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

:root {
    --primary: #1a56db;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --accent: #06b6d4;
    --bg-dark: #0f172a;
    --bg-light: #f8fafc;
    --text: #1e293b;
    --text-light: #64748b;
    --text-white: #f1f5f9;
    --card-bg: #ffffff;
    --border: #e2e8f0;
    --radius: 12px;
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
    --shadow-lg: 0 20px 60px -12px rgba(0,0,0,0.15);
    --transition: 0.3s ease;
}

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

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

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    transition: var(--transition);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: 1px;
}

.nav-logo .logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    object-fit: contain;
    display: block;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-links a {
    color: #cbd5e1;
    font-size: 0.95rem;
    transition: color var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width var(--transition);
}

.nav-links a:hover { color: #fff; }
.nav-links a:hover::after { width: 100%; }

/* ===== Nav Dropdown (产品中心) ===== */
.nav-item {
    position: relative;
}

.nav-dropdown-toggle {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.dropdown-arrow {
    font-size: 0.7rem;
    line-height: 1;
    transition: transform var(--transition);
}

.nav-item.open .dropdown-arrow {
    transform: rotate(180deg);
}

/* 收起时 display:none —— 不占位，菜单高度由内容决定（汉堡菜单面板随之伸缩） */
.dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    min-width: 130px;
    padding: 6px;
    background: rgba(15, 23, 42, 0.98);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 10px;
    box-shadow: 0 12px 32px rgba(0,0,0,0.35);
    z-index: 1200;
}

.nav-item.open .dropdown-menu {
    display: block;
    animation: dropdown-fade 0.15s ease;
}

@keyframes dropdown-fade {
    from { opacity: 0; }
    to { opacity: 1; }
}

.dropdown-menu a {
    display: block;
    padding: 9px 14px;
    border-radius: 6px;
    color: #cbd5e1;
    font-size: 0.9rem;
    white-space: nowrap;
    transition: all var(--transition);
}

.dropdown-menu a:hover {
    color: #fff;
    background: rgba(255,255,255,0.08);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-auth {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-login-btn {
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    color: #fff;
    border: none;
    border-radius: 50px;
    padding: 8px 22px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    letter-spacing: 1px;
    transition: all var(--transition);
    font-family: inherit;
    white-space: nowrap;
}

.nav-login-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(6, 182, 212, 0.4);
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-size: 0.9rem;
    font-weight: 600;
}

.nav-user img {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.3);
    object-fit: cover;
}

.nav-user .nickname {
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nav-logout-btn {
    background: transparent;
    border: 1px solid rgba(255,255,255,0.25);
    color: #cbd5e1;
    border-radius: 50px;
    padding: 5px 14px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all var(--transition);
    font-family: inherit;
    white-space: nowrap;
}

.nav-logout-btn:hover {
    background: rgba(255,255,255,0.08);
    color: #fff;
}

/* Mobile nav toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 26px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 40%, #0f172a 100%);
    position: relative;
    overflow: hidden;
    text-align: center;
    padding: 120px 24px 80px;
}

.hero::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.15) 0%, transparent 70%);
    top: -150px;
    right: -200px;
    border-radius: 50%;
    animation: float 8s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.12) 0%, transparent 70%);
    bottom: -100px;
    left: -100px;
    border-radius: 50%;
    animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(30px, -30px) scale(1.05); }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-badge {
    display: inline-block;
    padding: 6px 20px;
    border: 1px solid rgba(6, 182, 212, 0.4);
    border-radius: 50px;
    color: var(--accent);
    font-size: 0.9rem;
    letter-spacing: 2px;
    margin-bottom: 28px;
    backdrop-filter: blur(4px);
    background: rgba(6, 182, 212, 0.08);
}

.hero h1 {
    font-size: clamp(2.2rem, 5vw, 3.6rem);
    font-weight: 800;
    color: #fff;
    line-height: 1.25;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.hero h1 .highlight {
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.5em;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: #94a3b8;
    margin-bottom: 40px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

.hero-motto {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-motto span {
    padding: 8px 22px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 50px;
    color: #e2e8f0;
    font-size: 0.95rem;
    letter-spacing: 2px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 36px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
    letter-spacing: 1px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
    color: #fff;
    box-shadow: 0 8px 24px rgba(26, 86, 219, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(26, 86, 219, 0.5);
}

.btn-outline {
    background: transparent;
    border: 2px solid rgba(255,255,255,0.25);
    color: #fff;
}

.btn-outline:hover {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.5);
}

/* 浅底按钮：用于白底版块/卡片（.btn-outline 是深色背景用的） */
.btn-ghost {
    background: #eff6ff;
    border: 1px solid #dbeafe;
    color: var(--primary);
}

