/* ============================================
   幸元电气（苏州）有限公司 - 官方网站样式
   ============================================ */

/* CSS Variables */
:root {
    --color-primary: #0052CC;
    --color-primary-dark: #003d99;
    --color-primary-light: #0080FF;
    --color-accent: #FF6B1A;
    --color-accent-dark: #e55a0e;
    --color-dark: #0a1628;
    --color-dark-2: #142841;
    --color-dark-3: #1e3a5f;
    --color-gray-1: #f4f6f9;
    --color-gray-2: #e8ecf1;
    --color-gray-3: #d0d6df;
    --color-gray-4: #9aa5b5;
    --color-gray-5: #6b7689;
    --color-text: #1a2332;
    --color-text-light: #5a6678;
    --color-white: #ffffff;
    --color-success: #00b884;
    --color-gradient: linear-gradient(135deg, #0052CC 0%, #0080FF 100%);
    --color-gradient-dark: linear-gradient(135deg, #0a1628 0%, #1e3a5f 100%);
    --color-gradient-accent: linear-gradient(135deg, #FF6B1A 0%, #FF9447 100%);
    --shadow-sm: 0 2px 8px rgba(10, 22, 40, 0.06);
    --shadow-md: 0 4px 20px rgba(10, 22, 40, 0.08);
    --shadow-lg: 0 8px 40px rgba(10, 22, 40, 0.12);
    --shadow-xl: 0 20px 60px rgba(10, 22, 40, 0.15);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 1280px;
    --header-height: 72px;
}

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

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

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: var(--color-text);
    background: var(--color-white);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

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

/* Section */
.section {
    padding: 80px 0;
    position: relative;
}

.section-gray {
    background: var(--color-gray-1);
}

.section-dark {
    background: var(--color-dark);
    color: var(--color-white);
}

/* Section Header */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 56px;
}

.section-header .eyebrow {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-primary);
    background: rgba(0, 82, 204, 0.08);
    padding: 6px 16px;
    border-radius: 20px;
    margin-bottom: 20px;
}

.section-dark .section-header .eyebrow {
    color: var(--color-primary-light);
    background: rgba(0, 128, 255, 0.15);
}

.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 16px;
    line-height: 1.3;
}

.section-dark .section-header h2 {
    color: var(--color-white);
}

.section-header p {
    font-size: 16px;
    color: var(--color-text-light);
    line-height: 1.8;
}

.section-dark .section-header p {
    color: rgba(255, 255, 255, 0.7);
}

/* ============================================
   Header / Navigation
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.header .container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--color-gradient);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(0, 82, 204, 0.3);
    flex-shrink: 0;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-text .cn {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-dark);
}

.logo-text .en {
    font-size: 10px;
    color: var(--color-gray-5);
    letter-spacing: 0.5px;
}

/* Nav */
.nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav a {
    padding: 8px 18px;
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text-light);
    border-radius: var(--radius-sm);
    position: relative;
}

.nav a:hover {
    color: var(--color-primary);
}

.nav a.active {
    color: var(--color-primary);
    background: rgba(0, 82, 204, 0.08);
}

.nav a.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--color-primary);
    border-radius: 2px;
}

/* Nav CTA */
.nav-cta {
    margin-left: 12px;
    padding: 10px 24px !important;
    background: var(--color-gradient) !important;
    color: white !important;
    border-radius: var(--radius-sm) !important;
    font-weight: 600 !important;
    box-shadow: 0 4px 12px rgba(0, 82, 204, 0.25);
    transition: transform var(--transition), box-shadow var(--transition);
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(0, 82, 204, 0.35);
    color: white !important;
    background: var(--color-gradient) !important;
}

/* Mobile menu toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-dark);
    border-radius: 2px;
    transition: all var(--transition);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 100vh;
    background: var(--color-dark);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--color-gradient-dark);
}

.hero-bg .glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
}

.hero-bg .glow-1 {
    width: 500px;
    height: 500px;
    background: var(--color-primary);
    top: -100px;
    right: -100px;
}

.hero-bg .glow-2 {
    width: 400px;
    height: 400px;
    background: var(--color-accent);
    bottom: -100px;
    left: 10%;
    opacity: 0.2;
}

/* Grid pattern overlay */
.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}

.hero .container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
    padding-top: 40px;
    padding-bottom: 60px;
}

