/* ===== 全局重置 & 变量 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: #0f0f1a;
    color: #e0e0e0;
    line-height: 1.7;
    overflow-x: hidden;
    transition: background 0.3s, color 0.3s;
}
body.light {
    background: #f8f9fa;
    color: #2d2d3a;
}
a {
    color: #f5b041;
    text-decoration: none;
    transition: color 0.3s;
}
a:hover {
    color: #d4a017;
}
img {
    max-width: 100%;
    display: block;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
.glass {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}
body.light .glass {
    background: rgba(255, 255, 255, 0.7);
    border-color: rgba(0, 0, 0, 0.08);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}
.btn {
    display: inline-block;
    padding: 14px 36px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: all 0.3s;
    background: linear-gradient(135deg, #f5b041, #d4a017);
    color: #1a1a2e;
    box-shadow: 0 4px 15px rgba(245, 176, 65, 0.3);
}
.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(245, 176, 65, 0.5);
}
body.light .btn {
    color: #fff;
    background: linear-gradient(135deg, #f5b041, #d4a017);
}
.section {
    padding: 80px 0;
}
.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #f5b041, #d4a017);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.section-subtitle {
    text-align: center;
    color: #a0a0b0;
    font-size: 1.1rem;
    margin-bottom: 60px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}
body.light .section-subtitle {
    color: #666;
}
.grid {
    display: grid;
    gap: 30px;
}
.flex {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 30px;
}
.text-center {
    text-align: center;
}
.mt-20 {
    margin-top: 20px;
}
.mb-20 {
    margin-bottom: 20px;
}
.hidden {
    display: none;
}
@media (max-width: 768px) {
    .section {
        padding: 50px 0;
    }
    .section-title {
        font-size: 2rem;
    }
}

/* ===== 导航栏 ===== */
nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 15px 0;
    transition: all 0.3s;
}
nav.scrolled {
    background: rgba(15, 15, 26, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}
body.light nav.scrolled {
    background: rgba(255, 255, 255, 0.95);
}
nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.nav-logo {
    font-size: 1.6rem;
    font-weight: 800;
    color: #f5b041;
    display: flex;
    align-items: center;
    gap: 10px;
}
.nav-logo svg {
    width: 40px;
    height: 40px;
}
.nav-links {
    display: flex;
    gap: 25px;
    list-style: none;
    align-items: center;
}
.nav-links a {
    color: #e0e0e0;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 6px 0;
    position: relative;
}
body.light .nav-links a {
    color: #2d2d3a;
}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: #f5b041;
    transition: width 0.3s;
}
.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}
.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
    background: none;
    border: none;
    padding: 5px;
}
.nav-toggle span {
    width: 28px;
    height: 3px;
    background: #f5b041;
    border-radius: 3px;
    transition: all 0.3s;
}
.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}
.dark-toggle {
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #f5b041;
    padding: 8px 14px;
    border-radius: 30px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s;
}
body.light .dark-toggle {
    border-color: rgba(0, 0, 0, 0.15);
}
.dark-toggle:hover {
    background: rgba(245, 176, 65, 0.15);
}
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(20, 20, 35, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        gap: 20px;
        transition: right 0.4s;
        padding: 40px;
        border-left: 1px solid rgba(255, 255, 255, 0.05);
    }
    body.light .nav-links {
        background: rgba(255, 255, 255, 0.98);
    }
    .nav-links.open {
        right: 0;
    }
    .nav-toggle {
        display: flex;
    }
}

