* {
    box-sizing: border-box;
}

:root {
    --bg: #F5F7FF;
    --nav: rgba(12, 18, 40, 0.94);
    --title: #131A35;
    --primary: #5B6CFF;
    --deep: #16213E;
    --cyan: #00D4FF;
    --gold: #FFC857;
    --rose: #D94F70;
    --lavender: #7A5CFF;
    --text: #1F2740;
    --muted: #66708A;
    --subtle: #9AA4BA;
    --card: #FFFFFF;
    --dark-card: #11182F;
    --soft-blue: #EFF8FF;
    --border: rgba(91, 108, 255, 0.18);
    --shadow: 0 20px 46px rgba(25, 43, 91, 0.14);
    --gradient: linear-gradient(135deg, #5B6CFF 0%, #7A5CFF 48%, #00D4FF 100%);
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.75;
    overflow-x: hidden;
}

body.drawer-open {
    overflow: hidden;
}

img {
    max-width: 100%;
    height: auto;
}

a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    color: var(--lavender);
}

button,
a {
    -webkit-tap-highlight-color: transparent;
}

button {
    font: inherit;
}

h1,
h2,
h3,
h4,
.section-title {
    margin-top: 0;
    color: var(--title);
    line-height: 1.28;
}

p {
    margin: 0 0 1em;
}

.site-header {
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 9999;
    background: var(--nav);
    backdrop-filter: blur(12px);
    box-shadow: 0 8px 26px rgba(25, 43, 91, 0.16);
}

.header-inner {
    width: min(1280px, calc(100% - 40px));
    min-height: 72px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.site-logo,
.drawer-brand,
.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: #FFFFFF;
    white-space: nowrap;
}

.site-logo img {
    width: auto;
    max-height: 44px;
    display: block;
}

.site-logo strong {
    font-size: 20px;
    letter-spacing: .04em;
}

.nav-core {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex: 1;
}

.nav-core a {
    color: #EEF2FF;
    border-radius: 999px;
    padding: 8px 12px;
    white-space: nowrap;
    font-size: 15px;
}

.nav-core a:hover,
.nav-core a.active {
    color: #FFFFFF;
    background: rgba(0, 212, 255, 0.16);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.main-btn,
.secondary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    border-radius: 999px;
    padding: 10px 22px;
    font-weight: 700;
    transition: transform .2s ease, box-shadow .2s ease;
}

.main-btn {
    background: var(--gradient);
    color: #FFFFFF;
    box-shadow: 0 14px 32px rgba(91, 108, 255, 0.22);
}

.main-btn:hover {
    color: #FFFFFF;
    transform: translateY(-2px);
    box-shadow: 0 18px 34px rgba(91, 108, 255, 0.3);
}

.secondary-btn {
    color: var(--primary);
    background: #FFFFFF;
    border: 1px solid var(--border);
}

.menu-toggle {
    width: 44px;
    height: 44px;
    border: 0;
    border-radius: 14px;
    background: rgba(255, 255, 255, .1);
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
}

.menu-toggle span {
    width: 20px;
    height: 2px;
    background: #FFFFFF;
    border-radius: 4px;
}

.mobile-menu-toggle {
    display: none;
}

.drawer-overlay {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: rgba(5, 9, 24, .58);
    opacity: 0;
    visibility: hidden;
    transition: opacity .25s ease, visibility .25s ease;
}

.site-drawer {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 10001;
    width: min(390px, 92vw);
    height: 100dvh;
    padding: 28px;
    background: #10172E;
    color: #EEF2FF;
    transform: translateX(105%);
    transition: transform .28s ease;
    overflow-y: auto;
}

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

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

.drawer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.drawer-brand img,
.footer-logo img {
    width: auto;
    max-height: 38px;
}

.drawer-brand span,
.footer-logo span {
    font-size: 20px;
    font-weight: 800;
}

