:root {
    --primary: #2980FE;
    --primary-soft: #EAF3FF;
    --primary-light: #F4F8FF;
    --white: #FFFFFF;
    --text: #172033;
    --muted: #5F6C82;
    --light-muted: #8A96A8;
    --line: #E4EAF3;
    --panel: #F7F9FC;
    --blue-gray: #F2F6FB;
    --shadow: 0 18px 50px rgba(18, 46, 90, .08);
    --soft-shadow: 0 10px 30px rgba(41, 128, 254, .12);
    --radius: 28px;
    --radius-lg: 34px;
    --container: 1180px;
}
* {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    color: var(--text);
    background: linear-gradient(180deg, #FFFFFF 0%, #F7FAFF 42%, #FFFFFF 100%);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", Arial, sans-serif;
    line-height: 1.75;
    overflow-x: hidden;
}
a {
    color: inherit;
    text-decoration: none;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
p {
    margin: 0 0 14px;
    color: var(--muted);
}
h1, h2, h3, h4 {
    margin: 0;
    line-height: 1.2;
    color: var(--text);
}
ul, ol {
    margin: 0;
    padding: 0;
}
li {
    list-style: none;
}
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255,255,255,.86);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(228,234,243,.75);
}
.nav-wrap {
    width: min(100% - 32px, var(--container));
    margin: 0 auto;
    min-height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}
.logo, .footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    color: var(--text);
    letter-spacing: .2px;
}
.logo img, .footer-logo img {
    width: 38px;
    height: 38px;
    object-fit: contain;
}
.site-nav {
    position: absolute;
    left: 16px;
    right: 16px;
    top: 70px;
    display: none;
    flex-direction: column;
    padding: 14px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 22px;
    box-shadow: var(--shadow);
}
.site-nav a {
    padding: 12px 14px;
    border-radius: 14px;
    color: var(--muted);
    font-size: 15px;
    font-weight: 650;
}
.site-nav a:hover,
.site-nav a.active {
    color: var(--primary);
    background: var(--primary-soft);
}
.nav-toggle {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}
.nav-toggle-label {
    width: 42px;
    height: 42px;
    border-radius: 14px;
    border: 1px solid var(--line);
    background: var(--white);
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
}
.nav-toggle-label span {
    width: 18px;
    height: 2px;
    background: var(--text);
    border-radius: 3px;
}
.nav-toggle:checked ~ .site-nav {
    display: flex;
}
.content-container,
.section-container {
    width: min(100% - 32px, var(--container));
    margin: 0 auto;
}
.launch-hero {
    position: relative;
    width: min(100% - 32px, var(--container));
    margin: 22px auto 0;
    padding: 44px 22px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background:
        radial-gradient(circle at 86% 18%, rgba(41,128,254,.16), transparent 28%),
        linear-gradient(135deg, #FFFFFF 0%, #F2F7FF 100%);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}
.launch-hero::after {
    content: "";
    position: absolute;
    right: -120px;
    bottom: -140px;
    width: 360px;
    height: 360px;
    background: rgba(41,128,254,.08);
    border-radius: 999px;
    pointer-events: none;
}
.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    gap: 28px;
    align-items: center;
}
.badge,
.category-badge,
.pill {
    display: inline-flex;
    width: fit-content;
    align-items: center;
    gap: 8px;
    padding: 7px 12px;
    border-radius: 999px;
    background: var(--primary-soft);
    color: var(--primary);
    font-size: 13px;
    font-weight: 750;
}
.launch-hero h1 {
    margin-top: 16px;
    font-size: clamp(34px, 9vw, 72px);
    letter-spacing: -1.2px;
}
.hero-lead {
    margin-top: 18px;
    max-width: 620px;
    font-size: 17px;