/* ===== Hero ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #0f0f1a 0%, #1a1a2e 50%, #16213e 100%);
}
body.light .hero {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef, #dee2e6);
}
.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}
.hero-bg span {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(245, 176, 65, 0.15), transparent 70%);
    animation: float 20s infinite ease-in-out;
}
.hero-bg span:nth-child(1) {
    width: 500px;
    height: 500px;
    top: -100px;
    left: -100px;
    animation-delay: 0s;
}
.hero-bg span:nth-child(2) {
    width: 400px;
    height: 400px;
    bottom: -80px;
    right: -80px;
    animation-delay: -5s;
}
.hero-bg span:nth-child(3) {
    width: 300px;
    height: 300px;
    top: 40%;
    left: 60%;
    animation-delay: -10s;
}
@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    50% {
        transform: translate(30px, -30px) scale(1.1);
    }
}
.hero .container {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 120px 20px 60px;
}
.hero h1 {
    font-size: 3.8rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #f5b041, #d4a017, #f5b041);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
body.light .hero h1 {
    background: linear-gradient(135deg, #c0392b, #e67e22);
    -webkit-background-clip: text;
    background-clip: text;
}
.hero p {
    font-size: 1.3rem;
    color: #b0b0c0;
    max-width: 750px;
    margin: 0 auto 40px;
}
body.light .hero p {
    color: #555;
}
.hero .btn-group {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}
.hero .btn-outline {
    background: transparent;
    border: 2px solid #f5b041;
    color: #f5b041;
    box-shadow: none;
}
.hero .btn-outline:hover {
    background: #f5b041;
    color: #1a1a2e;
}
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 50px;
    margin-top: 60px;
    flex-wrap: wrap;
}
.hero-stat {
    text-align: center;
}
.hero-stat .num {
    font-size: 2.5rem;
    font-weight: 800;
    color: #f5b041;
}
.hero-stat .label {
    color: #a0a0b0;
    font-size: 0.95rem;
}
body.light .hero-stat .label {
    color: #666;
}
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.4rem;
    }
    .hero p {
        font-size: 1.1rem;
    }
    .hero-stats {
        gap: 30px;
    }
}

/* ===== About ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}
@media (max-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
}
.about-text h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: #f5b041;
}
.about-text p {
    margin-bottom: 15px;
    color: #c0c0d0;
}
body.light .about-text p {
    color: #444;
}
.about-image {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    min-height: 350px;
    background: linear-gradient(135deg, rgba(245, 176, 65, 0.2), rgba(212, 160, 23, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 6rem;
    color: rgba(245, 176, 65, 0.3);
}

/* ===== Timeline ===== */
.timeline {
    position: relative;
    padding: 20px 0;
}
.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, #f5b041, transparent);
    transform: translateX(-50%);
}
@media (max-width: 768px) {
    .timeline::before {
        left: 20px;
    }
}
.timeline-item {
    display: flex;
    justify-content: flex-end;
    padding: 30px 0;
    position: relative;
    width: 50%;
}
@media (max-width: 768px) {
    .timeline-item {
        width: 100%;
        padding-left: 50px;
        justify-content: flex-start;
    }
}
.timeline-item:nth-child(even) {
    align-self: flex-end;
    justify-content: flex-start;
    margin-left: 50%;
}
@media (max-width: 768px) {
    .timeline-item:nth-child(even) {
        margin-left: 0;
    }
}
.timeline-item .content {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    padding: 25px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    max-width: 400px;
}
body.light .timeline-item .content {
    background: rgba(255, 255, 255, 0.8);
    border-color: rgba(0, 0, 0, 0.06);
}
.timeline-item .year {
    font-size: 1.2rem;
    font-weight: 700;
    color: #f5b041;
    margin-bottom: 8px;
}
.timeline-item h3 {
    font-size: 1.2rem;
    margin-bottom: 6px;
}
.timeline-item p {
    font-size: 0.95rem;
    color: #b0b0c0;
}
body.light .timeline-item p {
    color: #555;
}
.timeline-item .dot {
    position: absolute;
    top: 40px;
    width: 16px;
    height: 16px;
    background: #f5b041;
    border-radius: 50%;
    border: 3px solid #0f0f1a;
    z-index: 2;
}
@media (max-width: 768px) {
    .timeline-item .dot {
        left: 12px;
    }
}
.timeline-item:nth-child(odd) .dot {
    right: -8px;
}
@media (max-width: 768px) {
    .timeline-item:nth-child(odd) .dot {
        right: auto;
        left: 12px;
    }
}
.timeline-item:nth-child(even) .dot {
    left: -8px;
}
@media (max-width: 768px) {
    .timeline-item:nth-child(even) .dot {
        left: 12px;
    }
}

/* ===== Products ===== */
.product-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.product-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.4s;
    text-align: center;
}
body.light .product-card {
    background: rgba(255, 255, 255, 0.7);
    border-color: rgba(0, 0, 0, 0.06);
}
.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}
.product-card .icon {
    font-size: 3rem;
    margin-bottom: 15px;
    color: #f5b041;
}
.product-card h3 {
    font-size: 1.4rem;
    margin-bottom: 10px;
}
.product-card p {
    color: #b0b0c0;
    font-size: 0.95rem;
}
body.light .product-card p {
    color: #555;
}