.hero-content {
    color: white;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 128, 255, 0.15);
    border: 1px solid rgba(0, 128, 255, 0.3);
    padding: 8px 18px;
    border-radius: 24px;
    font-size: 13px;
    color: #7ab8ff;
    font-weight: 500;
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease;
}

.hero-badge .dot {
    width: 8px;
    height: 8px;
    background: var(--color-primary-light);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.hero h1 {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease 0.1s both;
}

.hero h1 .highlight {
    background: var(--color-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero h1 .accent-text {
    color: var(--color-accent);
}

.hero-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: 36px;
    max-width: 520px;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
    animation: fadeInUp 0.8s ease 0.3s both;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    border: none;
    font-family: inherit;
}

.btn-primary {
    background: var(--color-gradient);
    color: white;
    box-shadow: 0 6px 20px rgba(0, 82, 204, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 82, 204, 0.45);
    color: white;
}

.btn-outline {
    background: transparent;
    color: white;
    border: 1.5px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
    border-color: var(--color-primary-light);
    background: rgba(0, 128, 255, 0.1);
    color: white;
}

.btn-accent {
    background: var(--color-gradient-accent);
    color: white;
    box-shadow: 0 6px 20px rgba(255, 107, 26, 0.3);
}

.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 107, 26, 0.4);
    color: white;
}

.btn-dark {
    background: var(--color-dark);
    color: white;
}

.btn-dark:hover {
    background: var(--color-dark-2);
    color: white;
}

/* Hero stats */
.hero-stats {
    display: flex;
    gap: 40px;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-stat .num {
    font-size: 36px;
    font-weight: 800;
    color: white;
    line-height: 1;
}

.hero-stat .num .plus {
    color: var(--color-primary-light);
}

.hero-stat .label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 6px;
}

/* Hero visual */
.hero-visual {
    position: relative;
    animation: fadeInRight 1s ease 0.3s both;
}

.hero-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 32px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.hero-card-title {
    font-size: 16px;
    font-weight: 600;
    color: white;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.hero-card-title .icon {
    width: 32px;
    height: 32px;
    background: rgba(0, 128, 255, 0.2);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-card-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.hero-card-item {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-md);
    padding: 20px;
    transition: all var(--transition);
}

.hero-card-item:hover {
    background: rgba(0, 128, 255, 0.1);
    border-color: rgba(0, 128, 255, 0.3);
    transform: translateY(-3px);
}

.hero-card-item .icon-box {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
    font-size: 20px;
}

.hero-card-item h4 {
    font-size: 14px;
    font-weight: 600;
    color: white;
    margin-bottom: 4px;
}

.hero-card-item p {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.5;
}

/* ============================================
   Trust Bar
   ============================================ */
.trust-bar {
    background: var(--color-white);
    padding: 40px 0;
    border-bottom: 1px solid var(--color-gray-2);
}

.trust-bar .container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.trust-item {
    text-align: center;
    padding: 16px;
}

.trust-item .icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    background: rgba(0, 82, 204, 0.08);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    color: var(--color-primary);
}

.trust-item h4 {
    font-size: 28px;
    font-weight: 800;
    color: var(--color-dark);
    margin-bottom: 4px;
}

.trust-item h4 .plus {
    color: var(--color-primary);
}

.trust-item p {
    font-size: 14px;
    color: var(--color-text-light);
}

/* ============================================
   About Preview
   ============================================ */
.about-preview {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-preview-visual {
    position: relative;
}

.about-visual-card {
    background: var(--color-gradient-dark);
    border-radius: var(--radius-lg);
    padding: 48px;
    color: white;
    position: relative;
    overflow: hidden;
}

.about-visual-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 128, 255, 0.1) 0%, transparent 60%);
}

.about-visual-card .big-num {
    font-size: 88px;
    font-weight: 800;
    line-height: 1;
    background: var(--color-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
    position: relative;
}

.about-visual-card .label {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 32px;
    position: relative;
}

.about-visual-card .info-list {
    position: relative;
}

.about-visual-card .info-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 20px;
}

.about-visual-card .info-item .check {
    width: 24px;
    height: 24px;
    background: rgba(0, 128, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 12px;
    color: var(--color-primary-light);
    margin-top: 2px;
}

.about-visual-card .info-item .text {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.6;
}

