* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background:
        radial-gradient(circle at 18% 6%, rgba(255, 59, 59, 0.12), transparent 26%),
        radial-gradient(circle at 86% 28%, rgba(255, 59, 59, 0.08), transparent 30%),
        #080808;
    color: #F6F6F6;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.75;
    overflow-x: hidden;
}

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

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

.site-header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 1000;
    background: rgba(8,8,8,0.94);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,59,59,0.16);
    box-shadow: 0 14px 36px rgba(0,0,0,0.42);
}

.topbar {
    max-width: 1200px;
    margin: 0 auto;
    height: 72px;
    padding: 0 20px;
    display: flex;
    align-items: center;
    gap: 22px;
}

.logo-text {
    flex: 0 0 auto;
    font-size: 30px;
    font-weight: 900;
    letter-spacing: 2px;
    color: #FFFFFF;
    background: linear-gradient(180deg, #FFFFFF 0%, #FF4A4A 45%, #C40000 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 12px rgba(255,35,35,0.58), 0 0 30px rgba(196,0,0,0.42);
    white-space: nowrap;
}

.nav-core {
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
    flex-wrap: nowrap;
    min-width: 0;
    margin-left: auto;
}

.nav-core a {
    color: #F6F6F6;
    padding: 9px 11px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 700;
    transition: .2s ease;
}

.nav-core a:hover,
.nav-core a.active {
    color: #FF3B3B;
    background: rgba(255,59,59,0.10);
    box-shadow: 0 0 18px rgba(255,59,59,0.16);
}

.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 10px 22px;
    background: linear-gradient(180deg, #FF5A5A 0%, #D60000 55%, #8F0000 100%);
    color: #FFFFFF;
    border-radius: 999px;
    box-shadow: 0 12px 28px rgba(255,59,59,0.24);
    font-weight: 800;
    letter-spacing: 1px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    transition: .2s ease;
    white-space: nowrap;
}

.main-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 18px 36px rgba(255,59,59,0.32);
}

.header-btn {
    flex: 0 0 auto;
}

.channel-nav {
    background: rgba(16,16,16,0.94);
    border-top: 1px solid rgba(255,59,59,0.08);
    border-bottom: 1px solid rgba(255,59,59,0.12);
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: none;
}

.channel-nav::-webkit-scrollbar {
    display: none;
}

.channel-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 11px 20px;
    display: flex;
    gap: 10px;
}

.channel-nav a {
    color: #C8C8C8;
    border: 1px solid rgba(255,59,59,0.14);
    border-radius: 999px;
    padding: 7px 13px;
    font-size: 14px;
    font-weight: 700;
    transition: .2s ease;
    background: rgba(255,255,255,0.02);
}

.channel-nav a:hover,
.channel-nav a.active {
    color: #FF3B3B;
    border-color: rgba(255,59,59,0.45);
    background: rgba(255,59,59,0.08);
    box-shadow: 0 0 18px rgba(255,59,59,0.12);
}

.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border: 1px solid rgba(255,59,59,0.25);
    border-radius: 12px;
    background: rgba(255,59,59,0.08);
    padding: 9px;
    flex: 0 0 auto;
}

.menu-toggle span {
    display: block;
    height: 2px;
    background: #F6F6F6;
    border-radius: 4px;
    margin: 5px 0;
}

.site-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 146px 20px 70px;
}

.hero-banner {
    position: relative;
    display: grid;
    grid-template-columns: 1.03fr .97fr;
    gap: 34px;
    align-items: center;
    min-height: 440px;
    padding: 38px;
    border: 1px solid rgba(255,59,59,0.22);
    border-radius: 28px;
    background:
        linear-gradient(135deg, rgba(255,59,59,0.13), transparent 42%),
        linear-gradient(180deg, #151010, #101010);
    box-shadow: 0 18px 42px rgba(0,0,0,0.46), 0 0 24px rgba(255,59,59,0.26);
    overflow: hidden;
}

.hero-banner::after {
    content: "";
    position: absolute;
    right: -120px;
    top: -120px;
    width: 280px;
    height: 280px;
    background: rgba(255,59,59,0.16);
    filter: blur(50px);
    border-radius: 50%;
}

.hero-copy {
    position: relative;
    z-index: 2;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #FF4A4A;
    border: 1px solid rgba(255,59,59,0.22);
    background: rgba(255,59,59,0.08);
    border-radius: 999px;
    padding: 6px 13px;
    font-size: 13px;
    font-weight: 800;
    margin-bottom: 16px;
}

h1,
h2,
h3,
.section-title {
    color: #FF3B3B;
    text-shadow: 0 0 20px rgba(255,59,59,0.20);
    line-height: 1.25;
    margin: 0;
}

h1 {
    font-size: clamp(34px, 5vw, 58px);
    letter-spacing: 1px;
}

h2,
.section-title {
    font-size: clamp(24px, 3vw, 36px);
}

h3 {
    font-size: 20px;
}

p {
    color: #C8C8C8;
    margin: 12px 0 0;
}

.hero-copy p {
    color: #F6F6F6;
    font-size: 17px;
    max-width: 620px;
}

.hero-actions {
    margin-top: 26px;
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    align-items: center;
}

