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Zhongwei Li
2025-11-30 08:43:13 +08:00
commit f6d4a68978
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/*
* Netresearch Brand Styles
* Complete CSS template following brand guidelines
*/
/* ============================================
CSS CUSTOM PROPERTIES
============================================ */
:root {
/* Brand Colors */
--color-primary: #2F99A4;
--color-primary-rgb: 47, 153, 164;
--color-primary-dark: #257880;
--color-accent: #FF4D00;
--color-accent-rgb: 255, 77, 0;
--color-accent-dark: #CC3D00;
/* Neutral Colors */
--color-text-primary: #585961;
--color-text-secondary: #8A8B93;
--color-background: #FFFFFF;
--color-background-alt: #F5F5F5;
--color-border: #CCCDCC;
--color-border-light: #E5E5E5;
/* Typography */
--font-headline: 'Raleway', sans-serif;
--font-body: 'Open Sans', sans-serif;
/* Font Sizes */
--font-size-xs: 12px;
--font-size-sm: 14px;
--font-size-base: 16px;
--font-size-lg: 18px;
--font-size-xl: 20px;
--font-size-2xl: 24px;
--font-size-3xl: 28px;
--font-size-4xl: 36px;
--font-size-5xl: 48px;
--font-size-6xl: 56px;
/* Spacing */
--spacing-xs: 8px;
--spacing-sm: 12px;
--spacing-md: 16px;
--spacing-lg: 24px;
--spacing-xl: 32px;
--spacing-xxl: 48px;
--spacing-3xl: 64px;
--spacing-4xl: 96px;
/* Shadows */
--shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
--shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
--shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.16);
}
/* ============================================
RESET & BASE STYLES
============================================ */
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
html {
scroll-behavior: smooth;
}
body {
font-family: var(--font-body);
font-size: var(--font-size-base);
line-height: 1.6;
color: var(--color-text-primary);
background-color: var(--color-background);
}
/* ============================================
TYPOGRAPHY
============================================ */
h1, h2, h3, h4, h5, h6 {
font-family: var(--font-headline);
font-weight: 700;
line-height: 1.2;
color: var(--color-text-primary);
}
h1 {
font-size: var(--font-size-5xl);
margin-bottom: var(--spacing-lg);
}
h2 {
font-size: var(--font-size-4xl);
margin-bottom: var(--spacing-lg);
}
h3 {
font-size: var(--font-size-3xl);
font-weight: 600;
margin-bottom: var(--spacing-md);
}
h4 {
font-size: var(--font-size-2xl);
font-weight: 600;
margin-bottom: var(--spacing-sm);
}
p {
margin-bottom: var(--spacing-md);
}
.lead {
font-size: var(--font-size-xl);
font-weight: 400;
line-height: 1.6;
}
a {
color: var(--color-primary);
text-decoration: none;
transition: all 0.3s ease;
}
a:hover {
color: var(--color-primary-dark);
}
/* ============================================
LAYOUT
============================================ */
.container {
width: 100%;
max-width: 1200px;
margin: 0 auto;
padding: 0 var(--spacing-lg);
}
.section {
padding: var(--spacing-4xl) 0;
}
.section-alt {
background-color: var(--color-background-alt);
}
.section-title {
text-align: center;
margin-bottom: var(--spacing-md);
}
.section-subtitle {
text-align: center;
font-size: var(--font-size-xl);
color: var(--color-text-secondary);
margin-bottom: var(--spacing-xxl);
}
.two-column {
display: grid;
grid-template-columns: 1fr 1fr;
gap: var(--spacing-xl);
align-items: center;
}
.three-column {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: var(--spacing-lg);
}
/* ============================================
NAVIGATION
============================================ */
.navbar {
position: sticky;
top: 0;
z-index: 1000;
background: var(--color-background);
box-shadow: var(--shadow-sm);
padding: var(--spacing-md) 0;
}
.navbar-container {
display: flex;
justify-content: space-between;
