/* 论文查重平台 - 主样式 */
:root {
    --primary: #4f46e5;
    --primary-light: #6366f1;
    --primary-dark: #3730a3;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-400: #9ca3af;
    --gray-600: #4b5563;
    --gray-800: #1f2937;
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.6;
}

/* ===== 顶部导航 ===== */
.navbar {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    color: white;
    padding: 0 32px;
    height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}
.navbar-brand {
    font-size: 20px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: white;
    white-space: nowrap;
}
.navbar-brand .logo-img {
    height: 36px;
    width: auto;
}
.navbar-brand .logo-text { font-size: 20px; }
.navbar-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}
.navbar-nav a {
    color: rgba(255,255,255,0.88);
    text-decoration: none;
    padding: 7px 14px;
    border-radius: 7px;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
    white-space: nowrap;
}
.navbar-nav a:hover,
.navbar-nav a.active {
    background: rgba(255,255,255,0.2);
    color: white;
}

/* 移动端汉堡菜单 */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 6px;
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: white;
    border-radius: 2px;
    transition: all 0.3s;
}

/* ===== 轮播图 ===== */
.banner-slider {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #1e1b4b 0%, #312e81 60%, #4f46e5 100%);
    min-height: 360px;
    display: flex;
    align-items: center;
}
.banner-slides {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    width: 100%;
}
.banner-slide {
    min-width: 100%;
    padding: 60px 40px;
    text-align: center;
    color: white;
}
.banner-slide h1 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
    line-height: 1.2;
}
.banner-slide p {
    font-size: 18px;
    opacity: 0.88;
    max-width: 600px;
    margin: 0 auto 32px;
}
.banner-slide img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.3;
}
.banner-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: white;
    color: var(--primary-dark);
    font-weight: 700;
    font-size: 15px;
    padding: 13px 32px;
    border-radius: 50px;
    text-decoration: none;
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
    transition: all 0.2s;
    margin: 0 8px;
}
.banner-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(0,0,0,0.3); }
.banner-cta.outline {
    background: transparent;
    color: white;
    border: 2px solid rgba(255,255,255,0.6);
}
.banner-cta.outline:hover { background: rgba(255,255,255,0.15); }

/* 轮播指示器 */
.banner-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
}
.banner-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: all 0.3s;
    border: none;
    padding: 0;
}
.banner-dot.active {
    background: white;
    width: 24px;
    border-radius: 4px;
}

/* 轮播箭头 */
.banner-prev,
.banner-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.2);
    border: none;
    color: white;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
    z-index: 10;
    backdrop-filter: blur(4px);
}
.banner-prev { left: 16px; }
.banner-next { right: 16px; }
.banner-prev:hover,
.banner-next:hover { background: rgba(255,255,255,0.35); }

/* ===== 通知横幅 ===== */
.notice-bar {
    background: linear-gradient(90deg, #fef3c7, #fde68a);
    border-left: 4px solid var(--warning);
    padding: 12px 24px;
    font-size: 14px;
    color: #92400e;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ===== 主容器 ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== 版块标题 ===== */
.section-heading {
    text-align: center;
    margin-bottom: 40px;
}
.section-heading h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 10px;
}
.section-heading p {
    color: var(--gray-600);
    font-size: 16px;
}
.section-heading::after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background: var(--primary);
    margin: 14px auto 0;
    border-radius: 2px;
}

/* ===== 网站介绍区 ===== */
.intro-section {
    padding: 64px 0;
    background: white;
}
.intro-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 20px;
}
.intro-card {
    text-align: center;
    padding: 32px 24px;
    border-radius: 16px;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    transition: all 0.3s;
}
.intro-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}
.intro-card .icon-wrap {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg, #eef2ff, #e0e7ff);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin: 0 auto 16px;
}
.intro-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 10px;
}
.intro-card p {
    font-size: 14px;
    color: var(--gray-600);
    line-height: 1.7;
}