.ghost-btn,
.text-link {
    color: #FF4A4A;
    font-weight: 800;
}

.ghost-btn {
    display: inline-flex;
    min-height: 42px;
    align-items: center;
    justify-content: center;
    padding: 9px 18px;
    border: 1px solid rgba(255,59,59,0.28);
    border-radius: 999px;
    background: rgba(255,59,59,0.06);
}

.hero-media {
    position: relative;
    z-index: 2;
    border: 1px solid rgba(255,59,59,0.18);
    border-radius: 24px;
    background: #101010;
    padding: 12px;
    box-shadow: 0 18px 42px rgba(0,0,0,0.46);
}

.hero-media img {
    width: 100%;
    max-height: 380px;
    object-fit: contain;
    border-radius: 18px;
}

.section {
    margin-top: 52px;
}

.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 22px;
}

.section-head p {
    max-width: 620px;
}

.grid {
    display: grid;
    gap: 20px;
}

.grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card,
.zone-card,
.info-card,
.review-card,
.qa-card,
.notice-card {
    background: #141414;
    border: 1px solid rgba(255,59,59,0.18);
    box-shadow: 0 18px 42px rgba(0,0,0,0.46);
    border-radius: 18px;
}

.card,
.review-card,
.qa-card,
.notice-card {
    padding: 22px;
}

.card .num {
    display: inline-flex;
    width: 34px;
    height: 34px;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    color: #FF4A4A;
    background: rgba(255,59,59,0.10);
    border: 1px solid rgba(255,59,59,0.22);
    font-weight: 900;
    margin-bottom: 12px;
}

.zone-card,
.info-card {
    overflow: hidden;
}

.zone-card img,
.info-card img,
.content-img {
    width: 100%;
    height: 210px;
    object-fit: contain;
    background: #101010;
    border-bottom: 1px solid rgba(255,59,59,0.12);
}

.zone-body,
.info-body {
    padding: 22px;
}

.split-panel {
    display: grid;
    grid-template-columns: .9fr 1.1fr;
    gap: 24px;
    align-items: center;
    padding: 26px;
    background: linear-gradient(135deg, #141414, #151010);
    border: 1px solid rgba(255,59,59,0.18);
    box-shadow: 0 18px 42px rgba(0,0,0,0.46);
    border-radius: 24px;
}

.split-panel.reverse {
    grid-template-columns: 1.1fr .9fr;
}

.split-panel img {
    width: 100%;
    max-height: 320px;
    object-fit: contain;
    border-radius: 18px;
    background: #101010;
    border: 1px solid rgba(255,59,59,0.12);
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.tag-list span {
    color: #FF4A4A;
    background: rgba(255,59,59,0.08);
    border: 1px solid rgba(255,59,59,0.17);
    border-radius: 999px;
    padding: 6px 12px;
    font-size: 13px;
    font-weight: 800;
}

.quick-grid a {
    min-height: 150px;
}

.quick-grid small {
    display: block;
    color: #999999;
    margin-top: 8px;
}

.review-card strong {
    display: block;
    color: #F6F6F6;
    margin-bottom: 8px;
}

.qa-card h3 {
    margin-bottom: 8px;
}

.notice-card {
    background:
        linear-gradient(135deg, rgba(255,59,59,0.10), transparent 38%),
        #141414;
}

.kv-list {
    display: grid;
    gap: 14px;
    margin-top: 20px;
}

.kv-item {
    padding: 16px;
    border: 1px solid rgba(255,59,59,0.12);
    border-radius: 16px;
    background: rgba(255,255,255,0.025);
}

.kv-item b {
    color: #FF4A4A;
}

.page-intro {
    margin-bottom: 38px;
}

.page-intro p {
    max-width: 860px;
    font-size: 17px;
}

.faq-list {
    display: grid;
    gap: 16px;
}

.faq-item {
    padding: 22px;
    border-radius: 18px;
    border: 1px solid rgba(255,59,59,0.18);
    background: #141414;
    box-shadow: 0 18px 42px rgba(0,0,0,0.30);
}

.faq-item h2 {
    font-size: 21px;
}

.contact-panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.contact-box {
    padding: 24px;
    border-radius: 18px;
    border: 1px solid rgba(255,59,59,0.18);
    background: #141414;
}

