/* ===================== 基础变量 ===================== */
:root {
    --primary: #1a3a6c;
    --primary-dark: #0f2547;
    --primary-light: #2c5a9e;
    --accent: #ff6b35;
    --accent-2: #00c896;
    --bg: #ffffff;
    --bg-gray: #f5f7fa;
    --text: #1f2d3d;
    --text-light: #5a6a7e;
    --border: #e4e9f0;
    --shadow-sm: 0 2px 8px rgba(26, 58, 108, 0.06);
    --shadow-md: 0 8px 30px rgba(26, 58, 108, 0.1);
    --shadow-lg: 0 20px 60px rgba(26, 58, 108, 0.15);
    --radius: 14px;
    --radius-sm: 8px;
    --container: 1200px;
    --gradient: linear-gradient(135deg, #1a3a6c 0%, #2c5a9e 50%, #1a3a6c 100%);
    --gradient-accent: linear-gradient(135deg, #ff6b35 0%, #ff9558 100%);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.7;
    overflow-x: hidden;
}

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

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

/* ===================== 按钮 ===================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px 26px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    white-space: nowrap;
}
.btn-lg { padding: 15px 34px; font-size: 16px; }
.btn-primary {
    background: var(--gradient-accent);
    color: #fff;
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.35);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(255, 107, 53, 0.5);
}
.btn-outline {
    background: transparent;
    color: #fff;
    border: 1.5px solid rgba(255, 255, 255, 0.5);
}
.btn-outline:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: #fff;
}

/* ===================== 顶部导航 ===================== */
.header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 18px 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease;
}
.header.scrolled {
    padding: 12px 0;
    box-shadow: var(--shadow-sm);
    border-bottom-color: var(--border);
}
.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}
.logo-img {
    height: 42px;
    width: auto;
    display: block;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.3; }
.logo-text small { font-size: 12px; color: var(--text-light); }

.nav {
    display: flex;
    gap: 30px;
    margin-left: auto;
    margin-right: 20px;
}
.nav-link {
    font-size: 15px;
    color: var(--text);
    font-weight: 500;
    position: relative;
    padding: 4px 0;
    transition: color 0.25s;
}
.nav-link::after {
    content: "";
    position: absolute;
    left: 0; bottom: -4px;
    width: 0; height: 2px;
    background: var(--accent);
    transition: width 0.3s;
}
.nav-link:hover { color: var(--accent); }
.nav-link:hover::after { width: 100%; }
.nav-link.active { color: var(--accent); }
.nav-link.active::after { width: 100%; }

.btn-enter { padding: 9px 20px; font-size: 14px; }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}
.nav-toggle span {
    width: 24px; height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all 0.3s;
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===================== Hero ===================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 60px;
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    inset: 0;
    background: var(--gradient);
    z-index: -2;
}
.hero-bg::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 30%, rgba(255, 107, 53, 0.18), transparent 45%),
        radial-gradient(circle at 80% 70%, rgba(0, 200, 150, 0.15), transparent 45%);
}
.hero-bg::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(circle at center, #000 30%, transparent 75%);
}
.hero-content {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}
.hero-text { color: #fff; }
.hero-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 30px;
    font-size: 13px;
    margin-bottom: 24px;
    backdrop-filter: blur(6px);
}
.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: 1px;
}
.gradient-text {
    background: linear-gradient(135deg, #ff9558, #ffd166);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-subtitle {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 36px;
    max-width: 540px;
}
.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 56px;
    flex-wrap: wrap;
}
.hero-stats {
    display: flex;
    gap: 48px;
}
.stat-item { display: flex; flex-direction: column; }
.stat-item strong {
    font-size: 32px;
    font-weight: 800;
    color: #ffd166;
    line-height: 1;
}
.stat-item span {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.75);
    margin-top: 6px;
}