.btn-ghost:hover {
    background: #dbeafe;
    transform: translateY(-2px);
}

/* 小尺寸按钮：用于卡片内 */
.btn-sm {
    padding: 10px 24px;
    font-size: 0.9rem;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
}

/* ===== Section Common ===== */
.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-label {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--primary-light);
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 800;
    color: var(--bg-dark);
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ===== About ===== */
#about {
    background: #fff;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-visual {
    position: relative;
}

.about-card-stack {
    position: relative;
    height: 380px;
}

.about-card {
    position: absolute;
    background: #fff;
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}

.about-card.card-main {
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    background: linear-gradient(135deg, var(--bg-dark), #1e3a5f);
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    z-index: 2;
}

.about-card.card-main .big-number {
    font-size: 4rem;
    font-weight: 800;
    background: linear-gradient(135deg, #60a5fa, #22d3ee);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.about-card.card-main .big-label {
    font-size: 1rem;
    color: #94a3b8;
    margin-top: 8px;
}

.about-card.card-deco {
    top: 50px;
    left: -20px;
    right: 40px;
    bottom: -20px;
    border: 2px dashed var(--accent);
    background: rgba(6, 182, 212, 0.03);
    z-index: 1;
}

.about-text h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--bg-dark);
}

.about-text p {
    color: var(--text-light);
    margin-bottom: 16px;
    line-height: 1.9;
}

.about-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

.highlight-tag {
    padding: 6px 16px;
    background: #eff6ff;
    color: var(--primary);
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid #dbeafe;
}

/* ===== Product Center Intro ===== */
#products {
    background: #fff;
}

.product-center-list {
    display: flex;
    flex-direction: column;
    gap: 110px;
}

.product-center-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

/* 奇偶左右交错：偶数行视觉块靠右 */
.product-center-grid:nth-child(even) .product-center-visual {
    order: 2;
}

.product-center-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 380px;
    padding: 48px;
    background: linear-gradient(135deg, var(--bg-dark), #1e3a5f);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.product-center-visual::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.25) 0%, transparent 70%);
    top: -80px;
    right: -80px;
    border-radius: 50%;
    animation: float 8s ease-in-out infinite;
}

.product-center-visual::after {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.2) 0%, transparent 70%);
    bottom: -60px;
    left: -60px;
    border-radius: 50%;
    animation: float 10s ease-in-out infinite reverse;
}

/* 各产品暂无截图，视觉位用大号图标 + 半透明底 */
.product-center-icon {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 180px;
    height: 180px;
    font-size: 5rem;
    line-height: 1;
    border-radius: 16px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    box-shadow: 0 16px 40px rgba(0,0,0,0.35);
}

.product-center-text h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--bg-dark);
}

.product-center-text p {
    color: var(--text-light);
    margin-bottom: 16px;
    line-height: 1.9;
}

.product-center-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
    margin-bottom: 32px;
}

.product-center-text .btn {
    display: inline-flex;
}

/* ===== Business Scope ===== */
#scope {
    background: #fff;
}

.scope-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
}

.scope-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 24px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: all var(--transition);
    background: #fff;
}

.scope-item:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow);
    background: #f8fafc;
}

.scope-dot {
    width: 10px;
    height: 10px;
    min-width: 10px;
    margin-top: 8px;
    border-radius: 50%;
    background: var(--accent);
}

.scope-item span {
    font-size: 0.95rem;
    color: var(--text);
    line-height: 1.7;
}

/* ===== Stats ===== */
#stats {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
    color: #fff;
    text-align: center;
    padding: 80px 0;
}

#stats .section-label {
    color: #60a5fa;
}

#stats .section-title {
    color: #fff;
}

.stats-counter {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-top: 48px;
}

.stat-item {
    padding: 20px;
}

.stat-number {
    font-size: 2.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, #60a5fa, #22d3ee);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.stat-label {
    font-size: 0.95rem;
    color: #94a3b8;
    margin-top: 8px;
}

.running-time {
    margin-top: 48px;
    padding: 32px 40px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius);
    display: inline-block;
}

.running-time .label {
    font-size: 0.9rem;
    color: #64748b;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.running-time .time-display {
    font-size: 2rem;
    font-weight: 700;
    font-family: "SF Mono", "Fira Code", "Consolas", monospace;
    letter-spacing: 2px;
    color: #e2e8f0;
}

.running-time .time-display span {
    color: var(--accent);
}

/* ===== Contact ===== */
#contact {
    background: var(--bg-light);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.contact-info h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--bg-dark);
}

.contact-info > p {
    color: var(--text-light);
    margin-bottom: 32px;
    line-height: 1.8;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
}

.contact-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    border-radius: 12px;
    background: #eff6ff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--primary-light);
}

.contact-item .label {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: 4px;
}

