/*
Theme Name: KangHe Bio
Theme URI: https://kangbio.com
Author: KangHe Biological Technology
Author URI: https://kangbio.com
Description: 江苏康合生物科技有限公司官方网站主题 — 专业细胞存储与制备企业官网，生命绿设计风格，响应式布局，含首页、关于我们、产品服务、新闻动态、联系表单等完整功能。
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: kanghe-bio
Tags: biotech, corporate, green, responsive, custom-logo, custom-menu, featured-images, translation-ready
*/

/* ===== Reset & Base ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --green: #2BA84A;
    --green-dark: #1A936F;
    --green-light: #88C999;
    --green-pale: #E8F5EC;
    --blue: #3DA5D9;
    --blue-dark: #2A87B8;
    --dark: #1A2E2A;
    --gray: #6B7B76;
    --gray-light: #F5F8F7;
    --white: #FFFFFF;
    --radius: 12px;
    --radius-lg: 20px;
    --shadow: 0 2px 20px rgba(26, 46, 42, 0.08);
    --shadow-hover: 0 8px 40px rgba(26, 46, 42, 0.15);
    --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --container: 1200px;
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: var(--font);
    color: var(--dark);
    background: var(--white);
    line-height: 1.7;
    overflow-x: hidden;
}

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ===== Buttons ===== */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 12px 28px;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    white-space: nowrap;
}
.btn-primary {
    background: linear-gradient(135deg, var(--green), var(--green-dark));
    color: var(--white);
    border-color: transparent;
}
.btn-primary:hover {
    background: linear-gradient(135deg, var(--green-dark), var(--green));
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(43, 168, 74, 0.35);
}
.btn-outline {
    background: transparent;
    color: var(--green-dark);
    border-color: var(--green);
}
.btn-outline:hover {
    background: var(--green);
    color: var(--white);
    transform: translateY(-2px);
}
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.btn-block { width: 100%; }

/* ===== Header ===== */
.header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    transition: var(--transition);
}
.header.scrolled { box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06); }
.header-inner {
    display: flex; align-items: center; justify-content: space-between;
    height: 72px;
}
.logo {
    display: flex; align-items: center; gap: 10px; text-decoration: none;
}
.logo-icon { height: 40px; width: auto; display: block; }
.logo-text {
    font-size: 1.1rem; font-weight: 600; color: var(--dark);
    letter-spacing: 0.5px; line-height: 1.2; white-space: nowrap;
}
.footer-brand .logo-text { color: var(--white); }

/* Header Phone Hover */
.header-phone {
    display: flex; align-items: center; gap: 6px;
    color: var(--green); cursor: pointer;
    position: relative; margin-left: 16px;
    padding: 6px 10px; border-radius: var(--radius);
    transition: var(--transition);
}
.header-phone:hover { background: var(--green-pale); }
.header-phone svg { flex-shrink: 0; }
.header-phone-num {
    font-size: 0.9rem; font-weight: 600;
    opacity: 0; max-width: 0; overflow: hidden;
    white-space: nowrap; transition: all 0.3s ease;
    color: var(--green-dark);
}
.header-phone:hover .header-phone-num {
    opacity: 1; max-width: 160px; margin-left: 4px;
}

.nav { display: flex; gap: 32px; }
.nav-link {
    font-size: 0.95rem; color: var(--dark); font-weight: 500;
    position: relative; padding: 4px 0;
    transition: var(--transition);
}
.nav-link::after {
    content: ''; position: absolute; bottom: -2px; left: 50%;
    width: 0; height: 2px; border-radius: 2px;
    background: linear-gradient(90deg, var(--green), var(--blue));
    transition: var(--transition); transform: translateX(-50%);
}
.nav-link:hover, .nav-link.active { color: var(--green-dark); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

