* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: #F5F5F5;
    color: #111111;
    line-height: 1.65;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    display: block;
}

header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(17, 17, 17, 0.96);
    color: #ffffff;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.18);
}

.container {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
}

.header-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
    gap: 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    letter-spacing: 0.5px;
}

.logo img {
    width: 44px;
    height: 44px;
    object-fit: contain;
    border-radius: 12px;
}

nav {
    display: none;
    align-items: center;
    gap: 10px;
}

nav a,
.mobile-nav a {
    padding: 10px 14px;
    border-radius: 999px;
    color: #ffffff;
    opacity: 0.88;
}

nav a:hover,
nav a.active,
.mobile-nav a:hover {
    background: #fb9609;
    color: #111111;
    opacity: 1;
}

.mobile-nav {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
    padding: 0 16px 12px;
    font-size: 13px;
    text-align: center;
}

.hero,
.banner {
    background: linear-gradient(135deg, #111111 0%, #1C1C1C 55%, #2B2B2B 100%);
    color: #ffffff;
    border-radius: 0 0 28px 28px;
    overflow: hidden;
}

.hero-wrap,
.banner-wrap {
    display: grid;
    gap: 30px;
    padding: 42px 0;
    align-items: center;
}

.hero h1,
.banner h1,
.page-hero h1 {
    font-size: clamp(32px, 8vw, 64px);
    line-height: 1.08;
    margin: 0 0 18px;
}

.hero p,
.banner p,
.page-hero p {
    margin: 0 0 18px;
    color: rgba(255, 255, 255, 0.82);
}

.hero-image {
    padding: 18px;
    border-radius: 28px;
    background: rgba(255, 255, 255, 0.06);
    box-shadow: 0 20px 70px rgba(0, 0, 0, 0.28);
}

section {
    padding: 42px 0;
}

.section-title {
    max-width: 760px;
    margin-bottom: 24px;
}

.section-title h2,
.card h2,
.card h3 {
    margin-top: 0;
    line-height: 1.25;
}

.grid {
    display: grid;
    gap: 18px;
}

.card {
    background: #ffffff;
    border-radius: 20px;
    padding: 24px;
    box-shadow: 0 12px 34px rgba(17, 17, 17, 0.08);
    border: 1px solid rgba(17, 17, 17, 0.05);
}

.card.dark {
    background: #1C1C1C;
    color: #ffffff;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 13px 22px;
    border-radius: 999px;
    background: #fb9609;
    color: #111111;
    font-weight: 800;
    box-shadow: 0 10px 24px rgba(251, 150, 9, 0.28);
    border: 0;
}

.btn:hover {
    transform: translateY(-1px);
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 22px;
}

.tag {
    background: rgba(251, 150, 9, 0.14);
    color: #fb9609;
    border: 1px solid rgba(251, 150, 9, 0.3);
    padding: 8px 12px;
    border-radius: 999px;
    font-size: 14px;
}

.notice {
    background: rgba(251, 150, 9, 0.12);
    border: 1px solid rgba(251, 150, 9, 0.36);
    border-left: 5px solid #fb9609;
    border-radius: 18px;
    padding: 18px;
    margin: 20px 0;
}

.faq {
    display: grid;
    gap: 14px;
}

.faq details {
    background: #ffffff;
    border-radius: 18px;
    padding: 18px 20px;
    box-shadow: 0 8px 26px rgba(17, 17, 17, 0.07);
}

.faq summary {
    cursor: pointer;
    font-weight: 800;
}

.page-hero {
    background: #1C1C1C;
    color: #ffffff;
    padding: 48px 0;
}

.steps {
    counter-reset: step;
    display: grid;
    gap: 16px;
    padding: 0;
    list-style: none;
}

.steps li {
    counter-increment: step;
    background: #ffffff;
    border-radius: 18px;
    padding: 18px 18px 18px 64px;
    position: relative;
    box-shadow: 0 8px 26px rgba(17, 17, 17, 0.07);
}

.steps li::before {
    content: counter(step);
    position: absolute;
    left: 18px;
    top: 18px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: #fb9609;
    color: #111111;
    font-weight: 800;
}

.footer {
    background: #111111;
    color: #ffffff;
    padding: 42px 0;
    margin-top: 40px;
}

.footer-grid {
    display: grid;
    gap: 24px;
}

.footer a {
    display: block;
    color: rgba(255, 255, 255, 0.78);
    margin: 8px 0;
}

.footer p {
    color: rgba(255, 255, 255, 0.72);
}

.footer-brand {
    font-size: 28px;
    font-weight: 900;
    color: #fb9609;
}

.link-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 18px;
}

.link-row a {
    color: #fb9609;
    font-weight: 700;
}

@media (min-width: 768px) {
    nav {
        display: flex;
    }
    .mobile-nav {
        display: none;
    }
    .hero-wrap,
    .banner-wrap {
        grid-template-columns: 1.1fr 0.9fr;
        padding: 68px 0;
    }
    .grid.two {
        grid-template-columns: repeat(2, 1fr);
    }
    .grid.three {
        grid-template-columns: repeat(3, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1.5fr 0.8fr 1.2fr;
    }
}

@media (min-width: 1024px) {
    section {
        padding: 58px 0;
    }
    .card {
        padding: 30px;
    }
    .hero h1,
    .banner h1 {
        letter-spacing: -1.5px;
    }
}