:root {
    --confex-orange: #f57c00;
    --confex-orange-dark: #d86d00;
    --confex-navy: #1a2e4a;
    --confex-ink: #122031;
    --confex-sky: #eef4fb;
    --confex-white: #ffffff;
    --confex-border: #d7e1ee;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Open Sans", "Segoe UI", sans-serif;
    color: var(--confex-ink);
    background: linear-gradient(180deg, #f7fbff 0%, #ffffff 55%, #eef4fb 100%);
    line-height: 1.6;
}

.container {
    width: min(1120px, 92%);
    margin: 0 auto;
}

.site-header {
    background: var(--confex-white);
    border-bottom: 1px solid var(--confex-border);
    position: sticky;
    top: 0;
    z-index: 10;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.9rem 0;
}

.brand img {
    width: 165px;
    max-width: 100%;
    height: auto;
}

.main-nav {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.main-nav a,
.site-footer a {
    color: var(--confex-navy);
    text-decoration: none;
}

.main-nav a:hover,
.site-footer a:hover {
    color: var(--confex-orange);
}

.hotline,
.btn {
    display: inline-block;
    background: var(--confex-orange);
    color: var(--confex-white);
    padding: 0.55rem 1rem;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 700;
}

.hotline:hover,
.btn:hover {
    background: var(--confex-orange-dark);
}

.hero {
    padding: 3.2rem 0 2.4rem;
}

.hero-card {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 2rem;
    background: var(--confex-white);
    border: 1px solid var(--confex-border);
    border-radius: 22px;
    padding: 2rem;
    box-shadow: 0 8px 28px rgba(17, 38, 63, 0.08);
}

.hero h1 {
    margin-top: 0;
    color: var(--confex-navy);
    font-size: clamp(1.9rem, 3.4vw, 2.7rem);
    line-height: 1.2;
}

.hero-image {
    border-radius: 16px;
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 260px;
    border: 1px solid var(--confex-border);
}

.section {
    padding: 2.4rem 0;
}

h2 {
    color: var(--confex-navy);
    font-size: clamp(1.4rem, 2vw, 1.9rem);
    margin: 0 0 1rem;
}

.filter-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
    margin-bottom: 1rem;
}

.filter-btn {
    border: 1px solid var(--confex-border);
    background: var(--confex-white);
    color: var(--confex-navy);
    padding: 0.45rem 0.9rem;
    border-radius: 999px;
    cursor: pointer;
}

.filter-btn.active {
    background: var(--confex-navy);
    color: var(--confex-white);
}

.table-wrap {
    overflow: auto;
    border: 1px solid var(--confex-border);
    border-radius: 14px;
    background: var(--confex-white);
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--confex-border);
    text-align: left;
    white-space: nowrap;
}

th {
    background: #f2f7fd;
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 1rem;
}

.card {
    background: var(--confex-white);
    border: 1px solid var(--confex-border);
    border-radius: 14px;
    padding: 1rem;
}

.usp {
    background: linear-gradient(120deg, #fff2df 0%, #ffffff 45%, #edf4ff 100%);
    border-radius: 16px;
    border: 1px solid var(--confex-border);
    padding: 1rem 1.2rem;
}

.faq-item {
    background: var(--confex-white);
    border: 1px solid var(--confex-border);
    border-radius: 10px;
    padding: 0.9rem;
    margin-bottom: 0.8rem;
}

.site-footer {
    margin-top: 2rem;
    background: var(--confex-navy);
    color: var(--confex-white);
    padding: 2rem 0 1rem;
}

.site-footer h2 {
    color: var(--confex-white);
    font-size: 1.1rem;
}

.site-footer a {
    color: #ffd7a7;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.footer-grid ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    margin-top: 1rem;
    padding-top: 0.7rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.footer-seal {
    width: 88px;
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    background: #fff;
    padding: 2px;
}

@media (max-width: 900px) {
    .hero-card {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
    }

    .main-nav {
        display: none;
    }
}