/* Hero 可视化 */
.hero-visual { display: flex; justify-content: center; }
.visual-card {
    position: relative;
    width: 380px;
    height: 380px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.visual-ring {
    position: absolute;
    width: 100%; height: 100%;
    border: 2px dashed rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    animation: spin 30s linear infinite;
}
.visual-ring.ring-2 {
    width: 70%; height: 70%;
    border-style: solid;
    border-color: rgba(255, 209, 102, 0.3);
    animation: spin 20s linear infinite reverse;
}
.visual-core {
    width: 140px; height: 140px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-align: center;
    box-shadow: 0 0 60px rgba(255, 209, 102, 0.3);
}
.visual-core .shield { font-size: 44px; }
.visual-core p { font-size: 13px; margin-top: 6px; }
.visual-dot {
    position: absolute;
    width: 50px; height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    animation: float 4s ease-in-out infinite;
}
.dot-1 { top: 5%; left: 50%; transform: translateX(-50%); animation-delay: 0s; }
.dot-2 { right: 5%; top: 50%; transform: translateY(-50%); animation-delay: 1s; }
.dot-3 { bottom: 5%; left: 50%; transform: translateX(-50%); animation-delay: 2s; }
.dot-4 { left: 5%; top: 50%; transform: translateY(-50%); animation-delay: 3s; }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes float {
    0%, 100% { translate: 0 0; }
    50% { translate: 0 -10px; }
}

/* ===================== 通用 Section ===================== */
.section { padding: 100px 0; }
.section-gray { background: var(--bg-gray); }
.section-head {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}
.section-tag {
    display: inline-block;
    font-size: 13px;
    letter-spacing: 3px;
    color: var(--accent);
    font-weight: 700;
    margin-bottom: 12px;
}
.section-title {
    font-size: 38px;
    font-weight: 800;
    color: var(--primary-dark);
    margin-bottom: 14px;
}
.section-desc {
    font-size: 16px;
    color: var(--text-light);
}

/* ===================== 产品介绍 ===================== */
.product-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.product-text h3 {
    font-size: 26px;
    color: var(--primary-dark);
    margin-bottom: 18px;
}
.product-text > p {
    color: var(--text-light);
    margin-bottom: 28px;
}
.product-list { display: flex; flex-direction: column; gap: 22px; }
.product-list li {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}
.product-list .check {
    flex-shrink: 0;
    width: 28px; height: 28px;
    border-radius: 50%;
    background: var(--accent-2);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    margin-top: 2px;
}
.product-list strong { font-size: 17px; color: var(--primary-dark); display: block; margin-bottom: 4px; }
.product-list p { color: var(--text-light); font-size: 14px; }

.product-visual { display: flex; justify-content: center; }
.product-card {
    width: 100%;
    max-width: 380px;
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}
.card-head {
    background: var(--gradient);
    padding: 14px 18px;
    display: flex;
    gap: 8px;
}
.card-dot {
    width: 12px; height: 12px;
    border-radius: 50%;
}
.card-dot.red { background: #ff5f57; }
.card-dot.yellow { background: #febc2e; }
.card-dot.green { background: #28c840; }
.card-body { padding: 26px 24px; }
.card-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
    font-size: 15px;
    color: var(--text-light);
}
.card-row strong { color: var(--primary-dark); font-size: 17px; }
.card-row strong.warn { color: var(--accent); }
.card-bar { margin-top: 18px; }
.bar-label {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 8px;
}
.bar-label span:last-child { font-weight: 700; color: var(--primary-dark); }
.bar-track {
    height: 8px;
    background: var(--border);
    border-radius: 4px;
    overflow: hidden;
}
.bar-fill {
    height: 100%;
    background: var(--gradient-accent);
    border-radius: 4px;
    transition: width 1.2s ease;
}
.bar-fill.green { background: linear-gradient(135deg, #00c896, #00e0a8); }

/* ===================== 核心功能 ===================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.feature-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 32px 26px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: all 0.35s ease;
    position: relative;
    overflow: hidden;
}
.feature-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s ease;
}
.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon {
    width: 60px; height: 60px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(26,58,108,0.08), rgba(255,107,53,0.08));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    margin-bottom: 20px;
    transition: transform 0.35s;
}
.feature-card:hover .feature-icon { transform: scale(1.1) rotate(-6deg); }
.feature-card h3 {
    font-size: 18px;
    color: var(--primary-dark);
    margin-bottom: 10px;
}
.feature-card p {
    font-size: 14px;
    color: var(--text-light);
}

/* ===================== 应用场景 ===================== */
.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.scenario-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 36px 28px;
    box-shadow: var(--shadow-sm);
    border-top: 4px solid var(--primary);
    transition: all 0.35s ease;
    position: relative;
}
.scenario-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-top-color: var(--accent);
}
.scenario-num {
    font-size: 42px;
    font-weight: 800;
    color: var(--border);
    line-height: 1;
    margin-bottom: 16px;
    transition: color 0.35s;
}
.scenario-card:hover .scenario-num { color: var(--accent); }
.scenario-card h3 {
    font-size: 19px;
    color: var(--primary-dark);
    margin-bottom: 10px;
}
.scenario-card p {
    font-size: 14px;
    color: var(--text-light);
}