.header-cta { padding: 10px 24px; font-size: 0.9rem; }

.nav-toggle {
    display: none; flex-direction: column; gap: 5px;
    background: none; border: none; cursor: pointer; padding: 8px;
}
.nav-toggle span {
    width: 24px; height: 2px; border-radius: 2px;
    background: var(--dark); transition: var(--transition);
}
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ===== Hero ===== */
.hero {
    position: relative; min-height: 100vh;
    display: flex; align-items: center;
    padding-top: 72px;
    overflow: hidden;
}
.hero-bg {
    position: absolute; inset: 0;
    background:
        radial-gradient(ellipse at 20% 30%, rgba(43, 168, 74, 0.12), transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(61, 165, 217, 0.12), transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(26, 147, 111, 0.06), transparent 70%),
        linear-gradient(160deg, #F0F9F4 0%, #E8F4FD 100%);
}
.hero-bg::before {
    content: ''; position: absolute; inset: 0;
    background-image:
        radial-gradient(circle at 15% 25%, rgba(43, 168, 74, 0.08) 0%, transparent 8%),
        radial-gradient(circle at 85% 15%, rgba(61, 165, 217, 0.08) 0%, transparent 8%),
        radial-gradient(circle at 75% 85%, rgba(43, 168, 74, 0.06) 0%, transparent 6%),
        radial-gradient(circle at 25% 75%, rgba(61, 165, 217, 0.06) 0%, transparent 6%);
}
.hero-content { position: relative; z-index: 2; text-align: center; max-width: 900px; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(43, 168, 74, 0.2);
    border-radius: 50px;
    font-size: 0.85rem; color: var(--green-dark); font-weight: 500;
    margin-bottom: 24px;
}
.pulse-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 0 0 rgba(43, 168, 74, 0.5);
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(43, 168, 74, 0.5); }
    70% { box-shadow: 0 0 0 8px rgba(43, 168, 74, 0); }
    100% { box-shadow: 0 0 0 0 rgba(43, 168, 74, 0); }
}
.hero-title {
    font-size: 3.5rem; font-weight: 800; line-height: 1.2;
    color: var(--dark); margin-bottom: 20px;
    letter-spacing: -0.02em;
}
.gradient-text {
    background: linear-gradient(135deg, var(--green), var(--blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-desc {
    font-size: 1.15rem; color: var(--gray);
    max-width: 680px; margin: 0 auto 36px;
    line-height: 1.8;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; margin-bottom: 64px; }
.hero-stats {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px;
    padding: 32px;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(12px);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.8);
    box-shadow: var(--shadow);
}
.hero-stat { text-align: center; }
.hero-stat-num {
    font-size: 2.2rem; font-weight: 800; color: var(--green-dark);
}
.hero-stat span { font-size: 1.5rem; font-weight: 800; color: var(--green-dark); }
.hero-stat p { font-size: 0.88rem; color: var(--gray); margin-top: 4px; }

.scroll-hint {
    position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%);
    animation: bounce 2s infinite; z-index: 2;
}
@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* ===== Sections ===== */
.section { padding: 96px 0; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-label {
    display: inline-block; font-size: 0.8rem; font-weight: 700;
    letter-spacing: 3px; color: var(--green); margin-bottom: 12px;
    text-transform: uppercase;
}
.section-title {
    font-size: 2.4rem; font-weight: 800; color: var(--dark);
    margin-bottom: 12px;
}
.section-subtitle { font-size: 1.05rem; color: var(--gray); }

/* ===== About ===== */
.about-section { background: var(--gray-light); }
.about-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 64px;
    align-items: start;
}
.about-text h3 {
    font-size: 1.6rem; color: var(--dark); margin-bottom: 16px;
    position: relative; padding-left: 16px;
}
.about-text h3::before {
    content: ''; position: absolute; left: 0; top: 6px;
    width: 4px; height: 24px; border-radius: 2px;
    background: linear-gradient(180deg, var(--green), var(--blue));
}
.about-text p { color: var(--gray); margin-bottom: 16px; font-size: 1.02rem; }
.about-tags { display: flex; flex-wrap: wrap; gap: 10px; margin: 24px 0; }
.tag {
    padding: 6px 16px; border-radius: 50px;
    background: var(--green-pale); color: var(--green-dark);
    font-size: 0.85rem; font-weight: 500;
}
.about-cards {
    display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
}
.about-card {
    padding: 28px 24px; border-radius: var(--radius);
    background: var(--white); box-shadow: var(--shadow);
    transition: var(--transition);
}
.about-card:hover {
    transform: translateY(-4px); box-shadow: var(--shadow-hover);
}
.about-card-icon { width: 44px; height: 44px; margin-bottom: 16px; }
.about-card h4 { font-size: 1.1rem; color: var(--dark); margin-bottom: 8px; }
.about-card p { font-size: 0.9rem; color: var(--gray); }