/* ===== Features ===== */
.features-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}
.feature-item {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 16px;
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s;
}
body.light .feature-item {
    background: rgba(255, 255, 255, 0.5);
    border-color: rgba(0, 0, 0, 0.04);
}
.feature-item:hover {
    border-color: #f5b041;
}
.feature-item .num {
    font-size: 2rem;
    font-weight: 800;
    color: #f5b041;
    margin-bottom: 10px;
}
.feature-item h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
}
.feature-item p {
    color: #a0a0b0;
    font-size: 0.95rem;
}
body.light .feature-item p {
    color: #555;
}

/* ===== Solutions ===== */
.solutions-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}
.solution-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 35px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}
body.light .solution-card {
    background: rgba(255, 255, 255, 0.7);
    border-color: rgba(0, 0, 0, 0.06);
}
.solution-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, #f5b041, #d4a017);
    border-radius: 0 4px 4px 0;
}
.solution-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
}
.solution-card p {
    color: #b0b0c0;
    font-size: 0.95rem;
    margin-bottom: 15px;
}
body.light .solution-card p {
    color: #555;
}
.solution-card .tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(245, 176, 65, 0.15);
    border-radius: 20px;
    font-size: 0.8rem;
    color: #f5b041;
}

/* ===== Partners ===== */
.partner-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    align-items: center;
}
.partner-item {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 25px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: all 0.3s;
    font-size: 1.1rem;
    font-weight: 600;
    color: #a0a0b0;
}
body.light .partner-item {
    background: rgba(255, 255, 255, 0.5);
    border-color: rgba(0, 0, 0, 0.04);
    color: #666;
}
.partner-item:hover {
    color: #f5b041;
    border-color: #f5b041;
}

/* ===== Testimonials ===== */
.testimonial-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}
.testimonial-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, 0.08);
}
body.light .testimonial-card {
    background: rgba(255, 255, 255, 0.7);
    border-color: rgba(0, 0, 0, 0.06);
}
.testimonial-card .stars {
    color: #f5b041;
    font-size: 1.2rem;
    margin-bottom: 12px;
}
.testimonial-card p {
    color: #c0c0d0;
    font-style: italic;
    margin-bottom: 15px;
}
body.light .testimonial-card p {
    color: #444;
}
.testimonial-card .author {
    font-weight: 700;
    color: #f5b041;
}
.testimonial-card .role {
    font-size: 0.9rem;
    color: #a0a0b0;
}
body.light .testimonial-card .role {
    color: #666;
}

/* ===== News ===== */
.news-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}
.news-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.3s;
}
body.light .news-card {
    background: rgba(255, 255, 255, 0.7);
    border-color: rgba(0, 0, 0, 0.06);
}
.news-card:hover {
    transform: translateY(-5px);
}
.news-card .image {
    height: 200px;
    background: linear-gradient(135deg, rgba(245, 176, 65, 0.2), rgba(212, 160, 23, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: rgba(245, 176, 65, 0.2);
}
.news-card .body {
    padding: 25px;
}
.news-card .date {
    font-size: 0.85rem;
    color: #a0a0b0;
    margin-bottom: 8px;
}
body.light .news-card .date {
    color: #888;
}
.news-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}
.news-card p {
    color: #b0b0c0;
    font-size: 0.95rem;
}
body.light .news-card p {
    color: #555;
}

/* ===== FAQ ===== */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    margin-bottom: 15px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    overflow: hidden;
    transition: all 0.3s;
}
body.light .faq-item {
    background: rgba(255, 255, 255, 0.5);
    border-color: rgba(0, 0, 0, 0.04);
}
.faq-question {
    padding: 20px 25px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 1.05rem;
    transition: background 0.3s;
}
.faq-question:hover {
    background: rgba(245, 176, 65, 0.05);
}
.faq-question .icon {
    font-size: 1.3rem;
    transition: transform 0.3s;
    color: #f5b041;
}
.faq-item.active .faq-question .icon {
    transform: rotate(45deg);
}
.faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.4s;
    color: #b0b0c0;
    font-size: 0.95rem;
}
body.light .faq-answer {
    color: #555;
}
.faq-item.active .faq-answer {
    padding: 0 25px 20px;
    max-height: 300px;
}

/* ===== HowTo ===== */
.howto-steps {
    max-width: 700px;
    margin: 0 auto;
}
.howto-step {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    align-items: flex-start;
}
.howto-step .num {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: linear-gradient(135deg, #f5b041, #d4a017);
    color: #1a1a2e;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.2rem;
    flex-shrink: 0;
}
.howto-step h3 {
    font-size: 1.2rem;
    margin-bottom: 5px;
}
.howto-step p {
    color: #a0a0b0;
    font-size: 0.95rem;
}
body.light .howto-step p {
    color: #555;
}

