/* ========================================
   芯科半导体 - SinoCore Semiconductor
   企业门户网站样式
   ======================================== */

/* ----- CSS Variables ----- */
:root {
    --primary: #0055ff;
    --primary-dark: #003dcc;
    --primary-light: #4d8aff;
    --secondary: #00d4aa;
    --accent: #ff6b35;
    --dark: #0a0f1e;
    --dark-2: #131a2d;
    --dark-3: #1a2340;
    --gray-100: #f0f4ff;
    --gray-200: #e8edf5;
    --gray-300: #c8d0e0;
    --gray-400: #8a95b0;
    --gray-500: #5a6580;
    --text: #1a1a2e;
    --text-light: #6b7280;
    --white: #ffffff;
    --gradient-1: linear-gradient(135deg, #0055ff 0%, #00d4aa 100%);
    --gradient-2: linear-gradient(135deg, #0a0f1e 0%, #1a2340 100%);
    --gradient-3: linear-gradient(135deg, #003dcc 0%, #4d8aff 100%);
    --shadow-sm: 0 2px 8px rgba(0, 85, 255, 0.08);
    --shadow-md: 0 8px 30px rgba(0, 85, 255, 0.12);
    --shadow-lg: 0 20px 60px rgba(0, 85, 255, 0.15);
    --shadow-glow: 0 0 30px rgba(0, 85, 255, 0.25);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    background: var(--white);
}

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 100px 0;
}

.highlight {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ----- Section Header ----- */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 20px;
    background: linear-gradient(135deg, rgba(0, 85, 255, 0.1), rgba(0, 212, 170, 0.1));
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 16px;
    border: 1px solid rgba(0, 85, 255, 0.15);
}

.section-header h2 {
    font-size: 2.6rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
    color: var(--dark);
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ----- Buttons ----- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn i {
    font-size: 0.9em;
    transition: transform 0.3s ease;
}

.btn:hover i {
    transform: translateX(4px);
}

.btn-primary {
    background: var(--gradient-1);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(0, 85, 255, 0.35);
}

.btn-primary:hover {
    box-shadow: 0 8px 30px rgba(0, 85, 255, 0.5);
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.btn-outline:hover {
    border-color: var(--white);
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.btn-large {
    padding: 18px 40px;
    font-size: 1.1rem;
}

.btn-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.95rem;
}

.btn-link i {
    transition: transform 0.3s ease;
}

.btn-link:hover i {
    transform: translateX(4px);
}

/* ========================================
   HEADER / NAVIGATION
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
    background: transparent;
}

.header.scrolled {
    background: rgba(10, 15, 30, 0.95);
    backdrop-filter: blur(20px);
    padding: 10px 0;
    box-shadow: 0 2px 30px rgba(0, 0, 0, 0.3);
}

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

.logo a {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 48px;
    height: 48px;
    display: block;
    object-fit: contain;
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 15px rgba(0, 85, 255, 0.3);
}

.logo-text h1 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1.2;
}

.logo-text span {
    font-size: 0.7rem;
    color: var(--gray-400);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-list a {
    padding: 10px 18px;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: 8px;
    transition: var(--transition);
    position: relative;
}

.nav-list a:hover,
.nav-list a.active {
    color: var(--white);
    background: rgba(255, 255, 255, 0.1);
}

.nav-list a.active::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    background: var(--gradient-1);
    border-radius: 3px;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.hamburger span {
    width: 28px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: var(--gradient-2);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(0, 85, 255, 0.15), transparent 60%),
        radial-gradient(ellipse at 80% 30%, rgba(0, 212, 170, 0.1), transparent 50%),
        radial-gradient(ellipse at 50% 80%, rgba(0, 85, 255, 0.08), transparent 40%);
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(2px 2px at 20px 30px, rgba(255,255,255,0.15), transparent),
        radial-gradient(2px 2px at 40px 70px, rgba(255,255,255,0.1), transparent),
        radial-gradient(2px 2px at 50px 160px, rgba(255,255,255,0.12), transparent),
        radial-gradient(2px 2px at 90px 40px, rgba(255,255,255,0.1), transparent),
        radial-gradient(2px 2px at 130px 80px, rgba(255,255,255,0.1), transparent);
    background-size: 200px 200px;
    animation: starMove 60s linear infinite;
    pointer-events: none;
}