.site-footer {
    background: #050505;
    color: #C8C8C8;
    border-top: 1px solid rgba(255,59,59,0.16);
    padding: 44px 20px 30px;
}

.footer-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.7fr .7fr .7fr;
    gap: 30px;
}

.footer-grid a {
    display: block;
    color: #C8C8C8;
    margin-top: 9px;
}

.footer-grid a:hover {
    color: #FF4A4A;
}

.footer-logo {
    display: inline-block;
    margin-bottom: 8px;
}

.footer-note {
    max-width: 1200px;
    margin: 26px auto 0;
    padding-top: 18px;
    border-top: 1px solid rgba(255,59,59,0.12);
    color: #999999;
    font-size: 14px;
}

.drawer-mask,
.mobile-drawer,
.mobile-bottom-nav {
    display: none;
}

@media (max-width: 1100px) {
    .topbar {
        gap: 12px;
    }

    .nav-core a {
        padding: 8px 9px;
        font-size: 14px;
    }

    .logo-text {
        font-size: 27px;
    }
}

@media (max-width: 860px) {
    body {
        padding-bottom: 68px;
    }

    .site-header {
        height: 68px;
    }

    .topbar {
        height: 68px;
        padding: 0 14px;
        justify-content: space-between;
    }

    .menu-toggle {
        display: block;
    }

    .nav-core,
    .channel-nav {
        display: none;
    }

    .logo-text {
        font-size: 24px;
        letter-spacing: 1px;
    }

    .header-btn {
        min-height: 38px;
        padding: 8px 15px;
        font-size: 14px;
    }

    .site-main {
        padding: 92px 14px 42px;
    }

    .hero-banner,
    .split-panel,
    .split-panel.reverse {
        grid-template-columns: 1fr;
        padding: 22px;
        gap: 22px;
    }

    .hero-banner {
        min-height: auto;
    }

    .hero-copy p {
        font-size: 15px;
    }

    .hero-media img {
        max-height: 260px;
    }

    .grid-2,
    .grid-3,
    .grid-4,
    .contact-panel {
        grid-template-columns: 1fr;
    }

    .section {
        margin-top: 38px;
    }

    .section-head {
        display: block;
    }

    .zone-card img,
    .info-card img,
    .content-img,
    .split-panel img {
        height: auto;
        max-height: 220px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .drawer-mask {
        position: fixed;
        inset: 0;
        z-index: 1100;
        background: rgba(0,0,0,0.62);
        display: block;
        opacity: 0;
        visibility: hidden;
        transition: .25s ease;
    }

    .mobile-drawer {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: 84vw;
        max-width: 320px;
        z-index: 1200;
        background: #101010;
        border-right: 1px solid rgba(255,59,59,0.22);
        box-shadow: 20px 0 46px rgba(0,0,0,0.48);
        display: block;
        transform: translateX(-102%);
        transition: .25s ease;
        overflow-y: auto;
    }

    body.drawer-open {
        overflow: hidden;
    }

    body.drawer-open .drawer-mask {
        opacity: 1;
        visibility: visible;
    }

    body.drawer-open .mobile-drawer {
        transform: translateX(0);
    }

    .drawer-head {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 18px;
        border-bottom: 1px solid rgba(255,59,59,0.14);
    }

    .drawer-logo {
        font-size: 25px;
    }

    .drawer-close {
        width: 40px;
        height: 40px;
        border: 1px solid rgba(255,59,59,0.22);
        background: rgba(255,59,59,0.08);
        color: #FFFFFF;
        border-radius: 12px;
        font-size: 26px;
        line-height: 1;
    }

    .drawer-nav {
        display: grid;
        gap: 8px;
        padding: 16px;
    }

    .drawer-nav a {
        padding: 12px 14px;
        border-radius: 14px;
        color: #F6F6F6;
        border: 1px solid rgba(255,59,59,0.12);
        background: #151010;
        font-weight: 700;
    }

    .drawer-nav a.active {
        color: #FF3B3B;
        border-color: rgba(255,59,59,0.42);
        background: rgba(255,59,59,0.10);
    }

    .mobile-bottom-nav {
        position: fixed;
        left: 10px;
        right: 10px;
        bottom: 10px;
        z-index: 990;
        height: 52px;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        align-items: center;
        border: 1px solid rgba(255,59,59,0.20);
        border-radius: 18px;
        background: rgba(16,16,16,0.96);
        backdrop-filter: blur(12px);
        box-shadow: 0 12px 28px rgba(0,0,0,0.46);
    }

    .mobile-bottom-nav a {
        text-align: center;
        color: #F6F6F6;
        font-size: 13px;
        font-weight: 800;
    }

    .mobile-bottom-nav a:hover {
        color: #FF4A4A;
    }
}