/* ===== Contact ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}
@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}
.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #f5b041;
}
.contact-info p {
    color: #b0b0c0;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}
body.light .contact-info p {
    color: #555;
}
.contact-info .icon {
    color: #f5b041;
    font-size: 1.3rem;
}
.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 14px 18px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
    color: #e0e0e0;
    font-size: 1rem;
    margin-bottom: 15px;
    transition: border 0.3s;
}
body.light .contact-form input,
body.light .contact-form textarea {
    background: rgba(255, 255, 255, 0.8);
    border-color: rgba(0, 0, 0, 0.1);
    color: #2d2d3a;
}
.contact-form input:focus,
.contact-form textarea:focus {
    border-color: #f5b041;
    outline: none;
}
.contact-form textarea {
    min-height: 120px;
    resize: vertical;
}

/* ===== Footer ===== */
footer {
    background: rgba(255, 255, 255, 0.02);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 60px 0 30px;
}
body.light footer {
    background: rgba(0, 0, 0, 0.02);
    border-color: rgba(0, 0, 0, 0.05);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
}
@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}
.footer-col h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: #f5b041;
}
.footer-col p,
.footer-col a {
    color: #a0a0b0;
    font-size: 0.95rem;
    display: block;
    margin-bottom: 10px;
    transition: color 0.3s;
}
body.light .footer-col p,
body.light .footer-col a {
    color: #666;
}
.footer-col a:hover {
    color: #f5b041;
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: 40px;
    padding-top: 30px;
    text-align: center;
    color: #888;
    font-size: 0.9rem;
}
body.light .footer-bottom {
    border-color: rgba(0, 0, 0, 0.05);
}
.footer-bottom a {
    color: #a0a0b0;
    margin: 0 10px;
}
body.light .footer-bottom a {
    color: #666;
}
.footer-bottom a:hover {
    color: #f5b041;
}

/* ===== Back to top ===== */
.back-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #f5b041, #d4a017);
    color: #1a1a2e;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 999;
    box-shadow: 0 4px 15px rgba(245, 176, 65, 0.3);
}
.back-top.visible {
    opacity: 1;
    visibility: visible;
}
.back-top:hover {
    transform: translateY(-5px);
}

/* ===== Dark mode transition ===== */
body.light .glass,
.product-card,
.feature-item,
.solution-card,
.partner-item,
.testimonial-card,
.news-card,
.faq-item,
.timeline-item .content,
.contact-form input,
.contact-form textarea {
    transition: all 0.3s;
}

/* ===== Animation classes ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Search ===== */
.search-box {
    display: flex;
    max-width: 400px;
    margin: 0 auto 40px;
    position: relative;
}
.search-box input {
    width: 100%;
    padding: 14px 18px;
    border-radius: 50px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
    color: #e0e0e0;
    font-size: 1rem;
    padding-right: 50px;
}
body.light .search-box input {
    background: rgba(255, 255, 255, 0.8);
    border-color: rgba(0, 0, 0, 0.1);
    color: #2d2d3a;
}
.search-box button {
    position: absolute;
    right: 5px;
    top: 5px;
    bottom: 5px;
    width: 45px;
    border-radius: 50%;
    border: none;
    background: #f5b041;
    color: #1a1a2e;
    font-size: 1.2rem;
    cursor: pointer;
}

/* ===== Banner slider ===== */
.banner-slider {
    position: relative;
    overflow: hidden;
    border-radius: 20px;
    min-height: 400px;
    margin-bottom: 40px;
}
.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 40px;
    text-align: center;
    background: linear-gradient(135deg, rgba(245, 176, 65, 0.1), rgba(212, 160, 23, 0.05));
}
.banner-slide.active {
    opacity: 1;
}
.banner-slide h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 15px;
    color: #f5b041;
}
.banner-slide p {
    color: #c0c0d0;
    max-width: 600px;
    font-size: 1.1rem;
}
body.light .banner-slide p {
    color: #555;
}
.banner-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}
.banner-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    cursor: pointer;
    transition: all 0.3s;
}
body.light .banner-dots span {
    background: rgba(0, 0, 0, 0.15);
}
.banner-dots span.active {
    background: #f5b041;
    width: 30px;
    border-radius: 6px;
}

/* ===== Responsive ===== */
@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    .section-title {
        font-size: 1.7rem;
    }
    .banner-slide h2 {
        font-size: 1.8rem;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
}