/* ===================== 系统入口 ===================== */
.portals {
    background: linear-gradient(180deg, #fff 0%, var(--bg-gray) 100%);
}
.portals-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.portal-card {
    display: flex;
    flex-direction: column;
    background: #fff;
    border-radius: var(--radius);
    padding: 32px 26px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    border-top: 4px solid var(--primary);
    transition: all 0.35s ease;
    position: relative;
    overflow: hidden;
}
.portal-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 100%;
    background: var(--gradient);
    opacity: 0;
    transition: opacity 0.35s ease;
    z-index: 0;
}
.portal-card > * { position: relative; z-index: 1; }
.portal-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}
.portal-card:hover::before { opacity: 1; }
.portal-card:hover .portal-icon { background: rgba(255,255,255,0.18); }
.portal-card:hover h3,
.portal-card:hover p { color: #fff; }
.portal-card:hover .portal-btn { background: #fff; color: var(--primary-dark); }

.portal-1 { border-top-color: #2c5a9e; }
.portal-2 { border-top-color: #ff6b35; }
.portal-3 { border-top-color: #00c896; }
.portal-4 { border-top-color: #8e44ad; }

.portal-icon {
    width: 64px; height: 64px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(26,58,108,0.08), rgba(255,107,53,0.08));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    margin-bottom: 22px;
    transition: background 0.35s, transform 0.35s;
}
.portal-card:hover .portal-icon { transform: scale(1.08); }
.portal-body { flex: 1; }
.portal-body h3 {
    font-size: 19px;
    color: var(--primary-dark);
    margin-bottom: 10px;
    transition: color 0.35s;
}
.portal-body p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.75;
    margin-bottom: 22px;
    transition: color 0.35s;
}
.portal-btn {
    display: inline-block;
    padding: 10px 22px;
    border-radius: var(--radius-sm);
    background: var(--gradient-accent);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.35s;
    align-self: flex-start;
}

/* 联系区 CTA 链接 */
.cta-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px 18px;
    margin-bottom: 26px;
    position: relative;
}
.cta-links a {
    color: rgba(255,255,255,0.92);
    font-size: 14px;
    font-weight: 500;
    padding: 10px 14px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.18);
    border-radius: var(--radius-sm);
    transition: all 0.3s;
    text-align: center;
}
.cta-links a:hover {
    background: var(--accent);
    border-color: var(--accent);
    transform: translateY(-2px);
}
.cta-more {
    color: #fff;
    border-color: rgba(255,255,255,0.5);
    position: relative;
}
.cta-more:hover {
    background: rgba(255,255,255,0.12);
    border-color: #fff;
}

/* ===================== 关于我们 ===================== */
.about-wrap {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}
.about-text h3 {
    font-size: 26px;
    color: var(--primary-dark);
    margin-bottom: 18px;
}
.about-text > p {
    color: var(--text-light);
    margin-bottom: 32px;
}
.about-values {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.value-item {
    padding: 20px;
    background: #fff;
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--accent);
    box-shadow: var(--shadow-sm);
}
.value-item strong {
    display: block;
    font-size: 14px;
    color: var(--accent);
    margin-bottom: 8px;
    letter-spacing: 1px;
}
.value-item p { font-size: 14px; color: var(--primary-dark); font-weight: 600; }

.about-visual { display: flex; justify-content: center; }
.about-badge {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}
.badge-item {
    width: 160px; height: 160px;
    border-radius: var(--radius);
    background: var(--gradient);
    color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: transform 0.35s;
}
.badge-item:nth-child(2) { background: var(--gradient-accent); }
.badge-item:nth-child(3) { background: linear-gradient(135deg, #00c896, #00a37a); }
.badge-item:nth-child(4) { background: linear-gradient(135deg, #2c5a9e, #1a3a6c); }
.badge-item:hover { transform: translateY(-6px); }
.badge-item strong { font-size: 30px; font-weight: 800; line-height: 1; }
.badge-item span { font-size: 13px; opacity: 0.9; margin-top: 8px; }

