* {
    box-sizing: border-box;
}
:root {
    --bg: #FFFFFF;
    --soft: #F6F7F9;
    --section: #F1F3F6;
    --card: #FFFFFF;
    --red: #C90000;
    --red-dark: #A80000;
    --text: #1F2329;
    --muted: #5D6673;
    --light-text: #8A93A0;
    --border: rgba(201,0,0,0.12);
    --shadow: 0 12px 30px rgba(18,28,45,0.08);
    --footer: #11151C;
    --footer-text: #E7ECF3;
}
html {
    scroll-behavior: smooth;
}
html.drawer-open,
html.drawer-open body {
    overflow: hidden;
}
body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.75;
    padding-top: 74px;
}
a {
    color: inherit;
    text-decoration: none;
}
img {
    max-width: 100%;
    height: auto;
}
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.96);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(201,0,0,0.08);
}
.header-inner {
    width: min(1420px, calc(100% - 36px));
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: 74px;
}
.logo,
.drawer-logo,
.footer-logo {
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
}
.logo img {
    max-height: 52px;
    width: auto;
    display: block;
}
.nav-core {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    white-space: nowrap;
    flex-wrap: nowrap;
    min-width: 0;
    flex: 1 1 auto;
}
.nav-core a {
    color: var(--text);
    background: var(--soft);
    border-radius: 999px;
    padding: 10px 16px;
    font-size: 15px;
    line-height: 1;
    transition: all .2s ease;
}
.nav-core a:hover,
.nav-core a.active {
    color: var(--red);
    background: rgba(201,0,0,0.08);
}
.register-btn,
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    border-radius: 999px;
    padding: 0 22px;
    background: linear-gradient(180deg, #F12B2B 0%, #C90000 55%, #A80000 100%);
    color: #FFFFFF;
    font-weight: 700;
    border: 0;
    box-shadow: 0 10px 20px rgba(201,0,0,0.20);
    flex: 0 0 auto;
}
.main-btn:hover,
.register-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 26px rgba(201,0,0,0.25);
}
.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #fff;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    flex: 0 0 auto;
}
.menu-toggle span {
    width: 20px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
}
.drawer-mask {
    display: none;
}
.mobile-drawer {
    display: none;
}
.page-shell {
    width: min(1420px, calc(100% - 36px));
    margin: 0 auto;
    display: grid;
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
}
.side-category {
    position: sticky;
    top: 96px;
    margin-top: 24px;
    background: #FFFFFF;
    border: 1px solid rgba(201,0,0,0.10);
    border-radius: 18px;
    box-shadow: var(--shadow);
    padding: 14px;
}
.side-title {
    color: var(--red);
    font-weight: 800;
    padding: 6px 10px 10px;
    border-bottom: 1px solid rgba(201,0,0,0.10);
    margin-bottom: 8px;
}
.side-category a {
    display: block;
    color: var(--text);
    border-radius: 12px;
    padding: 9px 10px;
    font-size: 14px;
    transition: all .2s ease;
}
.side-category a:hover,
.side-category a.active {
    color: var(--red);
    background: rgba(201,0,0,0.08);
}
.main-content {
    min-width: 0;
    padding-bottom: 34px;
}
.banner-slider {
    max-width: 1180px;
    margin: 24px auto 34px;
    border-radius: 22px;
    background: #F7F8FA;
    box-shadow: var(--shadow);
    overflow: hidden;
    position: relative;
    height: clamp(260px, 28vw, 360px);
}
.banner-slider .slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity .45s ease;
}
.banner-slider .slide.active {
    opacity: 1;
    z-index: 1;
}
.banner-slider img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #F7F8FA;
    display: block;
}
.banner-caption,
.banner-text,
.slide-title,
.slide-desc,
.slide-content,
.slide-card,
.banner-card {
    display: none !important;
}
.slider-prev,
.slider-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    width: 42px;
    height: 42px;
    border: 1px solid rgba(255,255,255,0.8);
    border-radius: 50%;
    background: rgba(255,255,255,0.72);
    color: var(--red);
    font-size: 34px;
    line-height: 1;
    cursor: pointer;
}
.slider-prev {
    left: 16px;
}
.slider-next {
    right: 16px;
}
.slider-dots {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 16px;
    display: flex;
    justify-content: center;
    gap: 8px;
    z-index: 2;
}
.slider-dots button {
    width: 9px;
    height: 9px;
    padding: 0;
    border: 0;
    border-radius: 999px;
    background: rgba(31,35,41,0.28);
    cursor: pointer;
}
.slider-dots button.active {
    width: 24px;
    background: var(--red);
}
.section {
    margin: 0 auto 32px;
    max-width: 1180px;