align-items: center;
max-width: 1200px;
margin: 0 auto;
padding: 0 var(--spacing-lg);
}
.navbar-logo {
height: 48px;
}
.navbar-menu {
display: flex;
gap: var(--spacing-lg);
list-style: none;
}
.navbar-link {
font-family: var(--font-headline);
font-size: var(--font-size-base);
font-weight: 400;
color: var(--color-text-primary);
padding: var(--spacing-xs) var(--spacing-md);
transition: all 0.3s ease;
}
.navbar-link:hover,
.navbar-link.active {
color: var(--color-primary);
font-weight: 600;
}
.navbar-toggle {
display: none;
flex-direction: column;
gap: 4px;
background: none;
border: none;
cursor: pointer;
}
.navbar-toggle span {
display: block;
width: 24px;
height: 3px;
background: var(--color-primary);
transition: all 0.3s ease;
}
/* ============================================
HERO SECTION
============================================ */
.hero {
position: relative;
display: flex;
align-items: center;
justify-content: center;
min-height: 600px;
padding: var(--spacing-4xl) var(--spacing-lg);
background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
color: var(--color-background);
text-align: center;
}
.hero-content {
max-width: 800px;
z-index: 1;
}
.hero-title {
color: var(--color-background);
margin-bottom: var(--spacing-lg);
}
.hero-subtitle {
font-size: var(--font-size-xl);
line-height: 1.6;
margin-bottom: var(--spacing-xl);
opacity: 0.95;
}
.hero-cta {
display: flex;
gap: var(--spacing-md);
justify-content: center;
flex-wrap: wrap;
}
/* ============================================
BUTTONS
============================================ */
.btn-primary,
.btn-secondary,
.btn-outline {
display: inline-block;
font-family: var(--font-headline);
font-size: var(--font-size-base);
font-weight: 600;
line-height: 1;
text-align: center;
text-decoration: none;
padding: 12px 32px;
border: none;
border-radius: 4px;
cursor: pointer;
transition: all 0.3s ease;
}
.btn-primary {
background-color: var(--color-primary);
color: var(--color-background);
}
.btn-primary:hover {
background-color: var(--color-primary-dark);
transform: translateY(-2px);
box-shadow: 0 4px 12px rgba(47, 153, 164, 0.3);
}
.btn-secondary {
background-color: var(--color-accent);
color: var(--color-background);
}
.btn-secondary:hover {
background-color: var(--color-accent-dark);
box-shadow: 0 4px 12px rgba(255, 77, 0, 0.3);
}
.btn-outline {
background-color: transparent;
color: var(--color-background);
border: 2px solid var(--color-background);
}
.btn-outline:hover {
background-color: var(--color-background);
color: var(--color-primary);
}
.btn-large {
padding: 16px 48px;
font-size: var(--font-size-lg);
}
.btn-small {
padding: 8px 24px;
font-size: var(--font-size-sm);
}
/* ============================================
CARDS
============================================ */
.card {
background: var(--color-background);
border-radius: 8px;
box-shadow: var(--shadow-sm);
overflow: hidden;
transition: all 0.3s ease;
height: 100%;
}
.card:hover {
box-shadow: var(--shadow-md);
transform: translateY(-4px);
}
.card-image {
width: 100%;
height: 240px;
object-fit: cover;
}
.card-content {
padding: var(--spacing-lg);
}
.card-title {
font-size: var(--font-size-2xl);
font-weight: 600;
margin-bottom: var(--spacing-sm);
}
.card-text {
font-size: var(--font-size-base);
line-height: 1.6;
color: var(--color-text-primary);
margin-bottom: var(--spacing-md);
}
.card-footer {
padding: var(--spacing-md) var(--spacing-lg);
border-top: 1px solid var(--color-border-light);
background-color: var(--color-background-alt);
}
.card-meta {
font-size: var(--font-size-sm);
color: var(--color-text-secondary);
}
/* ============================================
LINKS
============================================ */
.link-standalone {
font-family: var(--font-headline);