.contact-item .value {
    font-weight: 600;
    color: var(--text);
}

.contact-qr {
    background: #fff;
    border-radius: var(--radius);
    padding: 32px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.contact-qr img {
    width: 200px;
    height: 200px;
    margin: 0 auto 16px;
    border-radius: 8px;
}

.contact-qr p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.contact-qr .qr-title {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--bg-dark);
    margin-bottom: 8px;
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-dark);
    color: #94a3b8;
    padding: 48px 0 32px;
    text-align: center;
    font-size: 0.9rem;
    line-height: 2;
}

.footer .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.footer-brand {
    font-size: 1.1rem;
    font-weight: 700;
    color: #e2e8f0;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.footer a {
    color: var(--accent);
}

.footer a:hover {
    text-decoration: underline;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .product-center-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    /* 窄屏时视觉块统一在上方，不做左右交错 */
    .product-center-grid:nth-child(even) .product-center-visual {
        order: 0;
    }

    .product-center-list {
        gap: 64px;
    }

    .product-center-visual {
        min-height: 260px;
        max-width: 480px;
        margin: 0 auto;
    }

    .product-center-icon {
        width: 140px;
        height: 140px;
        font-size: 3.6rem;
    }

    .about-card-stack {
        height: 280px;
        max-width: 400px;
        margin: 0 auto;
    }

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

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

    .contact-qr {
        max-width: 360px;
        margin: 0 auto;
    }
}

@media (max-width: 640px) {
    .nav-links {
        position: fixed;
        top: 68px;
        left: 0;
        right: 0;
        background: rgba(15, 23, 42, 0.98);
        flex-direction: column;
        padding: 24px;
        gap: 20px;
        visibility: hidden;
        opacity: 0;
        pointer-events: none;
        transform: translateY(-10px);
        transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease;
        border-bottom: 1px solid rgba(255,255,255,0.08);
    }

    .nav-links.open {
        visibility: visible;
        opacity: 1;
        pointer-events: auto;
        transform: translateY(0);
    }

    .nav-item {
        width: 100%;
    }

    /* 「产品中心」与其它菜单项一样居中，箭头紧跟文字 */
    .nav-dropdown-toggle {
        width: 100%;
        justify-content: center;
    }

    .dropdown-menu {
        position: static;
        transform: none;
        min-width: 0;
        margin-top: 8px;
        padding: 0 0 0 12px;
        background: transparent;
        border: none;
        border-left: 1px solid rgba(255,255,255,0.15);
        border-radius: 0;
        box-shadow: none;
    }

    .nav-toggle {
        display: flex;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .hero-motto span {
        font-size: 0.85rem;
        padding: 6px 16px;
    }

    .stats-counter {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }

    .stat-number {
        font-size: 2rem;
    }

    .running-time .time-display {
        font-size: 1.2rem;
    }

    .section {
        padding: 64px 0;
    }

    .scope-grid {
        grid-template-columns: 1fr;
    }
}
/* ===== Image Modal ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0,0,0,0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    padding: 24px;
}

.modal-overlay.open {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
}

.modal-box {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 24px 80px rgba(0,0,0,0.5);
}

.modal-box img {
    display: block;
    max-width: 90vw;
    max-height: 85vh;
    object-fit: contain;
    width: auto;
    height: auto;
}

.modal-close {
    position: absolute;
    top: 8px;
    right: 12px;
    z-index: 2;
    background: rgba(0,0,0,0.5);
    border: none;
    color: #fff;
    font-size: 1.6rem;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}

.modal-close:hover {
    background: rgba(0,0,0,0.75);
}

.modal-title {
    padding: 14px 20px;
    font-weight: 700;
    font-size: 1rem;
    color: var(--bg-dark);
    background: #f8fafc;
    border-bottom: 1px solid var(--border);
}

/* ===== 弹窗补充说明 / 二维码弹窗（掌上万宠） ===== */
.modal-note {
    display: none;
    padding: 12px 20px 18px;
    text-align: center;
    color: var(--text-light);
    font-size: 0.92rem;
    line-height: 1.7;
}

.modal-box.has-note .modal-note {
    display: block;
}

/* 二维码不铺满屏幕，居中限宽显示 */
.modal-box.modal-qr img {
    width: min(76vw, 300px);
    max-width: none;
    max-height: none;
    margin: 20px auto 0;
    border-radius: 8px;
    background: #fff;
}

/* ===== Footer Copyright ===== */
.footer-copyright {
    margin-top: 8px;
    color: #475569;
}

/* ===== Footer Cert Buttons ===== */
.footer-certs {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    margin-top: 8px;
}

.footer-certs .cert-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 22px;
    background: transparent;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 6px;
    color: #cbd5e1;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition);
    font-family: inherit;
    letter-spacing: 1px;
}

.footer-certs .cert-btn:hover {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.4);
    color: #fff;
}