.drawer-close {
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, .1);
    color: #FFFFFF;
    font-size: 28px;
    cursor: pointer;
}

.drawer-intro {
    color: #BFC8E6;
    font-size: 14px;
    margin: 22px 0;
}

.drawer-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.drawer-nav a {
    padding: 12px 14px;
    border: 1px solid rgba(255, 255, 255, .1);
    border-radius: 14px;
    color: #EEF2FF;
    background: rgba(255, 255, 255, .04);
}

.drawer-nav a:hover {
    background: rgba(91, 108, 255, .24);
}

.drawer-note {
    margin-top: 22px;
    padding: 16px;
    border-radius: 16px;
    color: #C9D1EC;
    background: rgba(0, 212, 255, .08);
    font-size: 13px;
}

.container {
    width: min(1200px, calc(100% - 40px));
    margin: 0 auto;
}

.section {
    padding: 86px 0;
}

.section-tight {
    padding: 56px 0;
}

.section-head {
    max-width: 760px;
    margin: 0 auto 38px;
    text-align: center;
}

.section-kicker,
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    color: #A16D00;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.section-kicker::before,
.eyebrow::before {
    content: "";
    width: 24px;
    height: 3px;
    border-radius: 99px;
    background: var(--gold);
}

.section-title {
    font-size: clamp(30px, 4vw, 48px);
    margin-bottom: 16px;
}

.section-subtitle {
    color: var(--muted);
    font-size: 17px;
}

.hero {
    position: relative;
    overflow: hidden;
    padding: 88px 0 70px;
    background:
        radial-gradient(circle at 12% 20%, rgba(122, 92, 255, .20), transparent 28%),
        radial-gradient(circle at 88% 14%, rgba(0, 212, 255, .18), transparent 26%),
        linear-gradient(135deg, #F8F4FF 0%, #EEF8FF 52%, #FFF1F7 100%);
}

.hero::after {
    content: "";
    position: absolute;
    width: 260px;
    height: 260px;
    right: 8%;
    bottom: -150px;
    border-radius: 50%;
    border: 42px solid rgba(91, 108, 255, .08);
}

.hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.02fr .98fr;
    gap: 58px;
    align-items: center;
}

.hero-copy h1 {
    margin-bottom: 18px;
    font-size: clamp(52px, 8vw, 84px);
    letter-spacing: -.04em;
}

.hero-copy .hero-subtitle {
    margin-bottom: 18px;
    color: var(--primary);
    font-size: clamp(22px, 3vw, 34px);
    font-weight: 800;
}

.hero-copy .hero-description {
    max-width: 660px;
    color: var(--muted);
    font-size: 17px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.hero-points {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 26px;
}

.hero-points span {
    padding: 8px 13px;
    border-radius: 999px;
    color: var(--deep);
    background: rgba(255, 255, 255, .72);
    border: 1px solid rgba(91, 108, 255, .14);
    font-size: 14px;
}

.hero-visual {
    position: relative;
    padding: 22px;
}

.hero-visual::before {
    content: "";
    position: absolute;
    inset: 7% 12% 2%;
    border-radius: 48px;
    background: var(--gradient);
    filter: blur(34px);
    opacity: .22;
}

.hero-visual img {
    position: relative;
    width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: 32px;
    box-shadow: var(--shadow);
}

.highlight-strip {
    position: relative;
    z-index: 2;
    margin-top: -22px;
}

.highlight-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

.highlight-item {
    padding: 24px;
    border-radius: 20px;
    background: rgba(255, 255, 255, .94);
    border: 1px solid var(--border);
    box-shadow: 0 16px 38px rgba(25, 43, 91, .11);
}

.highlight-item strong {
    display: block;
    margin-bottom: 8px;
    color: var(--title);
    font-size: 18px;
}

.highlight-item p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.channel-cloud {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

