:root {
    --primary-blue: #1e90ff;
    --secondary-blue: #4da6ff;
    --accent-blue: #87cefa;
    --light-gray: #f5f5f5;
    --white: #ffffff;
    --dopamine-yellow: #ffd700;
    --dopamine-orange: #ffa500;
    --dopamine-green: #32cd32;
    --dopamine-pink: #ff69b4;
    --dopamine-purple: #9370db;
}

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    background-color: var(--white);
    color: #333;
    line-height: 1.6;
    overflow-x: hidden;
}

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

.navbar {
    background-color: var(--primary-blue);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar-brand img {
    max-height: 50px;
    width: auto;
}

.navbar-nav .nav-link {
    color: var(--white) !important;
    font-weight: 500;
    margin: 0 4px;
    padding: 0.5rem 0.65rem !important;
    transition: color 0.3s;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus {
    color: var(--dopamine-yellow) !important;
}

.navbar-toggler {
    border-color: rgba(255, 255, 255, 0.55);
    padding: 0.35rem 0.55rem;
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 0.2rem rgba(255, 215, 0, 0.35);
}

.navbar-toggler-icon {
    filter: invert(1);
}

.top-banner {
    background: linear-gradient(135deg, var(--primary-blue), var(--dopamine-purple));
    color: var(--white);
    padding: 40px 0;
    text-align: center;
}

.top-banner h1 {
    word-break: break-word;
}

.section-title {
    color: var(--primary-blue);
    border-bottom: 3px solid var(--dopamine-yellow);
    padding-bottom: 10px;
    margin-bottom: 30px;
    font-weight: bold;
    word-break: break-word;
}

.service-card {
    border: none;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s, box-shadow 0.3s;
    background-color: var(--white);
    margin-bottom: 20px;
}

.service-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
}

.service-icon {
    font-size: 3rem;
    color: var(--dopamine-green);
    margin-bottom: 15px;
}

.partner-logo-wall {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.partner-logo-wall img {
    max-height: 80px;
    width: auto;
    filter: grayscale(0%);
    transition: filter 0.3s;
}

.stats-box {
    background: linear-gradient(to right, var(--accent-blue), var(--dopamine-pink));
    color: var(--white);
    padding: 24px 16px;
    border-radius: 20px;
    text-align: center;
    margin-bottom: 20px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.stats-number {
    font-size: clamp(2rem, 8vw, 3.5rem);
    font-weight: bold;
    color: var(--dopamine-yellow);
    line-height: 1.1;
}

.case-card {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

.case-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.feedback-carousel-item {
    background-color: var(--light-gray);
    border-radius: 20px;
    padding: 24px 18px;
    text-align: center;
    margin: 12px 0;
}

.feedback-emoji {
    font-size: 2rem;
    margin-bottom: 15px;
}

.calendar-filter {
    background-color: var(--light-gray);
    padding: 16px;
    border-radius: 15px;
    margin-bottom: 20px;
}

.calendar-filter .form-control,
.calendar-filter .form-select {
    min-height: 44px;
    font-size: 16px;
}

.news-list-item {
    border-left: 5px solid var(--dopamine-orange);
    padding-left: 16px;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid #eee;
}

.news-list-item h5 {
    font-size: 1.05rem;
    line-height: 1.45;
}

.footer {
    background-color: var(--primary-blue);
    color: var(--white);
    padding: 32px 0 20px;
}

.footer a {
    color: var(--dopamine-yellow);
    text-decoration: none;
}

.footer a:hover {
    color: var(--white);
    text-decoration: underline;
}

.btn-custom {
    background-color: var(--dopamine-orange);
    color: var(--white);
    border: none;
    border-radius: 25px;
    padding: 10px 22px;
    font-weight: bold;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s;
}

.btn-custom:hover {
    background-color: var(--dopamine-yellow);
    color: #333;
}

.img-fluid {
    object-fit: cover;
}

@media (max-width: 991.98px) {
    .top-banner {
        padding: 28px 0;
    }

    .top-banner .display-4 {
        font-size: clamp(1.35rem, 5.5vw, 2rem);
    }

    .top-banner .lead {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.35rem;
        margin-bottom: 20px;
    }

    .partner-logo-wall img {
        max-height: 56px;
    }

    .case-card img {
        height: 160px;
    }

    #news .col-md-4 img {
        margin-top: 1rem;
    }
}

@media (max-width: 575.98px) {
    .navbar-brand img {
        max-height: 38px;
    }

    .service-icon {
        font-size: 2.25rem;
    }

    .stats-box {
        padding: 18px 12px;
    }

    .news-list-item {
        padding-left: 12px;
    }

    .container {
        padding-left: 14px;
        padding-right: 14px;
    }
}