@keyframes starMove {
    from { transform: translate(0, 0); }
    to { transform: translate(100px, 100px); }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 120px 0 60px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(0, 212, 170, 0.15);
    border: 1px solid rgba(0, 212, 170, 0.3);
    border-radius: 50px;
    color: var(--secondary);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 30px;
    backdrop-filter: blur(10px);
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.15;
    color: var(--white);
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.hero p {
    font-size: 1.15rem;
    color: var(--gray-400);
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    gap: 48px;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.stat-item {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 2px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
}

.stat-plus {
    font-size: 2rem;
    font-weight: 700;
    color: var(--secondary);
    margin-right: 4px;
}

.stat-label {
    width: 100%;
    font-size: 0.9rem;
    color: var(--gray-400);
    margin-top: 4px;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--gray-400);
    font-size: 0.8rem;
    letter-spacing: 1px;
    animation: bounce 2s infinite;
}

.scroll-indicator i {
    font-size: 1.2rem;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* ========================================
   ABOUT SECTION
   ======================================== */
.about {
    background: var(--white);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-1);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 40px;
}

.feature-card {
    display: flex;
    gap: 20px;
    padding: 24px;
    background: var(--gray-100);
    border-radius: var(--radius-md);
    transition: var(--transition);
    border: 1px solid transparent;
}

.feature-card:hover {
    border-color: rgba(0, 85, 255, 0.1);
    box-shadow: var(--shadow-sm);
    transform: translateX(4px);
}

.feature-icon {
    width: 52px;
    height: 52px;
    min-width: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(0, 85, 255, 0.1), rgba(0, 212, 170, 0.1));
    border-radius: var(--radius-sm);
    font-size: 1.3rem;
    color: var(--primary);
}

.feature-info h4 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--dark);
}

.feature-info p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.6;
}

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-img-container {
    position: relative;
    width: 420px;
    height: 420px;
    display: flex;
    align-items: center;
    justify-content: center;
    filter: drop-shadow(0 22px 45px rgba(0, 32, 96, 0.24));
}

.about-img-logo {
    width: 320px;
    height: 320px;
    object-fit: cover;
    position: absolute;
    z-index: 2;
    border-radius: 28px;
    border: 8px solid rgba(255, 255, 255, 0.92);
    box-shadow: 0 24px 50px rgba(0, 32, 96, 0.22);
    transform-origin: center;
}

.about-img-shape {
    width: 380px;
    height: 380px;
    border-radius: 32px;
    background: linear-gradient(135deg, rgba(0, 85, 255, 0.12), rgba(0, 212, 170, 0.14));
    border: 2px solid rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(8px);
    animation: aboutFrameSpin 24s linear infinite reverse;
}

.about-img-desc {
    position: absolute;
    left: 50%;
    bottom: 26px;
    transform: translateX(-50%);
    z-index: 3;
    width: 280px;
    margin: 0;
    padding: 14px 18px;
    border-radius: 18px;
    background: rgba(7, 22, 51, 0.78);
    color: var(--white);
    text-align: center;
    font-size: 0.95rem;
    line-height: 1.6;
    letter-spacing: 0.5px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.18);
}

@keyframes aboutFrameSpin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ========================================
   PRODUCTS SECTION
   ======================================== */
.products {
    background: var(--gray-100);
}

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

.product-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 36px 28px;
    transition: var(--transition);
    border: 1px solid var(--gray-200);
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-1);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

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

.product-card.featured {
    border-color: rgba(0, 85, 255, 0.2);
    box-shadow: var(--shadow-md);
}

.product-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 14px;
    background: linear-gradient(135deg, #ff6b35, #ff9a56);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 50px;
}

.product-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(0, 85, 255, 0.08), rgba(0, 212, 170, 0.08));
    border-radius: var(--radius-sm);
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.product-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}

.product-card > p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 20px;
}

.product-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 24px;
}

.product-list li {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.88rem;
    color: var(--text-light);
}

.product-list li i {
    color: var(--secondary);
    font-size: 0.8rem;
}

/* ========================================
   TECHNOLOGY SECTION
   ======================================== */
.technology {
    background: var(--dark);
    position: relative;
    overflow: hidden;
}

.technology::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 85, 255, 0.08), transparent);
    border-radius: 50%;
}

.technology .section-tag {
    background: linear-gradient(135deg, rgba(0, 85, 255, 0.2), rgba(0, 212, 170, 0.2));
    border-color: rgba(0, 85, 255, 0.3);
}