/* ===== Services ===== */
.services-section { background: var(--white); }
.services-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.service-card {
    padding: 36px 28px; border-radius: var(--radius-lg);
    background: var(--white);
    border: 1px solid rgba(0, 0, 0, 0.04);
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative; overflow: hidden;
}
.service-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
    background: linear-gradient(90deg, var(--green), var(--blue));
    transform: scaleX(0); transform-origin: left;
    transition: var(--transition);
}
.service-card:hover {
    transform: translateY(-6px); box-shadow: var(--shadow-hover);
}
.service-card:hover::before { transform: scaleX(1); }
.service-icon { width: 56px; height: 56px; margin-bottom: 20px; }
.service-card h3 { font-size: 1.2rem; color: var(--dark); margin-bottom: 12px; }
.service-card > p { font-size: 0.9rem; color: var(--gray); margin-bottom: 16px; line-height: 1.7; }
.service-features { margin-bottom: 20px; }
.service-features li {
    padding: 6px 0 6px 24px; font-size: 0.88rem; color: var(--dark);
    position: relative;
}
.service-features li::before {
    content: ''; position: absolute; left: 0; top: 11px;
    width: 14px; height: 14px; border-radius: 50%;
    background: var(--green-pale);
    border: 2px solid var(--green);
}
.service-features li::after {
    content: ''; position: absolute; left: 5px; top: 15px;
    width: 4px; height: 7px;
    border-right: 2px solid var(--green); border-bottom: 2px solid var(--green);
    transform: rotate(45deg);
}
.service-link {
    color: var(--green-dark); font-weight: 600; font-size: 0.9rem;
    transition: var(--transition);
}
.service-link:hover { color: var(--green); padding-left: 4px; }

/* ===== Process ===== */
.process-section {
    background: linear-gradient(160deg, #F0F9F4, #E8F4FD);
}
.process-timeline {
    display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px;
    position: relative;
}
.process-timeline::before {
    content: ''; position: absolute; top: 24px; left: 5%; right: 5%;
    height: 2px;
    background: repeating-linear-gradient(90deg, var(--green-light) 0, var(--green-light) 8px, transparent 8px, transparent 16px);
}
.process-step { text-align: center; position: relative; }
.process-num {
    width: 48px; height: 48px; margin: 0 auto 16px;
    border-radius: 50%;
    background: var(--white);
    border: 2px solid var(--green);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.1rem; font-weight: 800; color: var(--green-dark);
    position: relative; z-index: 2;
    transition: var(--transition);
}
.process-step:hover .process-num {
    background: var(--green); color: var(--white);
    transform: scale(1.1);
}
.process-body h4 { font-size: 0.95rem; color: var(--dark); margin-bottom: 6px; }
.process-body p { font-size: 0.82rem; color: var(--gray); }

/* ===== Advantages ===== */
.advantages-section { background: var(--white); }
.advantages-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}
.advantage-item {
    padding: 36px 32px; border-radius: var(--radius-lg);
    background: var(--gray-light);
    transition: var(--transition);
    position: relative; overflow: hidden;
}
.advantage-item::after {
    content: ''; position: absolute; right: -20px; bottom: -20px;
    width: 80px; height: 80px; border-radius: 50%;
    background: radial-gradient(circle, rgba(43, 168, 74, 0.08), transparent);
    transition: var(--transition);
}
.advantage-item:hover {
    background: var(--white);
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}
.advantage-item:hover::after {
    width: 120px; height: 120px;
}
.adv-icon {
    width: 44px; height: 44px; margin-bottom: 20px;
    color: var(--green-dark);
}
.advantage-item h4 { font-size: 1.15rem; color: var(--dark); margin-bottom: 10px; }
.advantage-item p { font-size: 0.92rem; color: var(--gray); }