    color: var(--muted);
}
.hero-actions {
    margin-top: 26px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}
.download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 24px;
    border-radius: 999px;
    background: var(--primary);
    color: var(--white);
    font-weight: 800;
    box-shadow: var(--soft-shadow);
    border: 1px solid rgba(41,128,254,.3);
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 34px rgba(41, 128, 254, .22);
    background: #1E73F0;
}
.safe-tags,
.floating-tags,
.inline-links,
.check-list,
.mini-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.safe-tags {
    margin-top: 22px;
}
.safe-tags span,
.floating-tags span,
.check-list span,
.mini-list span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: rgba(255,255,255,.82);
    color: var(--muted);
    font-size: 13px;
    font-weight: 650;
}
.hero-visual,
.app-showcase {
    position: relative;
}
.phone-stage {
    position: relative;
    width: min(360px, 82vw);
    margin: 0 auto;
    padding: 18px;
    border-radius: 40px;
    background: linear-gradient(180deg, #FFFFFF, #EDF5FF);
    border: 1px solid var(--line);
    box-shadow: 0 24px 70px rgba(41,128,254,.14);
}
.phone-stage img {
    width: 100%;
    border-radius: 30px;
}
.floating-tags {
    margin-top: 18px;
    justify-content: center;
}
.floating-tags span {
    background: var(--white);
    color: var(--primary);
    box-shadow: 0 10px 24px rgba(21, 56, 105, .08);
}
.highlight-bar,
.category-grid,
.risk-grid,
.faq-grid,
.basic-grid,
.process-steps,
.app-category-center {
    display: grid;
    gap: 14px;
}
.section-pad {
    padding: 52px 0;
}
.section-head {
    margin-bottom: 22px;
    display: grid;
    gap: 10px;
}
.section-head h2 {
    font-size: clamp(26px, 5vw, 42px);
    letter-spacing: -.5px;
}
.section-head p {
    max-width: 760px;
    font-size: 16px;
}
.highlight-card,
.category-card,
.risk-card,
.faq-item,
.info-card,
.step-card,
.notice-card,
.guide-card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 22px;
    padding: 18px;
    box-shadow: 0 10px 28px rgba(31, 55, 93, .05);
}
.highlight-card {
    min-height: 154px;
}
.highlight-card small,
.category-card small,
.risk-card small,
.step-card small {
    display: inline-flex;
    margin-bottom: 10px;
    color: var(--primary);
    font-weight: 800;
}
.highlight-card h3,
.category-card h3,
.risk-card h3,
.faq-item h3,
.info-card h3,
.step-card h3,
.notice-card h3,
.guide-card h3 {
    font-size: 19px;
    margin-bottom: 8px;
}
.card-link,
.inline-link {
    color: var(--primary);
    font-weight: 800;
}
.big-feature-card,
.launch-card {
    position: relative;
    display: grid;
    gap: 24px;
    align-items: center;
    margin: 22px 0;
    padding: 24px;
    border-radius: var(--radius);
    background: var(--white);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    overflow: hidden;
}
.big-feature-card.blue-soft {
    background:
        radial-gradient(circle at 15% 15%, rgba(41,128,254,.10), transparent 28%),
        linear-gradient(135deg, #FFFFFF, #F5F9FF);
}
.big-feature-card.gray-soft {
    background: linear-gradient(135deg, #F8FAFD, #FFFFFF);
}
.big-feature-card h2 {
    font-size: clamp(26px, 5vw, 46px);
}
.feature-copy p {
    font-size: 16px;
}
.feature-media {
    border-radius: 28px;
    padding: 16px;
    background: linear-gradient(180deg, #FFFFFF, #F1F6FF);
    border: 1px solid var(--line);
    box-shadow: inset 0 1px 0 rgba(255,255,255,.9);
}
.feature-media img {
    margin: 0 auto;
    border-radius: 24px;
}
.feature-points {
    display: grid;
    gap: 10px;
    margin: 18px 0;
}
.feature-points li,
.check-panel li {
    position: relative;
    padding-left: 24px;
    color: var(--muted);
}