/* 查重系统品牌展示 */
.brands-section {
    padding: 48px 0;
    background: var(--gray-50);
}
.brands-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
    margin-top: 32px;
}
.brand-item {
    background: white;
    border-radius: 12px;
    padding: 16px 12px;
    text-align: center;
    border: 1px solid var(--gray-200);
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-600);
    transition: all 0.2s;
}
.brand-item:hover {
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: var(--shadow);
}
.brand-item .brand-icon { font-size: 24px; display: block; margin-bottom: 6px; }

/* ===== 步骤说明 ===== */
.steps-section {
    padding: 64px 0;
    background: white;
}
.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    position: relative;
    margin-top: 32px;
}
.steps-grid::before {
    content: '';
    position: absolute;
    top: 36px;
    left: 12.5%;
    right: 12.5%;
    height: 2px;
    background: var(--gray-200);
    z-index: 0;
}
.step-item {
    text-align: center;
    padding: 0 16px;
    position: relative;
    z-index: 1;
}
.step-num {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
    color: white;
    font-size: 28px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    box-shadow: 0 4px 15px rgba(79,70,229,0.3);
}
.step-item h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 6px;
}
.step-item p {
    font-size: 13px;
    color: var(--gray-600);
}

/* ===== 页脚 ===== */
.site-footer {
    background: linear-gradient(180deg, #1e1b4b 0%, #111827 100%);
    color: rgba(255,255,255,0.75);
    padding: 56px 0 0;
    margin-top: 64px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
}
.footer-brand .brand-name {
    font-size: 20px;
    font-weight: 700;
    color: white;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.footer-brand p {
    font-size: 13px;
    line-height: 1.8;
    max-width: 260px;
}
.footer-col h4 {
    font-size: 15px;
    font-weight: 600;
    color: white;
    margin-bottom: 16px;
}
.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-links a {
    color: rgba(255,255,255,0.65);
    text-decoration: none;
    font-size: 13px;
    transition: color 0.2s;
}
.footer-links a:hover { color: white; }
.footer-wechat {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
}
.footer-wechat img {
    width: 100px;
    height: 100px;
    border-radius: 8px;
    background: white;
    padding: 4px;
}
.footer-wechat .wechat-placeholder {
    width: 100px;
    height: 100px;
    border-radius: 8px;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: rgba(255,255,255,0.4);
}
.footer-bottom a {
    color: rgba(255,255,255,0.4);
    text-decoration: none;
}
.footer-bottom a:hover { color: white; }

/* ===== 查重主页 ===== */
.page-header {
    text-align: center;
    padding: 48px 24px 32px;
}
.page-header h1 { font-size: 32px; font-weight: 700; color: var(--gray-800); margin-bottom: 10px; }
.page-header p { color: var(--gray-600); font-size: 16px; max-width: 600px; margin: 0 auto; }

/* 产品分类标签 */
.product-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}
.product-tab {
    padding: 8px 20px;
    border-radius: 50px;
    border: 2px solid var(--gray-200);
    background: white;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--gray-600);
}
.product-tab:hover { border-color: var(--primary-light); color: var(--primary); }
.product-tab.active {
    border-color: var(--primary);
    background: var(--primary);
    color: white;
}

.sub-section-title {
    font-size: 18px;
    font-weight: 600;
    margin: 24px 0 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--gray-800);
}
.sub-section-title::before {
    content: '';
    width: 4px;
    height: 18px;
    background: var(--primary);
    border-radius: 2px;
    display: inline-block;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(195px, 1fr));
    gap: 14px;
    margin-bottom: 32px;
}