.channel-pill {
    flex: 1 1 205px;
    max-width: 270px;
    padding: 16px 18px;
    border-radius: 999px;
    background: #FFFFFF;
    border: 1px solid var(--border);
    box-shadow: 0 12px 28px rgba(25, 43, 91, .08);
}

.channel-pill strong {
    display: block;
    color: var(--title);
    font-size: 15px;
}

.channel-pill small {
    display: block;
    margin: 2px 0 4px;
    color: var(--muted);
    line-height: 1.45;
}

.channel-pill a {
    font-size: 13px;
    font-weight: 700;
}

.card,
.zone-card,
.info-card,
.review-card,
.faq-item,
.notice-card,
.feature-card {
    background: #FFFFFF;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    border-radius: 22px;
}

.split-section,
.two-column {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
    align-items: center;
}

.brand-panel {
    padding: 36px;
}

.brand-panel p {
    color: var(--muted);
}

.content-img {
    width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: 28px;
    box-shadow: var(--shadow);
}

.media-card {
    display: grid;
    grid-template-columns: .9fr 1.1fr;
    gap: 30px;
    padding: 30px;
    align-items: center;
}

.media-card img,
.zone-card img,
.app-section img,
.feature-card img {
    width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: 18px;
}

.media-card p,
.zone-card p,
.info-card p,
.feature-card p {
    color: var(--muted);
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 8px;
    color: var(--primary);
    font-weight: 700;
}

.text-link::after {
    content: "→";
}

.zone-card {
    height: 100%;
    padding: 28px;
}

.zone-card h3 {
    margin: 18px 0 12px;
    font-size: 25px;
}

.service-points {
    display: grid;
    gap: 10px;
    margin: 18px 0;
    padding: 0;
    list-style: none;
}

.service-points li {
    position: relative;
    padding-left: 22px;
    color: var(--muted);
}

.service-points li::before {
    content: "";
    position: absolute;
    left: 0;
    top: .7em;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gradient);
}

.three-column {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.info-card {
    padding: 24px;
}

.info-card img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: contain;
    border-radius: 16px;
    background: #F7F9FF;
}

.info-card h3 {
    margin: 18px 0 10px;
    font-size: 22px;
}

.safety-zone {
    background: linear-gradient(135deg, #121A34 0%, #182448 58%, #15203E 100%);
    color: #ECF1FF;
}

.safety-zone h2,
.safety-zone h3 {
    color: #FFFFFF;
}

.safety-zone .section-subtitle,
.safety-zone p,
.safety-zone li {
    color: #C6CFEA;
}

.safety-card {
    padding: 28px;
    border-radius: 24px;
    background: rgba(255, 255, 255, .06);
    border: 1px solid rgba(255, 255, 255, .12);
}

.review-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.review-card {
    padding: 24px;
}

.review-card p {
    color: var(--muted);
}

.review-card strong {
    display: block;
    color: var(--title);
}

.review-card small {
    color: var(--subtle);
}

.faq-list {
    display: grid;
    gap: 14px;
    max-width: 920px;
    margin: 0 auto;
}

.faq-item {
    padding: 22px 24px;
}

.faq-item h3 {
    margin-bottom: 8px;
    font-size: 19px;
}

.faq-item p {
    margin: 0;
    color: var(--muted);
}

.compliance-band {
    padding: 32px;
    border-radius: 28px;
    background: linear-gradient(135deg, #FFF4D6 0%, #F4F0FF 48%, #EAF7FF 100%);
    border: 1px solid rgba(255, 200, 87, .34);
}

.compliance-band h2 {
    margin-bottom: 12px;
}

.compliance-band p {
    color: #505B76;
}

.page-hero {
    padding: 76px 0 56px;
    background:
        radial-gradient(circle at 12% 10%, rgba(122, 92, 255, .18), transparent 28%),
        radial-gradient(circle at 90% 18%, rgba(0, 212, 255, .16), transparent 26%),
        linear-gradient(135deg, #F7F2FF 0%, #F0FAFF 100%);
}