/* ===== News ===== */
.news-section { background: var(--gray-light); }
.news-grid {
    display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 24px;
}
.news-card {
    border-radius: var(--radius-lg); overflow: hidden;
    background: var(--white);
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex; flex-direction: column;
}
.news-card:hover {
    transform: translateY(-6px); box-shadow: var(--shadow-hover);
}
.news-img {
    height: 180px; overflow: hidden;
    background: linear-gradient(135deg, var(--green-pale), #E8F4FD);
}
.news-featured .news-img { height: 220px; }
.news-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.news-tag {
    display: inline-block; padding: 4px 12px; border-radius: 4px;
    background: var(--green-pale); color: var(--green-dark);
    font-size: 0.78rem; font-weight: 600; margin-bottom: 12px;
    align-self: flex-start;
}
.news-card h3 {
    font-size: 1.05rem; color: var(--dark); margin-bottom: 10px;
    line-height: 1.5;
}
.news-featured h3 { font-size: 1.25rem; }
.news-card > .news-body > p {
    font-size: 0.88rem; color: var(--gray); margin-bottom: 16px; flex: 1;
    display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-meta {
    display: flex; justify-content: space-between; align-items: center;
    font-size: 0.82rem; color: var(--gray);
}
.news-meta a { color: var(--green-dark); font-weight: 600; }
.news-meta a:hover { color: var(--green); }

/* ===== Contact ===== */
.contact-section { background: var(--white); }
.contact-grid {
    display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px;
    align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-item {
    display: flex; gap: 16px; align-items: flex-start;
    padding: 20px; border-radius: var(--radius);
    background: var(--gray-light);
    transition: var(--transition);
}
.contact-item:hover { background: var(--green-pale); }
.contact-icon {
    width: 44px; height: 44px; flex-shrink: 0;
    border-radius: 10px;
    background: var(--white);
    display: flex; align-items: center; justify-content: center;
    color: var(--green-dark);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}
.contact-icon svg { width: 24px; height: 24px; }
.contact-item h4 { font-size: 1rem; color: var(--dark); margin-bottom: 4px; }
.contact-item p { font-size: 0.9rem; color: var(--gray); }

.contact-form-wrap {
    padding: 40px; border-radius: var(--radius-lg);
    background: linear-gradient(160deg, var(--gray-light), var(--white));
    box-shadow: var(--shadow);
    border: 1px solid rgba(0, 0, 0, 0.04);
}
.contact-form h3 { font-size: 1.4rem; color: var(--dark); margin-bottom: 8px; }
.form-desc { font-size: 0.9rem; color: var(--gray); margin-bottom: 28px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block; font-size: 0.88rem; font-weight: 600;
    color: var(--dark); margin-bottom: 8px;
}
.form-group label span { color: #e74c3c; }
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%; padding: 12px 16px;
    border: 2px solid rgba(0, 0, 0, 0.08);
    border-radius: 8px;
    font-size: 0.95rem; font-family: var(--font);
    background: var(--white);
    transition: var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none; border-color: var(--green);
    box-shadow: 0 0 0 3px rgba(43, 168, 74, 0.1);
}
.form-group textarea { resize: vertical; }
.form-note {
    font-size: 0.8rem; color: var(--gray); margin-top: 12px; text-align: center;
}
.form-success {
    padding: 16px; margin-bottom: 20px; border-radius: 8px;
    background: var(--green-pale); color: var(--green-dark);
    font-size: 0.9rem; text-align: center;
}
.form-error {
    padding: 16px; margin-bottom: 20px; border-radius: 8px;
    background: #FDE8E8; color: #C0392B;
    font-size: 0.9rem; text-align: center;
}

/* ===== Single Post / Page ===== */
.single-hero {
    padding: 140px 0 48px;
    background: linear-gradient(160deg, #F0F9F4, #E8F4FD);
    text-align: center;
}
.single-hero h1 { font-size: 2rem; color: var(--dark); margin-bottom: 12px; }
.single-meta { font-size: 0.85rem; color: var(--gray); }
.single-content {
    padding: 48px 0;
    max-width: 800px; margin: 0 auto;
}
.single-content h2 { font-size: 1.5rem; margin: 32px 0 16px; color: var(--dark); }
.single-content h3 { font-size: 1.2rem; margin: 24px 0 12px; color: var(--dark); }
.single-content p { margin-bottom: 16px; color: var(--gray); font-size: 1rem; line-height: 1.8; }
.single-content img { border-radius: var(--radius); margin: 24px 0; }
.single-content ul, .single-content ol { margin: 16px 0 16px 24px; }
.single-content li { margin-bottom: 8px; color: var(--gray); }