}
.section-pad {
    padding: 30px;
}
.section-soft {
    background: var(--soft);
    border-radius: 24px;
}
.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 18px;
}
.section-eyebrow {
    color: var(--red);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .08em;
    margin-bottom: 6px;
}
h1,
h2,
h3,
.section-title {
    color: var(--red);
    line-height: 1.35;
    margin-top: 0;
}
h1 {
    font-size: clamp(30px, 4vw, 48px);
    margin-bottom: 16px;
}
h2,
.section-title {
    font-size: clamp(24px, 3vw, 34px);
    margin-bottom: 12px;
}
h3 {
    font-size: 20px;
    margin-bottom: 8px;
}
p {
    margin: 0 0 12px;
}
.lead {
    font-size: 17px;
    color: var(--muted);
}
.muted {
    color: var(--muted);
}
.card,
.zone-card,
.info-card,
.review-card,
.faq-card,
.hero-card {
    background: #FFFFFF;
    border: 1px solid rgba(201,0,0,0.10);
    box-shadow: var(--shadow);
    border-radius: 18px;
}
.hero-card {
    padding: 32px;
}
.hero-grid,
.two-col {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr);
    gap: 24px;
    align-items: center;
}
.hero-img,
.content-img {
    width: 100%;
    max-height: 300px;
    object-fit: contain;
    background: #F7F8FA;
    border-radius: 18px;
    border: 1px solid rgba(201,0,0,0.08);
    display: block;
}
.quick-grid,
.stats-grid,
.grid-3,
.grid-4,
.product-grid,
.review-grid,
.faq-grid {
    display: grid;
    gap: 18px;
}
.quick-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}
.stats-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}
.grid-3,
.product-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}
.grid-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}
.review-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}
.faq-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}
.info-card,
.zone-card,
.review-card,
.faq-card,
.card {
    padding: 20px;
}
.info-card img,
.zone-card img,
.content-img {
    max-width: 100%;
    height: auto;
    max-height: 230px;
    object-fit: contain;
}
.product-card {
    overflow: hidden;
    padding: 0;
}
.product-card img {
    width: 100%;
    height: 170px;
    object-fit: contain;
    background: #F7F8FA;
    display: block;
}
.product-card .card-body {
    padding: 18px;
}
.tag {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    color: var(--red);
    background: rgba(201,0,0,0.08);
    padding: 4px 10px;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 10px;
}
.red-panel {
    background: linear-gradient(135deg, #C90000 0%, #A80000 100%);
    color: #fff;
    border-radius: 24px;
    padding: 26px;
    box-shadow: 0 16px 34px rgba(201,0,0,0.18);
}
.red-panel h2,
.red-panel h3,
.red-panel .section-title {
    color: #fff;
}
.red-panel p {
    color: rgba(255,255,255,0.88);
}
.red-panel .stat-item {
    border: 1px solid rgba(255,255,255,0.18);
    border-radius: 18px;
    padding: 18px;
    background: rgba(255,255,255,0.08);
}
.stat-num {
    font-size: 28px;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 6px;
}
.link-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 16px;
}
.text-link {
    display: inline-flex;
    align-items: center;
    color: var(--red);
    font-weight: 700;
}
.notice-list {
    display: grid;
    gap: 12px;
    padding: 0;
    margin: 0;
    list-style: none;
}
.notice-list li {
    padding-left: 16px;
    border-left: 3px solid var(--red);
    color: var(--muted);
}
.check-list {
    display: grid;
    gap: 10px;
    padding: 0;
    margin: 14px 0 0;
    list-style: none;
}
.check-list li {
    position: relative;
    padding-left: 26px;
    color: var(--muted);
}
.check-list li:before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--red);
    font-weight: 800;
}
.page-hero {
    margin-top: 24px;
}
.inner-section {
    margin-top: 24px;
}
.quote-mark {
    color: var(--red);
    font-size: 28px;
    line-height: 1;
}
.site-footer {
    background: var(--footer);
    color: var(--footer-text);
    margin-top: 24px;
}
.footer-inner {
    width: min(1420px, calc(100% - 36px));
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.4fr .8fr .8fr 1.1fr;
    gap: 28px;
    padding: 42px 0 30px;
}
.footer-logo img {
    max-height: 50px;
    width: auto;
    display: block;
    margin-bottom: 12px;
}
.footer-brand p,
.footer-col p {
    color: rgba(231,236,243,0.78);
}
.footer-col h3 {
    color: #fff;
    margin-bottom: 12px;
}
.footer-col a {
    display: block;
    color: rgba(231,236,243,0.80);
    margin: 7px 0;
}
.footer-col a:hover {
    color: #fff;
}
.footer-bottom {
    width: min(1420px, calc(100% - 36px));
    margin: 0 auto;