.page-hero-grid {
    display: grid;
    grid-template-columns: 1.06fr .94fr;
    gap: 50px;
    align-items: center;
}

.page-hero h1 {
    margin-bottom: 18px;
    font-size: clamp(40px, 6vw, 66px);
}

.page-hero p {
    color: var(--muted);
    font-size: 17px;
}

.page-hero img {
    width: 100%;
    max-height: 430px;
    object-fit: contain;
    border-radius: 28px;
    box-shadow: var(--shadow);
}

.page-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr);
    gap: 28px;
    align-items: start;
}

.article-card {
    padding: 34px;
}

.article-card h2 {
    margin-top: 30px;
    margin-bottom: 12px;
    font-size: 28px;
}

.article-card h2:first-child {
    margin-top: 0;
}

.article-card p {
    color: #56617C;
}

.sidebar-stack {
    display: grid;
    gap: 18px;
    position: sticky;
    top: 96px;
}

.sidebar-card {
    padding: 24px;
    border-radius: 22px;
    background: #FFFFFF;
    border: 1px solid var(--border);
    box-shadow: 0 16px 36px rgba(25, 43, 91, .1);
}

.sidebar-card h3 {
    margin-bottom: 12px;
}

.sidebar-card p,
.sidebar-card li {
    color: var(--muted);
    font-size: 14px;
}

.sidebar-card ul {
    margin: 0;
    padding-left: 20px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.feature-card {
    padding: 24px;
}

.feature-card h3 {
    margin: 16px 0 10px;
}

.step-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    counter-reset: step;
}

.step-card {
    counter-increment: step;
    padding: 24px;
    border-radius: 22px;
    background: #FFFFFF;
    border: 1px solid var(--border);
    box-shadow: 0 14px 34px rgba(25, 43, 91, .09);
}

.step-card::before {
    content: counter(step, decimal-leading-zero);
    display: inline-flex;
    margin-bottom: 12px;
    color: var(--primary);
    font-size: 24px;
    font-weight: 900;
}

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

.step-card p {
    color: var(--muted);
}

.quote-card {
    padding: 28px;
    border-radius: 24px;
    background: linear-gradient(135deg, #11182F 0%, #182548 100%);
    color: #EAF0FF;
}

.quote-card p {
    font-size: 18px;
}

.quote-card strong {
    color: #FFFFFF;
}

.cta-band {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 34px;
    border-radius: 28px;
    background: linear-gradient(135deg, #EAE9FF 0%, #E8FAFF 52%, #FFF0F5 100%);
    border: 1px solid var(--border);
}

.cta-band h2 {
    margin-bottom: 8px;
}

.cta-band p {
    margin: 0;
    color: var(--muted);
}

.site-footer {
    padding: 64px 0 24px;
    background: #0B1024;
    color: #EEF2FF;
}

.footer-grid,
.footer-notice,
.footer-bottom {
    width: min(1200px, calc(100% - 40px));
    margin-left: auto;
    margin-right: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.7fr repeat(3, 1fr);
    gap: 36px;
}

.footer-grid h2 {
    margin-bottom: 14px;
    color: #FFFFFF;
    font-size: 16px;
}

.footer-grid a {
    display: block;
    margin: 8px 0;
    color: #BCC6E6;
}

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

.footer-brand p {
    max-width: 420px;
    color: #AEB8D8;
}

.footer-brand .footer-logo {
    display: inline-flex;
    margin-bottom: 14px;
}

.footer-brand .footer-app-link {
    color: #86E8FF;
    font-weight: 700;
}

.footer-notice {
    margin-top: 38px;
    padding: 20px 22px;
    border-radius: 18px;
    background: rgba(255, 255, 255, .05);
    border: 1px solid rgba(255, 255, 255, .08);
}