/* ===== Footer ===== */
.footer {
    background: linear-gradient(160deg, #1A2E2A, #0F1E1B);
    color: rgba(255, 255, 255, 0.7);
    padding: 64px 0 24px;
}
.footer-top {
    display: grid; grid-template-columns: 1.2fr 2fr; gap: 64px;
    margin-bottom: 40px;
}
.footer-brand > p { margin-top: 16px; font-size: 0.9rem; line-height: 1.7; }
.footer-links {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px;
}
.footer-col h5 {
    font-size: 0.95rem; color: var(--white); margin-bottom: 16px;
    font-weight: 600;
}
.footer-col a, .footer-col p {
    display: block; font-size: 0.88rem; color: rgba(255, 255, 255, 0.6);
    margin-bottom: 10px; transition: var(--transition);
}
.footer-col a:hover { color: var(--green-light); }

/* Footer QR Code */
.footer-qrcode { text-align: center; }
.qrcode-img {
    width: 120px; height: 120px; border-radius: var(--radius);
    background: var(--white); padding: 6px;
    margin-bottom: 8px; display: inline-block;
}
.qrcode-tip {
    font-size: 0.82rem !important; color: rgba(255,255,255,0.5) !important;
    text-align: center; letter-spacing: 1px;
}
.footer-bottom {
    padding-top: 24px; border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}
.footer-bottom p { font-size: 0.82rem; color: rgba(255, 255, 255, 0.4); }
.footer-bottom a { color: rgba(255, 255, 255, 0.4); }
.footer-bottom a:hover { color: var(--green-light); }

/* ===== Back to top ===== */
.back-top {
    position: fixed; bottom: 32px; right: 32px;
    width: 44px; height: 44px; border-radius: 50%;
    border: none; cursor: pointer; z-index: 999;
    background: var(--green); color: var(--white);
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 4px 20px rgba(43, 168, 74, 0.4);
    opacity: 0; visibility: hidden;
    transition: var(--transition);
}
.back-top.show { opacity: 1; visibility: visible; }
.back-top:hover { background: var(--green-dark); transform: translateY(-4px); }

/* ===== Animations ===== */
.fade-up {
    opacity: 0; transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .news-grid { grid-template-columns: 1fr 1fr; }
    .news-featured { grid-column: span 2; }
    .process-timeline { grid-template-columns: repeat(3, 1fr); gap: 32px; }
    .process-timeline::before { display: none; }
    .advantages-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .nav {
        position: fixed; top: 72px; left: 0; right: 0;
        background: var(--white); flex-direction: column;
        padding: 24px; gap: 16px;
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
        transform: translateY(-150%); transition: var(--transition);
    }
    .nav.show { transform: translateY(0); }
    .nav-toggle { display: flex; }
    .header-cta { display: none; }

    .hero-title { font-size: 2.2rem; }
    .hero-desc { font-size: 1rem; }
    .hero-actions { flex-direction: column; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 20px; padding: 24px; }

    .section { padding: 64px 0; }
    .section-title { font-size: 1.8rem; }

    .about-grid { grid-template-columns: 1fr; gap: 32px; }
    .about-cards { grid-template-columns: 1fr 1fr; }

    .services-grid { grid-template-columns: 1fr; }
    .news-grid { grid-template-columns: 1fr; }
    .news-featured { grid-column: auto; }

    .process-timeline { grid-template-columns: 1fr 1fr; }

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

    .contact-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }

    .footer-top { grid-template-columns: 1fr; gap: 32px; }
    .footer-links { grid-template-columns: 1fr 1fr; }
    .header-phone .header-phone-num { display: none; }

    .back-top { bottom: 20px; right: 20px; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 1.8rem; }
    .hero-stat-num { font-size: 1.6rem; }
    .about-cards { grid-template-columns: 1fr; }
    .process-timeline { grid-template-columns: 1fr; }
    .footer-links { grid-template-columns: 1fr; }
    .contact-form-wrap { padding: 24px; }
}