/* Trang /support — kênh liên hệ và hỗ trợ Sắp Tết */
.support-page {
    --support-red: #c92e35;
    --support-red-dark: #75131d;
    --support-gold: #ffd86b;
    --support-ink: #3b201b;
    --support-muted: #765f58;
    --support-border: rgba(121, 31, 29, 0.13);
    --support-surface: #fff;
    color: var(--support-ink);
    background: #fffaf1;
}

.support-page main { padding: 0; }

.support-container {
    width: min(1060px, calc(100% - 2rem));
    margin-inline: auto;
}

.support-hero {
    padding: clamp(3rem, 8vw, 5.5rem) 0;
    color: #fff;
    background: radial-gradient(circle at 82% 18%, rgba(255, 216, 107, 0.3), transparent 22rem), linear-gradient(135deg, #7b111f, #bb2632 58%, #dd5d3a);
}

.support-kicker {
    margin: 0 0 0.75rem;
    color: var(--support-gold);
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.support-hero h1 {
    max-width: 760px;
    margin: 0;
    color: #fff;
    font-family: var(--font-body);
    font-size: clamp(2.1rem, 6vw, 3.8rem);
    font-weight: 900;
    line-height: 1.08;
    letter-spacing: -0.03em;
    text-wrap: balance;
}

.support-lead {
    max-width: 650px;
    margin: 1.1rem 0 0;
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.04rem;
    line-height: 1.7;
}

.support-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    min-height: 50px;
    margin-top: 1.5rem;
    padding: 0.7rem 1.2rem;
    border-radius: 13px;
    color: #591018;
    background: var(--support-gold);
    font-weight: 850;
    text-decoration: none;
}

.support-primary:hover { color: #591018; transform: translateY(-2px); }
.support-primary svg { width: 20px; height: 20px; }

.support-section { padding: clamp(2.5rem, 6vw, 4rem) 0; }
.support-section--alt { background: #fff3e2; }

.support-section h2 {
    margin: 0 0 1rem;
    color: var(--support-ink);
    font-size: clamp(1.4rem, 3.5vw, 1.9rem);
    line-height: 1.25;
}

.support-channels { display: grid; gap: 0.9rem; }

.support-channel {
    display: flex;
    align-items: flex-start;
    gap: 0.9rem;
    padding: 1.1rem;
    border: 1px solid var(--support-border);
    border-radius: 18px;
    color: var(--support-ink);
    background: var(--support-surface);
    text-decoration: none;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.support-channel:hover { color: var(--support-ink); transform: translateY(-2px); box-shadow: 0 10px 26px rgba(117, 19, 29, 0.1); }
.support-channel--primary { border-color: var(--support-red); }

.support-channel-icon {
    display: inline-flex;
    flex: none;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 14px;
    color: var(--support-red);
    background: #fff0e0;
}

.support-channel-icon svg { width: 24px; height: 24px; }
.support-channel-body { display: flex; flex-direction: column; gap: 0.15rem; min-width: 0; }
.support-channel-body strong { font-size: 1.05rem; }
.support-channel-value { color: var(--support-red); font-weight: 800; overflow-wrap: anywhere; }
.support-channel-body span:last-child { color: var(--support-muted); font-size: 0.92rem; }

.support-grid { display: grid; gap: 1.1rem; }

.support-card {
    padding: clamp(1.25rem, 4vw, 1.75rem);
    border: 1px solid var(--support-border);
    border-radius: 20px;
    background: var(--support-surface);
}

.support-card p { margin: 0 0 0.9rem; color: var(--support-muted); line-height: 1.7; }
.support-card a { color: var(--support-red); font-weight: 700; }

.support-list { margin: 0 0 1rem; padding-left: 1.2rem; color: var(--support-muted); line-height: 1.7; }

.support-warning {
    display: flex;
    gap: 0.6rem;
    padding: 0.8rem 0.9rem;
    border-radius: 12px;
    color: var(--support-red-dark) !important;
    background: #fff0e0;
    font-weight: 700;
}

.support-warning svg { flex: none; width: 20px; height: 20px; margin-top: 0.15rem; }

.support-faq { display: grid; gap: 0.6rem; }

.support-faq details {
    padding: 0.85rem 1rem;
    border: 1px solid var(--support-border);
    border-radius: 14px;
    background: #fffaf1;
}

.support-faq summary { font-weight: 800; cursor: pointer; }
.support-faq details p { margin: 0.6rem 0 0; }

.support-stores { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1rem; }
.support-stores a {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.55rem 1rem;
    border-radius: 12px;
    color: #fff !important;
    background: #1f1414;
    text-decoration: none;
}

.support-stores img { display: block; width: 24px; height: 24px; }
.support-stores span { display: flex; flex-direction: column; font-weight: 800; line-height: 1.15; }
.support-stores small { font-size: 0.68rem; font-weight: 600; opacity: 0.75; }

.support-legal { display: flex; flex-wrap: wrap; gap: 0.5rem 1.2rem; }

@media (min-width: 720px) {
    .support-channels { grid-template-columns: repeat(2, 1fr); }
    .support-grid { grid-template-columns: repeat(2, 1fr); align-items: start; }
}