.product-card {
    background: white;
    border: 2px solid var(--gray-200);
    border-radius: 12px;
    padding: 18px 14px;
    cursor: pointer;
    transition: all 0.25s;
    text-align: center;
    position: relative;
}
.product-card:hover { border-color: var(--primary-light); box-shadow: var(--shadow); transform: translateY(-2px); }
.product-card.selected { border-color: var(--primary); background: #eef2ff; box-shadow: 0 0 0 3px rgba(79,70,229,0.15); }
.product-card.selected::after {
    content: '✓';
    position: absolute;
    top: 10px; right: 12px;
    background: var(--primary);
    color: white;
    width: 22px; height: 22px;
    border-radius: 50%;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.product-icon { font-size: 28px; margin-bottom: 8px; }
.product-name { font-weight: 600; font-size: 14px; margin-bottom: 6px; color: var(--gray-800); line-height: 1.3; }
.product-price {
    font-size: 12px;
    color: var(--primary);
    font-weight: 500;
    background: #eef2ff;
    padding: 2px 8px;
    border-radius: 20px;
    display: inline-block;
    margin-bottom: 5px;
}
.product-desc { font-size: 11px; color: var(--gray-400); line-height: 1.4; }
.product-format { font-size: 11px; color: var(--gray-400); margin-top: 4px; }

/* ===== 上传区域 ===== */
.upload-area {
    background: white;
    border-radius: 16px;
    padding: 32px;
    box-shadow: var(--shadow);
    margin-bottom: 24px;
}
.upload-section-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.upload-section-title .step-badge {
    background: var(--primary);
    color: white;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
}
.selected-product-bar {
    background: #eef2ff;
    border: 1px solid #c7d2fe;
    border-radius: 8px;
    padding: 10px 16px;
    font-size: 14px;
    margin-bottom: 20px;
    color: var(--primary-dark);
}
.info-form { margin-bottom: 20px; }
.form-row { display: flex; gap: 16px; }
.form-group { margin-bottom: 16px; flex: 1; }
.form-group.half { flex: 1; }
.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--gray-600);
}
.form-group .required { color: var(--danger); margin-left: 2px; }
.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--gray-200);
    border-radius: 8px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
    background: white;
}
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79,70,229,0.1); }

.dropzone {
    border: 2px dashed var(--gray-200);
    border-radius: 12px;
    padding: 48px 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    background: var(--gray-50);
    display: flex;
    flex-direction: column;
    align-items: center;
}
.dropzone:hover, .dropzone.dragover { border-color: var(--primary); background: #eef2ff; }
.dropzone .upload-icon { font-size: 48px; margin-bottom: 12px; }
.dropzone h3 { font-size: 17px; color: var(--gray-800); margin-bottom: 6px; }
.dropzone p { color: var(--gray-400); font-size: 14px; }

.file-selected {
    background: #f0fdf4;
    border: 2px solid var(--success);
    border-radius: 12px;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 16px;
}
.file-selected .file-icon { font-size: 28px; flex-shrink: 0; }
.file-selected .file-info { flex: 1; }
.file-selected .file-info .file-name { font-weight: 600; color: var(--gray-800); }
.file-selected .file-info .file-size { font-size: 13px; color: var(--gray-400); }

/* ===== 价格卡片 ===== */
.price-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 16px;
    padding: 24px 28px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-lg);
}
.price-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; }
.price-item { background: rgba(255,255,255,0.15); border-radius: 10px; padding: 12px 16px; }
.price-item .label { font-size: 12px; opacity: 0.8; }
.price-item .value { font-size: 18px; font-weight: 600; margin-top: 2px; }
.price-total {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid rgba(255,255,255,0.2);
    font-size: 15px;
    text-align: center;
}
.price-total strong { font-size: 28px; font-weight: 700; }

/* ===== 支付区域 ===== */
.pay-section {
    background: white;
    border-radius: 16px;
    padding: 32px;
    box-shadow: var(--shadow);
    text-align: center;
    margin-bottom: 24px;
}
.pay-section h3 { font-size: 20px; font-weight: 600; margin-bottom: 8px; }
.qr-code-wrapper {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 24px;
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    border-radius: 16px;
    margin: 20px auto;
}
.qr-tips { font-size: 14px; color: var(--gray-600); }
.pay-amount { font-size: 28px; font-weight: 700; color: var(--danger); margin: 12px 0; }
.pay-amount small { font-size: 16px; color: var(--gray-600); font-weight: 400; }
.pay-error-tip {
    background: #fef3c7;
    border: 1px solid #fde68a;
    border-radius: 8px;
    padding: 12px 16px;
    margin: 12px 0;
    font-size: 14px;
    color: #92400e;
}

