/* ============================================
   Empower U Service - Australian Green & Gold Theme
   Inspired by the Socceroos (Australia National Team)
   Primary:   #00843D (Australian Green)
   Secondary: #FFD200 / #F5A623 (Gold / Amber)
   ============================================ */

:root {
    --green:        #00843D;  /* 主色：澳洲绿 */
    --green-dark:   #006B31;  /* 深绿（hover / 渐变） */
    --green-darker: #004D23;  /* 更深绿（footer 等） */
    --gold:         #FFD200;  /* 次色：金黄（Socceroos 黄） */
    --gold-dark:    #E6B800;  /* 深金（hover） */
    --amber:        #F5A623;  /* 备用暖金，用于渐变叠加 */
    --text:         #1f2937;
    --text-light:   #6b7280;
    --bg-light:     #f4faf6;  /* 微绿浅底 */
    --white:        #ffffff;
}

/* Reset & Base */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--white);
}
a { text-decoration: none; }
img { max-width: 100%; display: block; }

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

/* ================= Header ================= */
.header {
    background: var(--white);
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 100;
}
.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}
.logo {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--green);
    letter-spacing: -0.5px;
}
.logo span { color: var(--gold-dark); }

.nav a {
    margin-left: 1.75rem;
    color: var(--text);
    font-weight: 500;
    transition: color .2s;
}
.nav a:hover { color: var(--green); }

/* ================= Buttons ================= */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: all .25s ease;
}
.btn-primary {
    background: var(--gold);
    color: var(--green-darker);
}
.btn-primary:hover {
    background: var(--gold-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(255,210,0,0.45);
}
.btn-secondary {
    background: var(--green);
    color: var(--white);
}
.btn-secondary:hover {
    background: var(--green-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(0,132,61,0.35);
}
.btn-full { width: 100%; text-align: center; }

/* ================= Hero ================= */
.hero {
    position: relative;
    color: var(--white);
    padding: 5rem 0;
    text-align: center;
    overflow: hidden;
    background-image: url("../assets/images/background1.jpg");
    background-size: cover;
    background-position: center 15%;
    background-repeat: no-repeat;
    min-height: 520px;
    display: flex;
    align-items: center;
}
/* 绿+金 渐变遮罩（照片兜底） */
.hero::before {
    content: "";
    position: absolute; inset: 0;
    background: linear-gradient(120deg,
        rgba(0,75,35,0.88) 0%,
        rgba(0,132,61,0.72) 55%,
        rgba(245,166,35,0.45) 100%);
    z-index: 1;
}
.hero .container { position: relative; z-index: 2; }
.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 0 2px 12px rgba(0,0,0,0.35);
}
.hero p {
    font-size: 1.25rem;
    max-width: 640px;
    margin: 0 auto 2rem;
    opacity: 0.95;
    text-shadow: 0 1px 6px rgba(0,0,0,0.3);
}

/* ================= Page Header ================= */
.page-header {
    background: linear-gradient(120deg, var(--green), var(--green-dark));
    color: var(--white);
    padding: 3.5rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.page-header::after {
    content: "";
    position: absolute; right: -40px; bottom: -40px;
    width: 200px; height: 200px;
    background: var(--gold);
    opacity: 0.15;
    border-radius: 50%;
}
.page-header h1 { font-size: 2.25rem; margin-bottom: 0.5rem; }
.page-header p { opacity: 0.9; }

/* ================= Services ================= */
.services { padding: 4.5rem 0; background: var(--bg-light); }
.services h2,
.about-content h2,
.contact-form-wrapper h2,
.contact-info h2 { color: var(--green); }

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2.5rem;
    color: var(--green);
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
}
.service-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.06);
    border-top: 4px solid var(--gold);
    transition: transform .25s, box-shadow .25s;
}
.service-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 28px rgba(0,132,61,0.18);
}
.service-card h3 { color: var(--green); margin-bottom: 0.5rem; }
.service-card .read-more { color: var(--amber); font-weight: 600; }
.service-num {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--gold-dark);
    background: var(--bg-light);
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    margin-bottom: 0.75rem;
}

/* Services Detail */
.services-detail { padding: 4rem 0; }
.services-intro {
    font-size: 1.05rem;
    color: #475569;
    max-width: 860px;
    margin: 0 auto 2.5rem;
    text-align: center;
    line-height: 1.8;
}

/* Compact service list (sub-items grouped under each category) */
.service-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1rem;
}
.service-item {
    padding: 1.25rem 1.5rem;
    border-radius: 10px;
    background: var(--white);
    border-left: 3px solid var(--gold);
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    transition: transform .2s, box-shadow .2s;
}
.service-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 18px rgba(0,132,61,0.12);
}
.service-item:nth-child(even) { background: var(--bg-light); }
.service-item h3 {
    font-size: 1.05rem;
    color: var(--green);
    margin-bottom: 0.35rem;
}
.service-item p {
    font-size: 0.92rem;
    color: #475569;
    line-height: 1.55;
    margin: 0;
}

/* Category (group of services) */
.category { margin-bottom: 3rem; scroll-margin-top: 100px; }
.category-head {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin: 2.5rem 0 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--green);
}
.category-head h2 { font-size: 1.5rem; color: var(--green); margin-bottom: 0.25rem; }
.category-desc { font-size: 0.95rem; color: #475569; margin: 0; }

