* {
    box-sizing: border-box;
}
:root {
    --page-bg: #E6EBF2;
    --nav-bg: #F5F7FB;
    --card-bg: #FFFFFF;
    --soft-bg: #EEF2F7;
    --light-bg: #F5F7FB;
    --blue: #289CFF;
    --text: #243447;
    --muted: #66788A;
    --note: #8A9AAF;
    --footer: #243447;
    --footer-text: #EAF3FF;
    --line: rgba(40,156,255,0.16);
    --shadow: 0 14px 36px rgba(56,92,138,0.10);
    --strong-shadow: 0 18px 40px rgba(56,92,138,0.12);
    --btn: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    background: var(--page-bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.75;
}
a {
    color: inherit;
    text-decoration: none;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
h1, h2, h3, .section-title {
    color: var(--blue);
    margin-top: 0;
    line-height: 1.28;
}
p {
    margin: 0 0 14px;
}
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--nav-bg);
    border-bottom: 1px solid rgba(78,95,122,0.12);
    box-shadow: 0 10px 28px rgba(56,92,138,0.08);
}
.header-inner {
    max-width: 1240px;
    margin: 0 auto;
    padding: 12px 22px;
    min-height: 72px;
    display: flex;
    align-items: center;
    gap: 18px;
}
.brand-logo img,
.drawer-logo img {
    width: 132px;
    height: auto;
}
.nav {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    overflow-x: auto;
    scrollbar-width: none;
}
.nav::-webkit-scrollbar { display: none; }
.nav a {
    color: #4E5F7A;
    font-weight: 700;
    white-space: nowrap;
    padding: 9px 10px;
    border-radius: 999px;
    font-size: 14px;
}
.nav a.active,
.nav a:hover,
.drawer-links a.active,
.drawer-links a:hover {
    color: var(--blue);
    background: rgba(40,156,255,0.10);
}
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 24px;
    border-radius: 999px;
    background: var(--btn);
    color: #FFFFFF;
    font-weight: 800;
    box-shadow: 0 12px 26px rgba(36,155,255,0.24);
    border: 0;
}
.header-btn {
    flex: 0 0 auto;
}
.menu-toggle,
.drawer-close {
    display: none;
    border: 0;
    background: transparent;
    cursor: pointer;
}
.menu-toggle span {
    width: 24px;
    height: 2px;
    background: #4E5F7A;
    display: block;
    margin: 5px 0;
    border-radius: 9px;
}
.site-main {
    padding-top: 86px;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 22px;
}
.hero-section {
    max-width: 1200px;
    margin: 28px auto 36px;
    border-radius: 20px;
    background: #FFFFFF;
    box-shadow: 0 18px 40px rgba(56,92,138,0.12);
    overflow: hidden;
    position: relative;
}
.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(300px, 0.98fr);
    gap: 28px;
    align-items: center;
    padding: 44px;
}
.hero-copy .eyebrow,
.eyebrow {
    color: var(--blue);
    font-weight: 800;
    letter-spacing: .04em;
    margin-bottom: 8px;
}
.hero-copy h1 {
    font-size: clamp(32px, 5vw, 54px);
    margin: 0 0 16px;
}
.hero-copy .lead {
    color: var(--muted);
    font-size: 17px;
    margin-bottom: 18px;
}
.hero-text {
    font-size: 16px;
    color: var(--text);
    margin-bottom: 22px;
}
.tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 18px 0 24px;
}
.tag-row span,
.label {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 0 13px;
    border-radius: 999px;
    color: var(--blue);
    background: rgba(40,156,255,0.10);
    font-weight: 700;
    font-size: 14px;
}
.hero-media,
.page-media {
    background: #EEF2F7;
    border-radius: 18px;
    padding: 16px;
    border: 1px solid rgba(40,156,255,0.12);
}
.hero-section img,
.page-media img,
.content-img,
.zone-card img,
.app-section img {
    max-width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: 16px;
}
.section {
    margin: 34px 0;
}
.section-head {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    align-items: flex-end;
    margin-bottom: 20px;
}
.section-head h2 {
    margin-bottom: 6px;
    font-size: clamp(24px, 3vw, 34px);
}
.section-head p {
    max-width: 740px;
    color: var(--muted);
}
.grid {
    display: grid;
    gap: 18px;
}
.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,
.notice-card,
.step-card,
.faq-card {
    background: rgba(255,255,255,0.92);
    border: 1px solid rgba(40,156,255,0.16);
    box-shadow: 0 14px 36px rgba(56,92,138,0.10);
    border-radius: 18px;
    padding: 22px;
}
.card h3,
.zone-card h3,
.info-card h3,
.review-card h3,
.notice-card h3,
.step-card h3,
.faq-card h3 {
    margin-bottom: 8px;
    font-size: 21px;
}
.card p,
.zone-card p,
.info-card p,
.review-card p,
.notice-card p,
.step-card p,
.faq-card p {
    color: var(--muted);
}
.text-link {
    color: var(--blue);
    font-weight: 800;
    display: inline-flex;
    margin-top: 8px;
}
.split {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(300px, .9fr);
    gap: 22px;
    align-items: center;
}
.app-section {
    background: #FFFFFF;
    border-radius: 22px;
    padding: 28px;
    box-shadow: var(--strong-shadow);
    border: 1px solid rgba(40,156,255,0.12);
}
.check-list,