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}
.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(79,70,229,0.3);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(79,70,229,0.4); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }
.btn-success { background: var(--success); color: white; }
.btn-success:hover { background: #059669; }
.btn-outline { background: transparent; border: 2px solid var(--gray-200); color: var(--gray-600); padding: 10px 24px; }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-lg { padding: 14px 36px; font-size: 16px; }
.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-block { width: 100%; justify-content: center; }
.btn-ghost { background: transparent; border: 1px solid var(--gray-200); color: var(--gray-600); padding: 5px 12px; font-size: 13px; border-radius: 6px; cursor: pointer; transition: all 0.2s; }
.btn-ghost:hover { background: var(--gray-100); }

/* ===== 订单状态 ===== */
.order-card {
    background: white;
    border-radius: 16px;
    padding: 28px 32px;
    box-shadow: var(--shadow);
    margin-bottom: 24px;
}
.order-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 20px; }
.order-no { font-size: 13px; color: var(--gray-400); margin-bottom: 4px; }
.order-title { font-size: 18px; font-weight: 600; }
.badge { padding: 4px 12px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-success { background: #d1fae5; color: #065f46; }
.badge-info { background: #dbeafe; color: #1e40af; }
.badge-danger { background: #fee2e2; color: #991b1b; }

.order-steps { display: flex; gap: 0; margin: 24px 0; }
.step { flex: 1; text-align: center; position: relative; }
.step::after {
    content: '';
    position: absolute;
    top: 18px; left: 50%;
    width: 100%; height: 2px;
    background: var(--gray-200);
    z-index: 0;
}
.step:last-child::after { display: none; }
.step-icon {
    width: 36px; height: 36px;
    border-radius: 50%;
    background: var(--gray-200);
    color: var(--gray-400);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 8px;
    font-size: 16px;
    position: relative;
    z-index: 1;
}
.step.done .step-icon { background: var(--success); color: white; }
.step.active .step-icon { background: var(--primary); color: white; animation: pulse 1.5s infinite; }
.step-label { font-size: 12px; color: var(--gray-600); }

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(79,70,229,0.4); }
    50% { box-shadow: 0 0 0 8px rgba(79,70,229,0); }
}

/* ===== 空白页占位 ===== */
.empty-page {
    min-height: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 60px 24px;
}
.empty-page .empty-icon { font-size: 72px; margin-bottom: 24px; opacity: 0.5; }
.empty-page h2 { font-size: 24px; font-weight: 600; color: var(--gray-800); margin-bottom: 12px; }
.empty-page p { color: var(--gray-600); font-size: 15px; }

/* ===== 关于我们 ===== */
.about-content {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow);
    line-height: 1.9;
    font-size: 15px;
    color: var(--gray-600);
}
.about-content h2, .about-content h3 {
    color: var(--gray-800);
    margin: 24px 0 12px;
    font-weight: 600;
}
.about-content p { margin-bottom: 14px; }

/* ===== 加载遮罩 ===== */
.spinner {
    display: inline-block;
    width: 20px; height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
    .brands-grid { grid-template-columns: repeat(4, 1fr); }
    .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
    .steps-grid::before { display: none; }
    .intro-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .navbar { padding: 0 16px; }
    .navbar-nav { display: none; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0; background: var(--primary-dark); padding: 16px; gap: 4px; z-index: 99; }
    .navbar-nav.open { display: flex; }
    .navbar-nav a { padding: 12px 16px; border-radius: 8px; }
    .nav-toggle { display: flex; }
    .banner-slide h1 { font-size: 28px; }
    .banner-slide p { font-size: 15px; }
    .products-grid { grid-template-columns: repeat(2, 1fr); }
    .intro-grid { grid-template-columns: 1fr; }
    .brands-grid { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; }
    .form-row { flex-direction: column; gap: 0; }
}

@media (max-width: 480px) {
    .brands-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr; }
    .steps-grid { grid-template-columns: 1fr; }
    .banner-cta { padding: 11px 22px; font-size: 14px; }
}