/* ===================== 联系我们 ===================== */
.contact-wrap {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: stretch;
}
.contact-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}
.contact-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 26px 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 18px;
    transition: all 0.3s;
}
.contact-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.contact-icon {
    width: 50px; height: 50px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(26,58,108,0.08), rgba(255,107,53,0.08));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}
.contact-card small { display: block; font-size: 13px; color: var(--text-light); }
.contact-card strong { font-size: 16px; color: var(--primary-dark); }

.contact-cta {
    background: var(--gradient);
    border-radius: var(--radius);
    padding: 40px 36px;
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.contact-cta::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 80% 20%, rgba(255, 107, 53, 0.25), transparent 50%);
}
.contact-cta h3 { font-size: 24px; margin-bottom: 12px; position: relative; }
.contact-cta p { color: rgba(255,255,255,0.85); margin-bottom: 24px; position: relative; }
.contact-cta .btn { position: relative; align-self: center; }

/* ===================== 页脚 ===================== */
.footer {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.7);
    padding-top: 60px;
}
.footer-wrap {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 50px;
    padding-bottom: 40px;
}
.footer-brand .logo-img {
    height: 38px;
    background: #fff;
    padding: 4px 10px;
    border-radius: 6px;
}
.footer-brand .logo-text small { color: rgba(255,255,255,0.6); font-size: 12px; }
.footer-desc {
    margin-top: 18px;
    font-size: 14px;
    max-width: 380px;
    line-height: 1.8;
}
.footer-cols {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.footer-col h4 {
    color: #fff;
    font-size: 15px;
    margin-bottom: 18px;
}
.footer-col a {
    display: block;
    font-size: 14px;
    margin-bottom: 12px;
    transition: color 0.25s;
}
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 22px 0;
    text-align: center;
}
.footer-bottom p { font-size: 13px; }

/* ===================== 返回顶部 ===================== */
.back-top {
    position: fixed;
    right: 28px; bottom: 28px;
    width: 48px; height: 48px;
    border-radius: 50%;
    background: var(--gradient-accent);
    color: #fff;
    border: none;
    font-size: 22px;
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.35s;
    z-index: 999;
}
.back-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.back-top:hover { transform: translateY(-4px); }

/* ===================== 滚动入场动画 ===================== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===================== 响应式 ===================== */
@media (max-width: 992px) {
    .hero-title { font-size: 44px; }
    .features-grid, .scenarios-grid, .portals-grid { grid-template-columns: repeat(2, 1fr); }
    .product-wrap, .about-wrap, .contact-wrap, .footer-wrap {
        grid-template-columns: 1fr;
    }
    .hero-content { grid-template-columns: 1fr; }
    .hero-visual { order: -1; margin-bottom: 20px; }
    .visual-card { width: 300px; height: 300px; }
}

@media (max-width: 768px) {
    .nav, .btn-enter {
        position: fixed;
        top: 0; right: -100%;
        height: 100vh;
        width: 280px;
        background: #fff;
        flex-direction: column;
        justify-content: flex-start;
        padding: 90px 30px 30px;
        gap: 18px;
        transition: right 0.35s ease;
        box-shadow: -10px 0 40px rgba(0,0,0,0.1);
        z-index: 999;
    }
    .btn-enter {
        top: auto; bottom: 30px; right: -100%;
        height: auto; width: 220px;
        margin: 0;
        position: fixed;
    }
    .nav.open, .btn-enter.open { right: 24px; }
    .nav { align-items: flex-start; }
    .nav-link { font-size: 16px; }
    .nav-toggle { display: flex; z-index: 1001; }
    .hero-title { font-size: 34px; }
    .section { padding: 70px 0; }
    .section-title { font-size: 28px; }
    .features-grid, .scenarios-grid, .portals-grid { grid-template-columns: 1fr; }
    .hero-stats { gap: 28px; flex-wrap: wrap; }
    .stat-item strong { font-size: 24px; }
    .about-values { grid-template-columns: 1fr; }
    .contact-cards { grid-template-columns: 1fr; }
    .footer-cols { grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .footer-col a { font-size: 13px; }
    .badge-item { width: 140px; height: 140px; }
    .badge-item strong { font-size: 24px; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 28px; }
    .hero-subtitle { font-size: 15px; }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; }
    .section-title { font-size: 24px; }
    .footer-wrap { grid-template-columns: 1fr; }
    .footer-cols { grid-template-columns: 1fr 1fr; }
    .about-badge { grid-template-columns: 1fr; justify-content: center; }
}