.clean-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 12px;
}
.check-list li,
.clean-list li {
    position: relative;
    padding-left: 28px;
    color: var(--muted);
}
.check-list li::before,
.clean-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 10px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--blue);
    box-shadow: 0 0 0 5px rgba(40,156,255,0.10);
}
.step-card strong,
.number {
    color: var(--blue);
    font-size: 28px;
    display: block;
    margin-bottom: 6px;
}
.notice-band {
    background: #DDE4EE;
    border: 1px solid rgba(78,95,122,0.12);
    border-radius: 20px;
    padding: 24px;
}
.review-card .name {
    color: var(--text);
    font-weight: 800;
    margin-bottom: 8px;
}
.page-header {
    max-width: 1200px;
    margin: 28px auto 28px;
    padding: 42px;
    border-radius: 22px;
    background: #FFFFFF;
    box-shadow: var(--strong-shadow);
}
.page-header-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(280px, .95fr);
    gap: 24px;
    align-items: center;
}
.page-header h1 {
    font-size: clamp(30px, 4vw, 46px);
    margin: 0 0 14px;
}
.page-header p {
    color: var(--muted);
    font-size: 16px;
}
.pill-list {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
    margin-top: 16px;
}
.pill-list span {
    padding: 7px 12px;
    border-radius: 999px;
    background: #EEF2F7;
    color: var(--blue);
    font-weight: 700;
}
.content-block {
    background: #FFFFFF;
    border-radius: 20px;
    padding: 28px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(40,156,255,0.12);
    margin-bottom: 22px;
}
.content-block p {
    color: var(--muted);
}
.footer-note {
    color: var(--note);
}
.site-footer {
    margin-top: 46px;
    background: #243447;
    color: #EAF3FF;
}
.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 42px 22px 28px;
    display: grid;
    grid-template-columns: minmax(240px, .9fr) minmax(0, 1.8fr);
    gap: 36px;
}
.footer-brand img {
    width: 138px;
    margin-bottom: 16px;
}
.footer-brand p,
.footer-notice p {
    color: rgba(234,243,255,.82);
}
.footer-links {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
}
.footer-links h3 {
    color: #EAF3FF;
    margin-bottom: 12px;
    font-size: 17px;
}
.footer-links a {
    display: block;
    color: rgba(234,243,255,.78);
    margin: 8px 0;
}
.footer-links a:hover { color: #FFFFFF; }
.footer-notice {
    max-width: 1200px;
    margin: 0 auto;
    padding: 18px 22px 28px;
    border-top: 1px solid rgba(234,243,255,.15);
}
.drawer-mask,
.mobile-drawer {
    display: none;
}
body.drawer-open {
    overflow: hidden;
}
@media (max-width: 1060px) {
    .nav { display: none; }
    .menu-toggle { display: block; }
    .header-inner { justify-content: space-between; }
    .hero-grid,
    .page-header-grid,
    .split { grid-template-columns: 1fr; }
    .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .drawer-mask {
        position: fixed;
        inset: 0;
        background: rgba(36,52,71,.44);
        z-index: 1200;
    }
    .drawer-mask.open { display: block; }
    .mobile-drawer {
        position: fixed;
        top: 0;
        right: 0;
        width: min(360px, 86vw);
        height: 100vh;
        background: #F5F7FB;
        z-index: 1300;
        padding: 20px;
        transform: translateX(100%);
        transition: transform .25s ease;
        display: block;
        overflow-y: auto;
        box-shadow: -18px 0 35px rgba(36,52,71,.18);
    }
    .mobile-drawer.open { transform: translateX(0); }
    .drawer-top {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 20px;
    }
    .drawer-close {
        display: block;
        color: #4E5F7A;
        font-size: 32px;
        line-height: 1;
    }
    .drawer-links {
        display: grid;
        gap: 8px;
    }
    .drawer-links a {
        color: #4E5F7A;
        font-weight: 800;
        padding: 12px 14px;
        border-radius: 14px;
    }
    .drawer-btn {
        width: 100%;
        margin-top: 18px;
    }
}
@media (max-width: 720px) {
    .site-main { padding-top: 78px; }
    .header-inner { min-height: 64px; padding: 10px 16px; }
    .brand-logo img { width: 116px; }
    .header-btn { min-height: 40px; padding: 0 18px; }
    .hero-section,
    .page-header { margin: 18px 14px 24px; }
    .hero-grid,
    .page-header { padding: 24px; }
    .container { padding: 0 14px; }
    .grid-2,
    .grid-3,
    .grid-4 { grid-template-columns: 1fr; }
    .section-head { display: block; }
    .footer-inner { grid-template-columns: 1fr; }
    .footer-links { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .card,
    .zone-card,
    .info-card,
    .review-card,
    .notice-card,
    .step-card,
    .faq-card,
    .content-block,
    .app-section { padding: 20px; }
}
@media (max-width: 460px) {
    .footer-links { grid-template-columns: 1fr; }
    .hero-grid { padding: 20px; }
    .hero-media, .page-media { padding: 10px; }
    .main-btn { width: 100%; }
}