.feature-points li::before,
.check-panel li::before {
    content: "";
    position: absolute;
    left: 0;
    top: .75em;
    width: 9px;
    height: 9px;
    border-radius: 999px;
    background: var(--primary);
}
.process-steps {
    counter-reset: step;
}
.step-card {
    position: relative;
    padding-top: 48px;
}
.step-card::before {
    counter-increment: step;
    content: counter(step, decimal-leading-zero);
    position: absolute;
    top: 16px;
    left: 18px;
    color: var(--primary);
    font-weight: 900;
    font-size: 17px;
}
.risk-card {
    border-left: 4px solid var(--primary);
}
.risk-card strong {
    display: block;
    margin: 10px 0 6px;
    color: var(--text);
}
.app-category-center {
    grid-template-columns: 1fr;
}
.category-card {
    min-height: 162px;
}
.category-card.featured {
    background:
        radial-gradient(circle at 100% 0%, rgba(41,128,254,.12), transparent 34%),
        var(--white);
}
.faq-item details {
    margin: 0;
}
.faq-item summary {
    cursor: pointer;
    color: var(--text);
    font-weight: 800;
    list-style: none;
}
.faq-item summary::-webkit-details-marker {
    display: none;
}
.faq-item p {
    margin-top: 10px;
}
.cta-section {
    width: min(100% - 32px, var(--container));
    margin: 28px auto 64px;
    padding: 34px 22px;
    border-radius: var(--radius-lg);
    background:
        radial-gradient(circle at 80% 16%, rgba(41,128,254,.16), transparent 30%),
        linear-gradient(135deg, #F3F8FF, #FFFFFF);
    border: 1px solid var(--line);
    text-align: center;
    box-shadow: var(--shadow);
}
.cta-section h2 {
    font-size: clamp(26px, 5vw, 44px);
}
.cta-section p {
    margin: 12px auto 22px;
    max-width: 720px;
}
.page-hero {
    width: min(100% - 32px, var(--container));
    margin: 26px auto 0;
    padding: 38px 22px;
    border-radius: var(--radius-lg);
    background:
        radial-gradient(circle at 85% 15%, rgba(41,128,254,.13), transparent 30%),
        linear-gradient(135deg, #FFFFFF, #F5F9FF);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}
.page-hero h1 {
    margin-top: 14px;
    font-size: clamp(30px, 7vw, 58px);
    letter-spacing: -.8px;
}
.page-hero .page-summary {
    max-width: 760px;
    margin-top: 16px;
    font-size: 17px;
}
.page-layout {
    width: min(100% - 32px, var(--container));
    margin: 30px auto 64px;
    display: grid;
    gap: 20px;
}
.article-card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: var(--shadow);
}
.article-card h2 {
    font-size: clamp(24px, 5vw, 36px);
    margin-bottom: 14px;
}
.article-card h3 {
    font-size: 22px;
    margin: 22px 0 10px;
}
.sidebar {
    display: grid;
    gap: 14px;
    align-content: start;
}
.notice-card {
    background: linear-gradient(180deg, #FFFFFF, #F7FAFF);
}
.check-panel {
    margin: 16px 0;
    display: grid;
    gap: 10px;
}
.number-list {
    margin: 16px 0;
    padding-left: 0;
    counter-reset: item;
    display: grid;
    gap: 12px;
}
.number-list li {
    position: relative;
    padding: 14px 14px 14px 50px;
    border-radius: 18px;
    border: 1px solid var(--line);
    background: var(--primary-light);
    color: var(--muted);
}
.number-list li::before {
    counter-increment: item;
    content: counter(item);
    position: absolute;
    left: 14px;
    top: 14px;
    width: 24px;
    height: 24px;
    border-radius: 999px;
    display: grid;
    place-items: center;
    background: var(--primary);
    color: var(--white);
    font-weight: 900;
    font-size: 13px;
}
.download-panel {
    margin-top: 22px;
    padding: 18px;
    border-radius: 22px;
    background: var(--blue-gray);
    border: 1px solid var(--line);
    display: grid;
    gap: 12px;
    justify-items: start;
}