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

.technology .section-header p {
    color: var(--gray-400);
}

.tech-timeline {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
    padding-left: 40px;
}

.tech-timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary), var(--secondary));
}

.tech-item {
    position: relative;
    padding: 24px 0 24px 40px;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.tech-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.tech-year {
    position: absolute;
    left: -40px;
    top: 24px;
    width: 32px;
    height: 32px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 0.7rem;
    font-weight: 700;
    z-index: 1;
    box-shadow: 0 0 20px rgba(0, 85, 255, 0.4);
}

.tech-content h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 8px;
}

.tech-content p {
    font-size: 0.95rem;
    color: var(--gray-400);
    line-height: 1.7;
}

/* ========================================
   NEWS SECTION
   ======================================== */
.news {
    background: var(--white);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-card {
    background: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--gray-200);
}

.news-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.news-image {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(0, 85, 255, 0.05), rgba(0, 212, 170, 0.05));
    position: relative;
    font-size: 3rem;
    color: var(--primary);
    opacity: 0.3;
}

.news-date {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--white);
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.news-date .day {
    display: block;
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}

.news-date .month {
    font-size: 0.7rem;
    color: var(--text-light);
    font-weight: 500;
}

.news-content {
    padding: 24px;
}

.news-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(0, 85, 255, 0.08);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 4px;
    margin-bottom: 12px;
}

.news-content h3 {
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 12px;
    color: var(--dark);
}

.news-content p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 16px;
}

.news-more {
    text-align: center;
    margin-top: 50px;
}

/* ========================================
   CTA SECTION
   ======================================== */
.cta {
    background: var(--gradient-2);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 85, 255, 0.12), transparent);
    border-radius: 50%;
}

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

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 1.1rem;
    color: var(--gray-400);
    margin-bottom: 36px;
}

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

/* ========================================
   CONTACT SECTION
   ======================================== */
.contact {
    background: var(--gray-100);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 50px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.contact-item {
    display: flex;
    gap: 16px;
}

.contact-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(0, 85, 255, 0.1), rgba(0, 212, 170, 0.1));
    border-radius: var(--radius-sm);
    color: var(--primary);
    font-size: 1.1rem;
}

.contact-detail h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--dark);
}

.contact-detail p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.6;
}

.contact-social {
    padding-top: 20px;
    border-top: 1px solid var(--gray-200);
}

.contact-social h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--dark);
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border-radius: 50%;
    color: var(--gray-500);
    font-size: 1.2rem;
    transition: var(--transition);
    border: 1px solid var(--gray-200);
}

.social-link:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 85, 255, 0.25);
}

/* ----- Contact Form ----- */
.contact-form {
    background: var(--white);
    padding: 36px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
}

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

.form-group {
    position: relative;
}

.form-group i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    font-size: 0.9rem;
    pointer-events: none;
}

.form-group.full {
    margin-bottom: 16px;
}

.form-group.full i {
    top: 20px;
    transform: none;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px 14px 44px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    color: var(--text);
    background: var(--white);
    transition: var(--transition);
    font-family: inherit;
}

.form-group select {
    appearance: none;
    cursor: pointer;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 85, 255, 0.1);
}

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

.btn-submit {
    width: 100%;
    justify-content: center;
    padding: 16px;
    font-size: 1.05rem;
}

.contact-map-card {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.map-header h3 {
    font-size: 1.5rem;
    color: var(--dark);
    margin-bottom: 10px;
}

.map-header p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.8;
}

.map-preview {
    min-height: 260px;
    border-radius: var(--radius-md);
    background:
        linear-gradient(135deg, rgba(0, 85, 255, 0.08), rgba(0, 212, 170, 0.12)),
        radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.75), transparent 30%);
    border: 1px solid rgba(0, 85, 255, 0.12);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 28px;
}

.map-preview-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-1);
    color: var(--white);
    font-size: 1.8rem;
    margin-bottom: 18px;
    box-shadow: 0 14px 28px rgba(0, 85, 255, 0.22);
}

.map-preview strong {
    font-size: 1.08rem;
    color: var(--dark);
    margin-bottom: 8px;
}