.footer-notice p {
    margin: 0;
    color: #AFB9D9;
    font-size: 13px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    margin-top: 26px;
    padding-top: 22px;
    border-top: 1px solid rgba(255, 255, 255, .08);
    color: #8894B7;
    font-size: 13px;
}

.mobile-bottom-nav {
    display: none;
}

@media (max-width: 1060px) {
    .nav-core {
        gap: 2px;
    }
    .nav-core a {
        padding: 8px 9px;
        font-size: 14px;
    }
    .site-logo strong {
        display: none;
    }
    .hero-grid,
    .page-hero-grid {
        gap: 34px;
    }
    .highlight-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 860px) {
    .header-inner {
        width: min(100% - 24px, 1280px);
        min-height: 64px;
    }
    .nav-core,
    .desktop-menu-toggle {
        display: none;
    }
    .mobile-menu-toggle {
        display: inline-flex;
    }
    .site-logo {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }
    .site-logo strong {
        display: none;
    }
    .header-actions {
        margin-left: auto;
    }
    .header-cta {
        min-height: 40px;
        padding: 8px 15px;
        font-size: 13px;
    }
    .hero,
    .page-hero {
        padding-top: 60px;
    }
    .hero-grid,
    .page-hero-grid,
    .split-section,
    .two-column,
    .media-card,
    .page-grid {
        grid-template-columns: 1fr;
    }
    .hero-copy {
        text-align: center;
    }
    .hero-copy .hero-description {
        margin-left: auto;
        margin-right: auto;
    }
    .hero-actions,
    .hero-points {
        justify-content: center;
    }
    .hero-visual {
        max-width: 650px;
        margin: 0 auto;
    }
    .three-column,
    .review-grid,
    .feature-grid,
    .step-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .sidebar-stack {
        position: static;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .footer-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    body {
        padding-bottom: 68px;
    }
    .container,
    .footer-grid,
    .footer-notice,
    .footer-bottom {
        width: min(100% - 28px, 1200px);
    }
    .section {
        padding: 64px 0;
    }
    .section-tight {
        padding: 42px 0;
    }
    .hero {
        padding: 52px 0 48px;
    }
    .hero-copy h1 {
        font-size: 52px;
    }
    .hero-copy .hero-subtitle {
        font-size: 23px;
    }
    .highlight-strip {
        margin-top: -10px;
    }
    .highlight-grid,
    .three-column,
    .review-grid,
    .feature-grid,
    .step-list,
    .sidebar-stack,
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .highlight-item,
    .zone-card,
    .info-card,
    .review-card,
    .feature-card,
    .article-card {
        padding: 22px;
    }
    .channel-pill {
        flex-basis: 100%;
        max-width: none;
        border-radius: 20px;
    }
    .media-card {
        padding: 20px;
    }
    .cta-band {
        align-items: flex-start;
        flex-direction: column;
        padding: 25px;
    }
    .footer-bottom {
        flex-direction: column;
    }
    .site-footer {
        padding-bottom: 32px;
    }
    .mobile-bottom-nav {
        position: fixed;
        left: 12px;
        right: 12px;
        bottom: 10px;
        z-index: 9998;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        min-height: 56px;
        padding: 7px 8px calc(7px + env(safe-area-inset-bottom));
        border-radius: 20px;
        background: rgba(12, 18, 40, .95);
        box-shadow: 0 16px 36px rgba(5, 9, 24, .28);
        backdrop-filter: blur(14px);
    }
    .mobile-bottom-nav a {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        color: #DDE4FA;
        font-size: 11px;
        line-height: 1.2;
    }
    .mobile-bottom-nav span {
        margin-bottom: 2px;
        color: #86E8FF;
        font-size: 19px;
    }
    .site-drawer {
        left: 0;
        right: auto;
        transform: translateX(-105%);
    }
    .drawer-open .site-drawer {
        transform: translateX(0);
    }
    .drawer-nav {
        grid-template-columns: 1fr;
    }
}