.download-panel p {
    margin-bottom: 0;
}
.basic-grid {
    grid-template-columns: 1fr;
}
.site-footer {
    background: #F4F7FB;
    border-top: 1px solid var(--line);
    padding: 40px 0 24px;
}
.footer-grid {
    width: min(100% - 32px, var(--container));
    margin: 0 auto;
    display: grid;
    gap: 22px;
}
.footer-grid h3 {
    margin-bottom: 10px;
    font-size: 16px;
}
.footer-grid a:not(.footer-logo) {
    display: block;
    padding: 4px 0;
    color: var(--muted);
    font-size: 14px;
}
.footer-bottom {
    width: min(100% - 32px, var(--container));
    margin: 28px auto 0;
    padding-top: 18px;
    border-top: 1px solid var(--line);
    display: flex;
    flex-direction: column;
    gap: 8px;
    color: var(--light-muted);
    font-size: 13px;
}
.gradient-background {
    background: linear-gradient(135deg, #F4F8FF 0%, #FFFFFF 100%);
}
.safety-panel {
    padding: 20px;
    border-radius: var(--radius);
    background: var(--primary-light);
    border: 1px solid #D9E9FF;
}
.wallet-feature .feature-media,
.swap-feature .feature-media {
    background: linear-gradient(180deg, #FFFFFF, #EDF5FF);
}
.cold-wallet-feature .feature-media,
.dapp-feature .feature-media {
    background: linear-gradient(180deg, #F9FBFE, #FFFFFF);
}
@media (min-width: 680px) {
    .highlight-bar,
    .category-grid,
    .risk-grid,
    .basic-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .app-category-center,
    .process-steps {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .launch-hero {
        padding: 56px 42px;
    }
    .page-hero,
    .article-card {
        padding: 34px;
    }
}
@media (min-width: 980px) {
    .nav-toggle-label {
        display: none;
    }
    .site-nav {
        position: static;
        display: flex;
        flex-direction: row;
        align-items: center;
        gap: 2px;
        padding: 0;
        border: 0;
        background: transparent;
        box-shadow: none;
    }
    .site-nav a {
        padding: 9px 10px;
        font-size: 14px;
    }
    .hero-content {
        grid-template-columns: 1.05fr .95fr;
    }
    .launch-hero {
        margin-top: 34px;
        padding: 72px 64px;
    }
    .highlight-bar {
        grid-template-columns: repeat(6, minmax(0, 1fr));
    }
    .big-feature-card {
        grid-template-columns: 1fr 1fr;
        padding: 42px;
        gap: 44px;
    }
    .big-feature-card.reverse .feature-copy {
        order: 2;
    }
    .big-feature-card.reverse .feature-media {
        order: 1;
    }
    .app-category-center {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
    .app-category-center .featured {
        grid-column: span 2;
    }
    .process-steps {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
    .risk-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
    .faq-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .category-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
    .basic-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
    .page-layout {
        grid-template-columns: minmax(0, 1fr) 320px;
        align-items: start;
    }
    .footer-grid {
        grid-template-columns: 1.4fr repeat(3, 1fr);
    }
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
    }
}
@media (min-width: 1180px) {
    .site-nav a {
        padding: 10px 13px;
    }
}
@media (max-width: 420px) {
    .content-container,
    .section-container,
    .launch-hero,
    .page-hero,
    .page-layout,
    .cta-section,
    .footer-grid,
    .footer-bottom,
    .nav-wrap {
        width: min(100% - 22px, var(--container));
    }
    .download-btn {
        width: 100%;
    }
    .hero-actions {
        align-items: stretch;
    }
    .highlight-bar {
        grid-template-columns: 1fr;
    }
}