.map-preview span {
    font-size: 0.9rem;
    color: var(--text-light);
}

.map-actions {
    display: flex;
    gap: 14px;
}

.map-actions .btn {
    flex: 1;
    justify-content: center;
}

.map-outline-btn {
    background: transparent;
    color: var(--primary);
    border: 2px solid rgba(0, 85, 255, 0.2);
}

.map-outline-btn:hover {
    background: rgba(0, 85, 255, 0.06);
    border-color: var(--primary);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--dark-2);
    padding: 80px 0 0;
    color: var(--gray-300);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 16px;
}

.footer-logo-image {
    width: 42px;
    height: 42px;
    object-fit: contain;
    border-radius: var(--radius-sm);
}

.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 20px;
    color: var(--gray-400);
}

.footer-social {
    display: flex;
    gap: 10px;
}

.footer-social a {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 50%;
    color: var(--gray-400);
    font-size: 1rem;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-3px);
}

.footer-links h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 0.9rem;
    color: var(--gray-400);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary);
    padding-left: 4px;
}

.footer-bottom {
    padding: 24px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 0.85rem;
    color: var(--gray-400);
    text-align: center;
}

.footer-bottom a {
    color: var(--gray-400);
}

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

.separator {
    margin: 0 12px;
    opacity: 0.3;
}

/* ========================================
   BACK TO TOP
   ======================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-1);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(0, 85, 255, 0.35);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 85, 255, 0.5);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

/* Large tablets */
@media (max-width: 1024px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero h1 {
        font-size: 3.2rem;
    }
}

/* Tablets */
@media (max-width: 768px) {
    .section-padding {
        padding: 70px 0;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    /* Navigation */
    .nav-list {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--dark-2);
        flex-direction: column;
        padding: 80px 32px 32px;
        gap: 8px;
        transition: 0.4s ease;
        z-index: 100;
    }

    .nav-list.active {
        right: 0;
    }

    .nav-list a {
        width: 100%;
        font-size: 1.1rem;
    }

    .hamburger {
        display: flex;
        z-index: 101;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    /* Hero */
    .hero h1 {
        font-size: 2.5rem;
    }

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

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

    /* About */
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-img-container {
        width: 280px;
        height: 280px;
    }

    .about-img-logo {
        width: 220px;
        height: 220px;
        border-width: 6px;
        border-radius: 22px;
    }

    .about-img-shape {
        width: 250px;
        height: 250px;
    }

    .about-img-desc {
        width: 220px;
        bottom: 18px;
        padding: 10px 14px;
        font-size: 0.78rem;
        line-height: 1.5;
    }

    /* Products */
    .product-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    /* News */
    .news-grid {
        grid-template-columns: 1fr;
        max-width: 450px;
        margin: 0 auto;
    }

    /* CTA */
    .cta-content h2 {
        font-size: 2rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    /* Contact */
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 30px;
    }

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

    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}

/* Mobile */
@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

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

    .section-header h2 {
        font-size: 1.7rem;
    }

    .contact-form {
        padding: 24px;
    }

    .btn-large {
        padding: 14px 28px;
        font-size: 1rem;
    }
}

/* ========================================
   ANIMATIONS
   ======================================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   LOADING SPINNER (for form)
   ======================================== */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--white);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ========================================
   SUCCESS TOAST
   ======================================== */
.toast {
    position: fixed;
    top: 100px;
    right: 30px;
    padding: 16px 24px;
    background: var(--white);
    border-radius: var(--radius-sm);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    font-weight: 500;
    transform: translateX(120%);
    transition: transform 0.4s ease;
    z-index: 1001;
    border-left: 4px solid var(--secondary);
}

.toast.show {
    transform: translateX(0);
}

.toast i {
    color: var(--secondary);
    font-size: 1.2rem;
}

/* ========================================
   DETAIL PAGES
   ======================================== */
.page-hero {
    padding: 180px 0 90px;
    background: var(--gradient-2);
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 15% 30%, rgba(0, 85, 255, 0.16), transparent 36%),
        radial-gradient(circle at 85% 20%, rgba(0, 212, 170, 0.14), transparent 30%);
}

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

.breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--gray-400);
    font-size: 0.9rem;
    margin-bottom: 24px;
}

.breadcrumb a:hover {
    color: var(--white);
}

.page-hero h1 {
    font-size: 3.4rem;
    line-height: 1.15;
    color: var(--white);
    margin-bottom: 18px;
}

