);
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--white);
    text-align: center;
    max-width: 900px;
    padding: 0 2rem;
    letter-spacing: 0.02em;
}

/* ============================================
   10. TRUSTED BY SECTION
   ============================================ */
.trusted-section {
    background: var(--white);
    padding: 2.5rem 0;
    border-bottom: 1px solid var(--gray-200);
    text-align: center;
}

.trusted-label {
    font-family: var(--font-primary);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.trusted-logos {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.trusted-logo {
    font-family: var(--font-secondary);
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: 0.02em;
    transition: color 0.2s ease;
}

.trusted-logo:hover {
    color: var(--green-primary);
}

.trusted-logo-divider {
    font-size: var(--text-xs);
    color: var(--gray-400);
}

/* ============================================
   11. BACK TO TOP BUTTON
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    background: var(--green-dark);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 90;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--green-primary);
    transform: translateY(-2px);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
}


/* ============================================
   12. RESPONSIVE BREAKPOINTS
   ============================================ */

/* Tablet: 1024px */
@media (max-width: 1024px) {
    .wwd-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .wwd-products {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr 1fr;
    }

    .footer-grid > div:first-child {
        grid-column: span 3;
    }
}

/* Mobile: 768px */
@media (max-width: 768px) {
    /* Header */
    .header-top {
        padding: 0.75rem 1.5rem;
    }

    .logo-area img {
        height: 40px;
    }

    .company-values {
        font-size: 0.9rem;
    }

    .header-nav-inner {
        padding: 0 1.5rem;
    }

    .nav-links {
        display: none;
    }

    .header-cta {
        display: none;
    }

    .nav-hamburger {
        display: block;
    }

    .mobile-menu {
        top: 88px;
    }

    /* Hero */
    .hero {
        height: 500px;
    }

    .hero-slogan {
        font-size: 2.5rem;
    }

    /* News */
    .news-grid {
        grid-template-columns: 1fr;
    }

    /* What We Do */
    .wwd-grid {
        grid-template-columns: 1fr 1fr;
    }

    .wwd-products {
        grid-template-columns: 1fr;
    }

    /* Who We Are */
    .wwa-grid {
        grid-template-columns: 1fr;
    }

    .wwa-values-block {
        position: static;
        margin-bottom: 2rem;
    }

    .wwa-content {
        grid-template-columns: 1fr;
    }

    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    /* Back to Top */
    .back-to-top {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 44px;
        height: 44px;
    }

    /* Trusted By */
    .trusted-section {
        padding: 2rem 0;
    }
    .trusted-logos {
        gap: 0.3rem;
    }
    .trusted-logo {
        font-size: var(--text-sm);
    }
}

/* Small Mobile: 480px */
@media (max-width: 480px) {
    .header-top {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .hero-slogan {
        font-size: 2rem;
    }

    .wwd-grid {
        grid-template-columns: 1fr;
    }

    .brands-inner {
        gap: 1.5rem;
    }

    .brand-divider {
        display: none;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 0.75rem;
        text-align: center;
    }
}

/* ============================================
   ARROW LINKS — 箭头链接样式（空心三角形）
   ============================================ */
.arrow-link,
.read-more,
.industry-link {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-weight: 600;
    color: var(--green-primary);
    transition: color 0.2s;
    text-decoration: none;
}
.arrow-link:hover,
.read-more:hover,
.industry-link:hover {
    color: var(--green-accent);
}
.arrow-link .arrow-icon,
.read-more .arrow-icon,
.industry-link .arrow-icon {
    font-size: 0.75rem;
    line-height: 1;
    transition: transform 0.2s ease, color 0.2s;
}
.arrow-link:hover .arrow-icon,
.read-more:hover .arrow-icon,
.industry-link:hover .arrow-icon {
    transform: translateX(4px);
}

/* 按钮内的箭头图标（不覆盖按钮自身样式） */
.btn-primary .arrow-icon,
.brand-cta-primary .arrow-icon,
.ind-btn-primary .arrow-icon {
    font-size: 0.75rem;
    line-height: 1;
    transition: transform 0.2s ease;
}
.btn-primary:hover .arrow-icon,
.brand-cta-primary:hover .arrow-icon,
.ind-btn-primary:hover .arrow-icon {
    transform: translateX(4px);
}