.about-preview-content .eyebrow {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-primary);
    background: rgba(0, 82, 204, 0.08);
    padding: 6px 16px;
    border-radius: 20px;
    margin-bottom: 20px;
}

.about-preview-content h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 20px;
    line-height: 1.3;
}

.about-preview-content > p {
    font-size: 16px;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 28px;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 32px;
}

.about-feature {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.about-feature .icon {
    width: 44px;
    height: 44px;
    background: rgba(0, 82, 204, 0.08);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--color-primary);
    flex-shrink: 0;
}

.about-feature h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 4px;
}

.about-feature p {
    font-size: 13px;
    color: var(--color-text-light);
    line-height: 1.5;
}

/* ============================================
   Products Grid
   ============================================ */
.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.product-card {
    background: white;
    border: 1px solid var(--color-gray-2);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
    cursor: pointer;
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.product-card-visual {
    height: 240px;
    display: flex;
    align-items: flex-end;
    justify-content: flex-start;
    position: relative;
    overflow: hidden;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.product-card-visual .img-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 30%, rgba(10, 22, 40, 0.75) 100%);
    z-index: 1;
}

.product-card-visual .img-label {
    position: relative;
    z-index: 2;
    padding: 16px 20px;
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.product-card-visual .bg-pattern {
    position: absolute;
    inset: 0;
    opacity: 0.1;
    background-image:
        linear-gradient(45deg, currentColor 25%, transparent 25%),
        linear-gradient(-45deg, currentColor 25%, transparent 25%);
    background-size: 20px 20px;
}

.product-card-visual .icon-large {
    font-size: 64px;
    position: relative;
    z-index: 1;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.15));
}

.product-card-body {
    padding: 28px;
}

.product-card-body .tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-primary);
    background: rgba(0, 82, 204, 0.08);
    padding: 4px 12px;
    border-radius: 12px;
    margin-bottom: 12px;
}

.product-card-body h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 10px;
}

.product-card-body p {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 18px;
}

.product-card-body .features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.product-card-body .feature-tag {
    font-size: 12px;
    color: var(--color-gray-5);
    background: var(--color-gray-1);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
}

.product-card-body .link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
    margin-top: 16px;
    transition: gap var(--transition);
}

.product-card:hover .link {
    gap: 10px;
}

/* ============================================
   Advantages
   ============================================ */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.advantage-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    transition: all var(--transition);
}

.advantage-card:hover {
    background: rgba(0, 128, 255, 0.08);
    border-color: rgba(0, 128, 255, 0.2);
    transform: translateY(-4px);
}

.advantage-card .num {
    font-size: 48px;
    font-weight: 800;
    color: rgba(0, 128, 255, 0.3);
    line-height: 1;
    margin-bottom: 20px;
}

.advantage-card .icon {
    width: 52px;
    height: 52px;
    background: rgba(0, 128, 255, 0.15);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--color-primary-light);
    margin-bottom: 20px;
}

.advantage-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: white;
    margin-bottom: 10px;
}

.advantage-card p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
}

/* ============================================
   Process / Timeline
   ============================================ */
.process-timeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    position: relative;
}

.process-timeline::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 12.5%;
    right: 12.5%;
    height: 2px;
    background: var(--color-gray-2);
}

.process-step {
    text-align: center;
    position: relative;
    padding: 0 20px;
}

.process-step .step-num {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: white;
    border: 2px solid var(--color-gray-2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 800;
    color: var(--color-primary);
    position: relative;
    z-index: 1;
    transition: all var(--transition);
}

.process-step:hover .step-num {
    background: var(--color-gradient);
    color: white;
    border-color: transparent;
    transform: scale(1.05);
    box-shadow: 0 8px 24px rgba(0, 82, 204, 0.3);
}

.process-step h4 {
    font-size: 17px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 8px;
}

.process-step p {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
    padding: 80px 0;
    background: var(--color-dark);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 82, 204, 0.2) 0%, transparent 70%);
}

.cta-section::after {
    content: '';
    position: absolute;
    bottom: -50%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 107, 26, 0.1) 0%, transparent 70%);
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 40px;
    font-weight: 800;
    color: white;
    margin-bottom: 16px;
    line-height: 1.3;
}

.cta-content p {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 36px;
    line-height: 1.7;
}

.cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--color-dark);
    color: rgba(255, 255, 255, 0.6);
    padding: 64px 0 0;
}