.page-hero p {
    max-width: 760px;
    color: var(--gray-400);
    font-size: 1.08rem;
    line-height: 1.8;
}

.anchor-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 34px;
}

.anchor-nav a {
    padding: 10px 18px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.anchor-nav a:hover {
    background: rgba(255, 255, 255, 0.14);
}

.detail-section {
    padding: 90px 0;
}

.detail-section.alt {
    background: var(--gray-100);
}

.split-layout {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 42px;
    align-items: center;
}

.detail-copy h2,
.detail-section h2 {
    font-size: 2.2rem;
    margin-bottom: 16px;
    color: var(--dark);
}

.detail-copy p,
.detail-section p.lead {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 1rem;
}

.detail-copy p + p {
    margin-top: 14px;
}

.detail-image-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 16px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
}

.detail-image-card img {
    width: 100%;
    border-radius: calc(var(--radius-lg) - 6px);
    display: block;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

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

.detail-grid.four-col {
    grid-template-columns: repeat(4, 1fr);
}

.detail-card,
.metric-card,
.industry-card,
.timeline-card,
.certificate-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: 28px 24px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.detail-card:hover,
.metric-card:hover,
.industry-card:hover,
.timeline-card:hover,
.certificate-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.detail-card h3,
.metric-card h3,
.industry-card h3,
.timeline-card h3,
.certificate-card h3 {
    font-size: 1.15rem;
    margin-bottom: 12px;
    color: var(--dark);
}

.detail-card p,
.metric-card p,
.industry-card p,
.timeline-card p,
.certificate-card p {
    color: var(--text-light);
    font-size: 0.94rem;
    line-height: 1.75;
}

.detail-card ul,
.metric-card ul,
.industry-card ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 16px;
}

.detail-card li,
.metric-card li,
.industry-card li {
    color: var(--text-light);
    font-size: 0.9rem;
    display: flex;
    gap: 10px;
}

.detail-card li i,
.metric-card li i,
.industry-card li i {
    color: var(--secondary);
    margin-top: 4px;
}

.metric-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 12px;
}

.timeline-stack {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.timeline-card {
    display: grid;
    grid-template-columns: 88px 1fr;
    gap: 18px;
    align-items: start;
}

.timeline-year {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 48px;
    border-radius: 14px;
    background: var(--gradient-1);
    color: var(--white);
    font-weight: 800;
    font-size: 1rem;
}

.process-flow {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

.process-step {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: 22px 18px;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.process-step i {
    font-size: 1.6rem;
    color: var(--primary);
    margin-bottom: 14px;
}

.process-step strong {
    display: block;
    font-size: 1rem;
    color: var(--dark);
    margin-bottom: 8px;
}

.process-step span {
    display: block;
    color: var(--text-light);
    font-size: 0.88rem;
}

.package-gallery,
.certificate-grid,
.equipment-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.package-item,
.certificate-item,
.equipment-item {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.package-item img,
.certificate-item img,
.equipment-item img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
    background: var(--gray-100);
}

.package-item .content,
.certificate-item .content,
.equipment-item .content {
    padding: 20px;
}

.capability-table {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.capability-block {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: 26px 24px;
    box-shadow: var(--shadow-sm);
}

.capability-block h3 {
    font-size: 1.12rem;
    color: var(--dark);
    margin-bottom: 14px;
}

.capability-block dl {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 10px 16px;
}

.capability-block dt {
    color: var(--text-light);
    font-size: 0.92rem;
}

.capability-block dd {
    color: var(--dark);
    font-size: 0.92rem;
    font-weight: 600;
}

.page-cta {
    background: var(--gradient-2);
    color: var(--white);
    padding: 70px 0;
}

.page-cta .cta-content p {
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 1024px) {
    .detail-grid,
    .package-gallery,
    .certificate-grid,
    .equipment-grid,
    .detail-grid.four-col,
    .process-flow {
        grid-template-columns: repeat(2, 1fr);
    }

    .split-layout,
    .capability-table {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .page-hero {
        padding: 150px 0 70px;
    }

    .page-hero h1 {
        font-size: 2.4rem;
    }

    .detail-grid,
    .detail-grid.two-col,
    .package-gallery,
    .certificate-grid,
    .equipment-grid,
    .process-flow {
        grid-template-columns: 1fr;
    }

    .timeline-card {
        grid-template-columns: 1fr;
    }
}