/* Category anchor navigation */
.category-nav {
    background: var(--bg-light);
    border: 1px solid #dbe7df;
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    margin: 2rem 0 1rem;
}
.category-nav-title { font-weight: 600; color: var(--green-dark); margin-bottom: 0.75rem; }
.category-nav-links { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.cat-link {
    display: inline-block;
    padding: 0.55rem 1.15rem;
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    color: var(--green-dark);
    background: var(--white);
    border: 2px solid var(--green);
    transition: all .2s;
}
.cat-link:hover { background: var(--green); color: var(--white); }
.cat-link-capacity { border-color: var(--green); }
.cat-link-clinical { border-color: #0e7490; color: #0e7490; }
.cat-link-clinical:hover { background: #0e7490; color: var(--white); }
.cat-link-accommodation { border-color: var(--gold-dark); color: #8a5a00; }
.cat-link-accommodation:hover { background: var(--gold-dark); color: var(--white); }

/* ================= About ================= */
.about-preview { padding: 4.5rem 0; text-align: center; }
.about-preview p { max-width: 640px; margin: 1rem auto 2rem; }

.about-content { padding: 4rem 0; }
.about-text h2 { margin-top: 2rem; margin-bottom: 1rem; }
.about-text p { margin-bottom: 1rem; }

.values-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}
.value-item {
    background: var(--bg-light);
    padding: 1.75rem;
    border-radius: 10px;
    border-left: 4px solid var(--green);
    transition: transform .2s;
}
.value-item:hover { transform: translateY(-4px); }
.value-item h3 { color: var(--green); margin-bottom: 0.5rem; }

/* ================= CTA Section ================= */
.cta-section {
    background: linear-gradient(120deg, var(--gold), var(--amber));
    padding: 3.5rem 0;
    text-align: center;
    color: var(--green-darker);
}
.cta-section h2 { margin-bottom: 0.5rem; color: var(--green-darker); }
.cta-section p { margin-bottom: 1.5rem; }

/* ================= Contact ================= */
.contact-section { padding: 4rem 0; }
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}
.contact-form-wrapper h2,
.contact-info h2 { margin-bottom: 1.5rem; }

.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 600; }
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color .2s, box-shadow .2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--green);
    box-shadow: 0 0 0 3px rgba(0,132,61,0.15);
}

.contact-info .info-item { margin-bottom: 1.5rem; }
.contact-info h3 { margin-bottom: 0.25rem; color: var(--green); }
.contact-info a { color: var(--green); }
.contact-info a:hover { color: var(--amber); }

/* ================= Footer ================= */
.footer {
    background: var(--green-darker);
    color: rgba(255,255,255,0.8);
    padding: 2.5rem 0;
    text-align: center;
}
.footer a { color: var(--gold); }
.footer a:hover { color: var(--white); }

/* ================= Accessibility Toolbar ================= */
.accessibility-toolbar {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.5rem;
}
.accessibility-toggle {
    background: var(--green);
    color: var(--white);
    border: none;
    border-radius: 50%;
    width: 56px; height: 56px;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(0,0,0,0.25);
    transition: background .2s;
}
.accessibility-toggle:hover { background: var(--green-dark); }
.accessibility-options {
    display: none;
    flex-direction: column;
    gap: 0.5rem;
    background: var(--white);
    padding: 0.75rem;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.18);
}
.accessibility-options.active { display: flex; }
.accessibility-options button {
    border: none;
    background: var(--bg-light);
    color: var(--green-darker);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: background .2s;
}
.accessibility-options button:hover { background: var(--gold); }

/* 高对比度模式 */
body.high-contrast {
    --text: #ffffff;
    --text-light: #ffffff;
    background: #000000;
    color: #ffffff;
}
body.high-contrast .header,
body.high-contrast .service-card,
body.high-contrast .value-item,
body.high-contrast .accessibility-options {
    background: #000 !important;
    color: #fff !important;
    border-color: var(--gold) !important;
}
body.high-contrast .hero::before {
    background: rgba(0,0,0,0.92) !important;
}

/* ================= Responsive ================= */
.hamburger {
    display: none;
    background: none;
    border: none;
    font-size: 1.75rem;
    color: var(--green);
    cursor: pointer;
}
@media (max-width: 768px) {
    .hamburger { display: block; }
    .nav {
        display: none;
        position: absolute;
        top: 100%; left: 0; right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 1rem 0;
        box-shadow: 0 8px 20px rgba(0,0,0,0.1);
    }
    .nav.active { display: flex; }
    .nav a { margin: 0.6rem 1.5rem; }
    .contact-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 2.25rem; }
}

/* ================= Back to Top ================= */
.back-to-top {
    position: fixed;
    bottom: 96px;
    right: 24px;
    z-index: 999;
    width: 48px; height: 48px;
    border: none;
    border-radius: 50%;
    background: var(--gold);
    color: var(--green-darker);
    font-size: 1.5rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(0,0,0,0.22);
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: all .25s ease;
}
.back-to-top:hover { background: var(--gold-dark); transform: translateY(0) scale(1.05); }
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }

/* Form disabled notice */
.form-notice {
    background: #fff8e1;
    border-left: 4px solid var(--gold);
    padding: 1rem 1.25rem;
    border-radius: 6px;
    margin-bottom: 1.5rem;
    color: #4a3b00;
    font-size: 0.95rem;
}

.my-image {
    width: 150px;       /* 固定宽度 */
    height: auto;       /* 高度自适应 */
    border-radius: 10px;/* 圆角 */
}