    border-top: 1px solid rgba(255,255,255,0.12);
    padding: 16px 0 22px;
    display: flex;
    justify-content: space-between;
    gap: 16px;
    color: rgba(231,236,243,0.65);
    font-size: 13px;
}
.mobile-bottom-nav {
    display: none;
}
@media (max-width: 1260px) {
    .page-shell {
        grid-template-columns: 1fr;
        width: min(1180px, calc(100% - 36px));
    }
    .side-category {
        display: none;
    }
}
@media (max-width: 900px) {
    body {
        padding-top: 66px;
        padding-bottom: 70px;
    }
    .header-inner {
        min-height: 66px;
        width: calc(100% - 24px);
        gap: 10px;
        display: grid;
        grid-template-columns: 48px 1fr auto;
    }
    .menu-toggle {
        display: inline-flex;
    }
    .logo {
        justify-content: center;
    }
    .logo img {
        max-height: 42px;
    }
    .nav-core {
        display: none;
    }
    .register-btn {
        min-height: 38px;
        padding: 0 16px;
    }
    .drawer-mask {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(17,21,28,0.42);
        opacity: 0;
        pointer-events: none;
        transition: opacity .2s ease;
    }
    .drawer-mask.open {
        opacity: 1;
        pointer-events: auto;
    }
    .mobile-drawer {
        display: block;
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: min(84vw, 320px);
        background: #fff;
        transform: translateX(-105%);
        transition: transform .24s ease;
        z-index: 1001;
        overflow-y: auto;
        box-shadow: 14px 0 30px rgba(18,28,45,0.18);
    }
    .mobile-drawer.open {
        transform: translateX(0);
    }
    .drawer-top {
        display: flex;
        align-items: center;
        justify-content: space-between;
        min-height: 66px;
        padding: 0 16px;
        border-bottom: 1px solid rgba(201,0,0,0.10);
    }
    .drawer-logo img {
        max-height: 42px;
    }
    .drawer-close {
        width: 38px;
        height: 38px;
        border-radius: 12px;
        border: 1px solid rgba(201,0,0,0.12);
        background: #fff;
        color: var(--red);
        font-size: 28px;
        line-height: 1;
    }
    .drawer-links {
        padding: 12px;
        display: grid;
        gap: 6px;
    }
    .drawer-links a {
        padding: 10px 12px;
        border-radius: 12px;
        color: var(--text);
        background: #fff;
    }
    .drawer-links a.active,
    .drawer-links a:hover {
        color: var(--red);
        background: rgba(201,0,0,0.08);
    }
    .drawer-note {
        margin: 0 16px 20px;
        padding: 12px;
        background: var(--soft);
        border-radius: 14px;
        color: var(--muted);
        font-size: 13px;
    }
    .page-shell {
        width: calc(100% - 24px);
    }
    .banner-slider {
        margin: 16px auto 24px;
        border-radius: 16px;
        height: clamp(150px, 48vw, 210px);
        min-height: auto;
    }
    .slider-prev,
    .slider-next {
        width: 34px;
        height: 34px;
        font-size: 26px;
    }
    .section {
        margin-bottom: 22px;
    }
    .section-pad,
    .hero-card,
    .red-panel {
        padding: 20px;
    }
    .section-head {
        display: block;
    }
    .hero-grid,
    .two-col,
    .quick-grid,
    .stats-grid,
    .grid-3,
    .grid-4,
    .product-grid,
    .review-grid,
    .faq-grid {
        grid-template-columns: 1fr;
    }
    .hero-img,
    .content-img {
        max-height: 230px;
    }
    .product-card img {
        height: 150px;
    }
    .mobile-bottom-nav {
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        background: #fff;
        border-top: 1px solid rgba(31,35,41,0.10);
        z-index: 999;
        height: 62px;
        padding-bottom: env(safe-area-inset-bottom);
    }
    .mobile-bottom-nav a {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2px;
        color: var(--muted);
        font-size: 12px;
        line-height: 1.1;
    }
    .mobile-bottom-nav a span {
        font-size: 18px;
        line-height: 1;
    }
    .mobile-bottom-nav a.active {
        color: var(--red);
        font-weight: 700;
    }
    .footer-inner {
        grid-template-columns: 1fr;
        width: calc(100% - 24px);
        padding: 32px 0 22px;
    }
    .footer-bottom {
        width: calc(100% - 24px);
        flex-direction: column;
        gap: 6px;
        padding-bottom: 82px;
    }
}
@media (max-width: 420px) {
    .register-btn {
        padding: 0 14px;
    }
    .logo img {
        max-height: 38px;
    }
    h1 {
        font-size: 28px;
    }
}