.footer-main {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand .logo-text .cn {
    color: white;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 24px;
    color: rgba(255, 255, 255, 0.5);
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 14px;
    font-size: 14px;
}

.footer-contact-item .icon {
    color: var(--color-primary-light);
    font-size: 16px;
    margin-top: 2px;
    flex-shrink: 0;
}

.footer-col h4 {
    font-size: 16px;
    font-weight: 600;
    color: white;
    margin-bottom: 20px;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul li a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    transition: color var(--transition);
}

.footer-col ul li a:hover {
    color: var(--color-primary-light);
}

.footer-bottom {
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

.footer-bottom .links {
    display: flex;
    gap: 24px;
}

.footer-bottom .links a:hover {
    color: rgba(255, 255, 255, 0.7);
}

/* ============================================
   Page Banner (inner pages)
   ============================================ */
.page-banner {
    background: var(--color-dark);
    color: white;
    padding: calc(var(--header-height) + 60px) 0 60px;
    position: relative;
    overflow: hidden;
}

.page-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--color-gradient-dark);
}

.page-banner::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}

.page-banner .container {
    position: relative;
    z-index: 1;
}

.page-banner .breadcrumb {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 16px;
}

.page-banner .breadcrumb a:hover {
    color: var(--color-primary-light);
}

.page-banner h1 {
    font-size: 40px;
    font-weight: 800;
    margin-bottom: 16px;
}

.page-banner p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.6);
    max-width: 600px;
    line-height: 1.7;
}

/* ============================================
   About Page
   ============================================ */
.about-story {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-story-content .eyebrow {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-primary);
    background: rgba(0, 82, 204, 0.08);
    padding: 6px 16px;
    border-radius: 20px;
    margin-bottom: 20px;
}

.about-story-content h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.3;
}

.about-story-content p {
    font-size: 16px;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-story-visual {
    background: var(--color-gradient-dark);
    border-radius: var(--radius-lg);
    padding: 48px;
    color: white;
    position: relative;
    overflow: hidden;
}

.about-story-visual::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -30%;
    width: 160%;
    height: 160%;
    background: radial-gradient(circle, rgba(0, 128, 255, 0.15) 0%, transparent 60%);
}

.about-story-visual .quote-icon {
    font-size: 48px;
    color: var(--color-primary-light);
    opacity: 0.3;
    margin-bottom: 16px;
    position: relative;
}

.about-story-visual .quote-text {
    font-size: 20px;
    font-weight: 600;
    line-height: 1.6;
    margin-bottom: 24px;
    position: relative;
}

.about-story-visual .quote-author {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    position: relative;
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-gray-2);
    transform: translateX(-50%);
}

.timeline-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 48px;
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-item .timeline-content {
    width: 45%;
    background: white;
    border: 1px solid var(--color-gray-2);
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.timeline-item .timeline-content:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.timeline-item .timeline-date {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.timeline-item .timeline-content h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 8px;
}

.timeline-item .timeline-content p {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.6;
}

.timeline-item .timeline-dot {
    position: absolute;
    left: 50%;
    top: 24px;
    transform: translateX(-50%);
    width: 16px;
    height: 16px;
    background: var(--color-primary);
    border: 4px solid white;
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(0, 82, 204, 0.15);
}

/* Culture cards */
.culture-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.culture-card {
    text-align: center;
    padding: 40px 28px;
    background: white;
    border: 1px solid var(--color-gray-2);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
}

.culture-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.culture-card .icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: var(--color-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: white;
}

.culture-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 12px;
}

.culture-card p {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ============================================
   Products Page
   ============================================ */
.products-page-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.product-detail-card {
    background: white;
    border: 1px solid var(--color-gray-2);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
}

.product-detail-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.product-detail-visual {
    height: 300px;
    display: flex;
    align-items: flex-end;
    justify-content: flex-start;
    position: relative;
    overflow: hidden;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.product-detail-visual .img-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 20%, rgba(10, 22, 40, 0.7) 100%);
    z-index: 1;
}

.product-detail-visual .img-label {
    position: relative;
    z-index: 2;
    padding: 20px 24px;
    color: #fff;
    font-size: 20px;
    font-weight: 700;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.product-detail-body {
    padding: 32px;
}

.product-detail-body .tag-row {
    display: flex;
    gap: 8px;
    margin-bottom: 14px;
}

.product-detail-body .tag-row .tag {
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 12px;
}

.product-detail-body .tag-primary {
    background: rgba(0, 82, 204, 0.08);
    color: var(--color-primary);
}

.product-detail-body .tag-accent {
    background: rgba(255, 107, 26, 0.1);
    color: var(--color-accent);
}

.product-detail-body h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 12px;
}

.product-detail-body .desc {
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 20px;
}

.product-spec-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 20px;
}

.product-spec-list li {
    font-size: 13px;
    color: var(--color-text-light);
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-spec-list li::before {
    content: '\2713';
    color: var(--color-success);
    font-weight: 700;
}

/* ============================================
   Capabilities Page
   ============================================ */
.equipment-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.equipment-card {
    background: white;
    border: 1px solid var(--color-gray-2);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all var(--transition);
}

.equipment-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
    transform: translateY(-3px);
}

.equipment-card .icon {
    width: 56px;
    height: 56px;
    background: rgba(0, 82, 204, 0.08);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    color: var(--color-primary);
    margin-bottom: 20px;
}

.equipment-photo {
    width: calc(100% + 64px);
    margin: -32px -32px 20px;
    height: 200px;
    overflow: hidden;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    position: relative;
    background: var(--color-gray-1);
}

.equipment-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.equipment-card:hover .equipment-photo img {
    transform: scale(1.06);
}

.equipment-photo .brand-badge {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(0, 82, 204, 0.92);
    color: white;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    letter-spacing: 0.5px;
    backdrop-filter: blur(4px);
}

.equipment-card .icon {
    width: 44px;
    height: 44px;
    margin-bottom: 14px;
}

.equipment-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 8px;
}

.equipment-card .model {
    font-size: 13px;
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: 12px;
}

.equipment-card p {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* Quality features */
.quality-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.quality-card {
    text-align: center;
    padding: 40px 28px;
}

.quality-card .num {
    font-size: 56px;
    font-weight: 800;
    background: var(--color-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 16px;
}

.quality-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 10px;
}

.quality-card p {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ============================================
   Contact Page
   ============================================ */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.contact-info-list {
    margin-bottom: 32px;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 24px;
    background: white;
    border: 1px solid var(--color-gray-2);
    border-radius: var(--radius-lg);
    margin-bottom: 16px;
    transition: all var(--transition);
}

.contact-info-item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.contact-info-item .icon {
    width: 48px;
    height: 48px;
    background: var(--color-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: white;
    flex-shrink: 0;
}

.contact-info-item .info h4 {
    font-size: 14px;
    color: var(--color-gray-5);
    margin-bottom: 4px;
    font-weight: 500;
}

.contact-info-item .info p {
    font-size: 16px;
    color: var(--color-text);
    font-weight: 600;
    line-height: 1.5;
}

.contact-info-item .info .sub {
    font-size: 13px;
    color: var(--color-text-light);
    font-weight: 400;
    margin-top: 4px;
}

/* Contact form */
.contact-form {
    background: white;
    border: 1px solid var(--color-gray-2);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.contact-form h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 8px;
}

.contact-form .sub-title {
    font-size: 14px;
    color: var(--color-text-light);
    margin-bottom: 28px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

.form-group label .required {
    color: var(--color-accent);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    font-family: inherit;
    border: 1.5px solid var(--color-gray-2);
    border-radius: var(--radius-sm);
    background: var(--color-gray-1);
    transition: all var(--transition);
    color: var(--color-text);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    background: white;
    box-shadow: 0 0 0 3px rgba(0, 82, 204, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-success {
    display: none;
    background: rgba(0, 184, 132, 0.08);
    border: 1px solid rgba(0, 184, 132, 0.3);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-bottom: 20px;
    font-size: 14px;
    color: var(--color-success);
    align-items: center;
    gap: 10px;
}

.form-success.show {
    display: flex;
}

/* Map */
.map-section {
    padding: 0;
}

.map-info-bar {
    background: white;
    padding: 16px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--color-gray-2);
    flex-wrap: wrap;
    gap: 12px;
}

.map-info-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.map-info-icon {
    width: 40px;
    height: 40px;
    background: rgba(0, 82, 204, 0.08);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    flex-shrink: 0;
}

.map-container {
    height: 450px;
    background: var(--color-gray-1);
    position: relative;
    overflow: hidden;
}

.map-container iframe {
    width: 100%;
    height: 100%;
}

.map-placeholder {
    text-align: center;
    color: var(--color-gray-5);
}

.map-placeholder .icon {
    font-size: 48px;
    margin-bottom: 16px;
    color: var(--color-primary);
}

.map-placeholder p {
    font-size: 16px;
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.6;
        transform: scale(1.2);
    }
}

/* Scroll animations */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero h1 {
        font-size: 42px;
    }

    .about-preview,
    .about-story,
    .contact-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .products-grid,
    .equipment-grid,
    .quality-grid,
    .culture-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .footer-main {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 24px;
        gap: 4px;
        box-shadow: var(--shadow-lg);
        transform: translateY(-200%);
        transition: transform var(--transition);
        max-height: calc(100vh - var(--header-height));
        overflow-y: auto;
    }

    .nav.open {
        transform: translateY(0);
    }

    .nav a {
        width: 100%;
        padding: 12px 16px;
    }

    .nav-cta {
        margin-left: 0;
        margin-top: 8px;
        text-align: center;
    }

    .menu-toggle {
        display: flex;
    }

    .hero h1 {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 15px;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: 24px;
    }

    .hero-stat .num {
        font-size: 28px;
    }

    .section {
        padding: 56px 0;
    }

    .section-header h2,
    .about-preview-content h2,
    .about-story-content h2 {
        font-size: 26px;
    }

    .cta-content h2 {
        font-size: 28px;
    }

    .trust-bar .container {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .products-grid,
    .products-page-grid,
    .equipment-grid,
    .quality-grid,
    .culture-grid,
    .advantages-grid,
    .about-features {
        grid-template-columns: 1fr;
    }

    .process-timeline {
        grid-template-columns: 1fr 1fr;
        gap: 32px 0;
    }

    .process-timeline::before {
        display: none;
    }

    .footer-main {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item,
    .timeline-item:nth-child(odd) {
        flex-direction: row;
        padding-left: 56px;
    }

    .timeline-item .timeline-content {
        width: 100%;
    }

    .timeline-item .timeline-dot {
        left: 20px;
    }

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

    .page-banner h1 {
        font-size: 30px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .btn {
        text-align: center;
        justify-content: center;
    }
}

/* ============================================
   Language Toggle
   ============================================ */
.lang-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 32px;
    margin-left: 8px;
    padding: 0;
    font-size: 13px;
    font-weight: 700;
    color: var(--color-primary);
    background: rgba(0, 82, 204, 0.08);
    border: 1.5px solid rgba(0, 82, 204, 0.2);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    font-family: inherit;
    letter-spacing: 0.5px;
    flex-shrink: 0;
}

.lang-toggle:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    transform: translateY(-1px);
}

.lang-toggle:active {
    transform: translateY(0);
}

/* Nav container adjustment for lang toggle */
.header .container .nav {
    gap: 2px;
}

@media (max-width: 768px) {
    .lang-toggle {
        position: fixed;
        top: 20px;
        right: 64px;
        z-index: 1001;
    }
}

/* ============================================
   Cases Grid (More Cases)
   ============================================ */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 48px;
}

.case-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-2);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition);
    cursor: pointer;
}

.case-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 12px 40px rgba(0,82,204,0.12);
    transform: translateY(-4px);
}

.case-image {
    width: 100%;
    height: 260px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
}

.case-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(10,22,40,0.5) 0%, transparent 60%);
}

.case-info {
    padding: 16px 20px;
}

.case-info h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text);
    margin: 0;
}

.cases-empty {
    font-size: 15px;
    color: var(--color-gray-3);
}

@media (max-width: 1024px) {
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .cases-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Industries Grid
   ============================================ */
.industries-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 48px;
}

.industry-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-2);
    border-radius: var(--radius-md);
    padding: 28px 24px;
    text-align: center;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.industry-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

.industry-card:hover {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.industry-card:hover::before {
    transform: scaleX(1);
}

.industry-card .ind-icon {
    width: 52px;
    height: 52px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: rgba(0, 82, 204, 0.08);
    color: var(--color-primary);
}

.industry-card h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 8px;
}

.industry-card p {
    font-size: 13px;
    color: var(--color-text-light);
    line-height: 1.6;
}

@media (max-width: 968px) {
    .industries-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .industries-grid {
        grid-template-columns: 1fr;
    }
}