font-weight: 600;
display: inline-flex;
align-items: center;
gap: 8px;
color: var(--color-primary);
}
.link-standalone::after {
content: '→';
transition: transform 0.3s ease;
}
.link-standalone:hover::after {
transform: translateX(4px);
}
/* ============================================
FORMS
============================================ */
.form-group {
margin-bottom: var(--spacing-lg);
}
.form-label {
display: block;
font-size: var(--font-size-sm);
font-weight: 600;
color: var(--color-text-primary);
margin-bottom: var(--spacing-xs);
}
.form-input,
.form-textarea {
width: 100%;
font-family: var(--font-body);
font-size: var(--font-size-base);
color: var(--color-text-primary);
padding: 12px 16px;
border: 1px solid var(--color-border);
border-radius: 4px;
background: var(--color-background);
transition: all 0.3s ease;
}
.form-input:focus,
.form-textarea:focus {
outline: none;
border-color: var(--color-primary);
box-shadow: 0 0 0 3px rgba(47, 153, 164, 0.1);
}
.form-input::placeholder,
.form-textarea::placeholder {
color: var(--color-text-secondary);
}
.form-textarea {
min-height: 120px;
resize: vertical;
}
/* ============================================
FOOTER
============================================ */
.footer {
background-color: var(--color-text-primary);
color: var(--color-background);
padding: var(--spacing-4xl) 0 var(--spacing-lg);
}
.footer-content {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
gap: var(--spacing-xl);
max-width: 1200px;
margin: 0 auto;
padding: 0 var(--spacing-lg);
margin-bottom: var(--spacing-xl);
}
.footer-section h4 {
font-size: var(--font-size-lg);
font-weight: 600;
color: var(--color-background);
margin-bottom: var(--spacing-md);
}
.footer-section ul {
list-style: none;
padding: 0;
margin: 0;
}
.footer-section li {
margin-bottom: var(--spacing-sm);
}
.footer-section a {
color: rgba(255, 255, 255, 0.8);
text-decoration: none;
transition: color 0.3s ease;
}
.footer-section a:hover {
color: var(--color-primary);
}
.footer-bottom {
border-top: 1px solid rgba(255, 255, 255, 0.1);
padding-top: var(--spacing-lg);
text-align: center;
}
.footer-bottom p {
color: rgba(255, 255, 255, 0.6);
font-size: var(--font-size-sm);
margin: 0;
}
/* ============================================
RESPONSIVE DESIGN
============================================ */
/* Tablet (768px and below) */
@media (max-width: 1024px) {
.three-column {
grid-template-columns: repeat(2, 1fr);
}
}
@media (max-width: 768px) {
/* Typography */
h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
/* Layout */
.two-column,
.three-column {
grid-template-columns: 1fr;
}
/* Hero */
.hero {
min-height: 400px;
padding: var(--spacing-xxl) var(--spacing-lg);
}
.hero-title {
font-size: var(--font-size-4xl);
}
.hero-subtitle {
font-size: var(--font-size-lg);
}
.hero-cta {
flex-direction: column;
}
/* Navigation */
.navbar-toggle {
display: flex;
}
.navbar-menu {
position: absolute;
top: 100%;
left: 0;
right: 0;
flex-direction: column;
background: var(--color-background);
padding: var(--spacing-lg);
box-shadow: var(--shadow-md);
transform: translateY(-100%);
opacity: 0;
visibility: hidden;
transition: all 0.3s ease;
}
.navbar-menu.active {
transform: translateY(0);
opacity: 1;
visibility: visible;
}
/* Sections */
.section {
padding: var(--spacing-xxl) 0;
}
}
/* Mobile (600px and below) */
@media (max-width: 600px) {
h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
.hero {
min-height: 300px;
}
.btn-large {
padding: 12px 32px;
font-size: var(--font-size-base);
}
}
/* ============================================
UTILITIES
============================================ */
.text-center {
text-align: center;
}
.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }