* {
    box-sizing: border-box;
}

:root {
    --primary: #2980FE;
    --primary-soft: #EAF3FF;
    --primary-light: #F4F8FF;
    --white: #FFFFFF;
    --bg: #F6F8FC;
    --bg-blue: #F3F8FF;
    --line: #E5EAF2;
    --text: #1F2937;
    --muted: #667085;
    --deep: #111827;
    --shadow: 0 18px 45px rgba(31, 41, 55, 0.08);
    --radius-lg: 28px;
    --radius-md: 22px;
    --radius-sm: 16px;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;
    color: var(--text);
    background: linear-gradient(180deg, #FFFFFF 0%, #F7FAFF 45%, #FFFFFF 100%);
    line-height: 1.7;
    overflow-x: hidden;
}

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

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

.content-container {
    width: min(100% - 32px, 1180px);
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 30;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(229, 234, 242, 0.85);
}

.nav-wrap {
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.logo,
.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    color: var(--deep);
    letter-spacing: 0.02em;
}

.logo img,
.footer-logo img {
    width: 36px;
    height: 36px;
    object-fit: contain;
    border-radius: 12px;
}

.nav-toggle {
    border: 1px solid var(--line);
    background: var(--white);
    border-radius: 999px;
    padding: 8px 14px;
    color: var(--deep);
    font-weight: 700;
}

.site-nav {
    display: none;
    position: absolute;
    left: 16px;
    right: 16px;
    top: 72px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 12px;
    box-shadow: var(--shadow);
}

.site-nav.open {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.site-nav a {
    padding: 10px 12px;
    color: var(--muted);
    border-radius: 14px;
    font-size: 14px;
    font-weight: 650;
}

.site-nav a.active,
.site-nav a:hover {
    color: var(--primary);
    background: var(--primary-soft);
}

.page-main {
    min-height: 65vh;
}

.launch-hero {
    position: relative;
    padding: 56px 0 34px;
    overflow: hidden;
}

.launch-hero::before,
.launch-hero::after {
    content: "";
    position: absolute;
    border-radius: 999px;
    pointer-events: none;
    filter: blur(10px);
}

.launch-hero::before {
    width: 260px;
    height: 260px;
    background: rgba(41, 128, 254, 0.13);
    top: 16px;
    right: -90px;
}

.launch-hero::after {
    width: 180px;
    height: 180px;
    background: rgba(229, 234, 242, 0.7);
    bottom: 0;
    left: -70px;
}

.hero-grid {
    position: relative;
    display: grid;
    gap: 34px;
    align-items: center;
}

.eyebrow,
.category-badge,
.mini-tag {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    gap: 8px;
    padding: 7px 12px;
    border-radius: 999px;
    background: var(--primary-soft);
    color: var(--primary);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.02em;
}

h1,
h2,
h3 {
    color: var(--deep);
    line-height: 1.18;
    margin: 0;
}

h1 {
    font-size: clamp(34px, 8vw, 72px);
    letter-spacing: -0.045em;
    margin-top: 16px;
}

h2 {
    font-size: clamp(26px, 4vw, 44px);
    letter-spacing: -0.035em;
}

h3 {
    font-size: 20px;
}

.lead {
    font-size: 17px;
    color: var(--muted);
    margin: 18px 0 24px;
    max-width: 680px;
}

.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;
    letter-spacing: 0.02em;
    box-shadow: 0 12px 28px rgba(41, 128, 254, 0.28);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    white-space: nowrap;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 34px rgba(41, 128, 254, 0.34);
}

.security-tags,
.hero-pills,
.feature-points,
.check-list,
.inline-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 0;
    margin: 20px 0 0;
    list-style: none;
}

.security-tags li,
.hero-pills span,
.feature-points li,
.check-list li {
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.82);
    color: var(--muted);
    border-radius: 999px;
    padding: 8px 12px;
    font-size: 13px;
}

.hero-visual {
    position: relative;
    min-height: 400px;
    display: grid;
    place-items: center;
    padding: 20px;
    border-radius: 36px;
    background:
        radial-gradient(circle at 50% 18%, rgba(41, 128, 254, 0.2), transparent 33%),
        linear-gradient(145deg, #FFFFFF 0%, #EDF5FF 100%);
    border: 1px solid rgba(41, 128, 254, 0.12);
    box-shadow: var(--shadow);
}

.app-showcase {
    position: relative;
    width: min(78vw, 350px);
    margin: 0 auto;
}

.app-showcase img {
    margin: 0 auto;
    filter: drop-shadow(0 28px 38px rgba(31, 41, 55, 0.16));
}

.float-label {
    position: absolute;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid rgba(229, 234, 242, 0.9);
    color: var(--deep);
    font-size: 13px;
    font-weight: 750;
    box-shadow: 0 10px 24px rgba(31, 41, 55, 0.08);
}

.float-label.one { top: 12%; left: -4%; }
.float-label.two { top: 34%; right: -8%; }
.float-label.three { bottom: 24%; left: -10%; }
.float-label.four { bottom: 8%; right: 0; }

.section {
    padding: 54px 0;
}

.section-head {
    display: grid;
    gap: 12px;
    margin-bottom: 24px;
}

.section-head p {
    margin: 0;
    color: var(--muted);
    max-width: 740px;
}

.highlight-bar,
.category-grid,
.risk-grid,
.faq-grid,
.info-grid,
.cards-grid {
    display: grid;
    gap: 16px;
}

.highlight-card,
.category-card,
.risk-card,
.faq-item,
.info-card,
.step-card,
.tip-box,
.download-panel {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 20px;
    box-shadow: 0 10px 26px rgba(31, 41, 55, 0.045);
}

.highlight-card {
    display: grid;
    gap: 8px;
    min-height: 162px;
}

.highlight-card a,
.category-card a,
.inline-links a,
.related-card a,
.text-link {
    color: var(--primary);
    font-weight: 800;
}

.highlight-card p,
.category-card p,
.risk-card p,
.info-card p,
.step-card p,
.faq-item p,
.tip-box p,
.download-panel p {
    margin: 0;
    color: var(--muted);
}

.launch-card,
.big-feature-card {
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: var(--white);
    box-shadow: var(--shadow);
}

.big-feature-card {
    display: grid;
    gap: 24px;
    padding: 24px;
}

.big-feature-card .feature-copy {
    display: grid;
    align-content: center;
    gap: 16px;
}

.big-feature-card p {
    margin: 0;
    color: var(--muted);
}

.feature-visual {
    display: grid;
    place-items: center;
    min-height: 260px;
    border-radius: 24px;
    background: linear-gradient(145deg, var(--primary-light), #FFFFFF);
    border: 1px solid rgba(41, 128, 254, 0.08);
}

.feature-visual img {
    max-height: 350px;
    object-fit: contain;
    filter: drop-shadow(0 18px 28px rgba(31, 41, 55, 0.12));
}

.wallet-feature {
    background:
        radial-gradient(circle at top right, rgba(41, 128, 254, 0.1), transparent 32%),
        var(--white);
}

.cold-wallet-feature {
    background:
        linear-gradient(145deg, #F6F8FC 0%, #FFFFFF 100%);
}

.swap-feature {
    background:
        linear-gradient(145deg, #FFFFFF 0%, #F3F8FF 100%);
}

.dapp-feature {
    background:
        radial-gradient(circle at 10% 10%, rgba(41, 128, 254, 0.12), transparent 28%),
        var(--white);
}

.process-steps {
    display: grid;
    gap: 14px;
    counter-reset: step;
}

.step-card {
    position: relative;
    padding-left: 72px;
}

.step-card::before {
    counter-increment: step;
    content: counter(step, decimal-leading-zero);
    position: absolute;
    left: 18px;
    top: 20px;
    width: 38px;
    height: 38px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    color: var(--white);
    background: var(--primary);
    font-weight: 900;
    font-size: 13px;
}

.risk-card {
    border-left: 4px solid var(--primary);
}

.risk-card strong {
    color: var(--deep);
    display: block;
    margin-bottom: 6px;
}

.app-category-center {
    padding: 34px;
    border-radius: 34px;
    background: linear-gradient(145deg, var(--bg-blue), #FFFFFF);
    border: 1px solid var(--line);
}

.category-card {
    min-height: 168px;
}

.cta-section {
    text-align: center;
    padding: 60px 0 76px;
}

.cta-box {
    border-radius: 34px;
    background:
        radial-gradient(circle at top, rgba(41, 128, 254, 0.18), transparent 32%),
        linear-gradient(145deg, #FFFFFF 0%, #EEF6FF 100%);
    border: 1px solid rgba(41, 128, 254, 0.12);
    padding: 34px 20px;
    box-shadow: var(--shadow);
}

.cta-box p {
    color: var(--muted);
    max-width: 680px;
    margin: 14px auto 24px;
}

.inner-hero {
    padding: 52px 0 28px;
}

.inner-hero-grid {
    display: grid;
    gap: 22px;
    align-items: center;
}

.inner-hero-card {
    background: linear-gradient(145deg, #FFFFFF, #F4F8FF);
    border: 1px solid var(--line);
    border-radius: 34px;
    padding: 28px;
    box-shadow: var(--shadow);
}

.page-layout {
    display: grid;
    gap: 22px;
    padding: 20px 0 72px;
}

.article-card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 28px;
    padding: 24px;
    box-shadow: 0 12px 34px rgba(31, 41, 55, 0.05);
}

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

.article-card h2 {
    margin-top: 12px;
    font-size: clamp(24px, 4vw, 34px);
}

.side-panel {
    display: grid;
    gap: 16px;
    align-content: start;
}

.related-card {
    background: linear-gradient(145deg, #FFFFFF, #F5F9FF);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 18px;
}

.related-card p {
    margin: 8px 0 12px;
    color: var(--muted);
}

.note-list,
.number-list {
    display: grid;
    gap: 12px;
    margin: 18px 0;
    padding: 0;
    list-style: none;
}

.note-list li,
.number-list li {
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 14px;
    color: var(--muted);
}

.number-list {
    counter-reset: item;
}

.number-list li {
    position: relative;
    padding-left: 56px;
}

.number-list li::before {
    counter-increment: item;
    content: counter(item);
    position: absolute;
    left: 14px;
    top: 14px;
    width: 28px;
    height: 28px;
    border-radius: 10px;
    background: var(--primary);
    color: var(--white);
    display: grid;
    place-items: center;
    font-weight: 900;
    font-size: 13px;
}

.download-panel {
    display: grid;
    justify-items: start;
    gap: 14px;
    margin-top: 20px;
    background: linear-gradient(145deg, #FFFFFF, #F3F8FF);
}

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

.faq-item h2,
.faq-item h3 {
    font-size: 19px;
    margin-bottom: 8px;
}

.download-steps {
    display: grid;
    gap: 14px;
}

.site-footer {
    padding: 40px 0 22px;
    border-top: 1px solid var(--line);
    background: #FFFFFF;
}

.footer-grid {
    display: grid;
    gap: 24px;
}

.site-footer h2 {
    font-size: 16px;
    margin-bottom: 10px;
}

.site-footer p,
.footer-bottom {
    color: var(--muted);
    font-size: 14px;
}

.site-footer a:not(.footer-logo) {
    display: block;
    color: var(--muted);
    margin: 7px 0;
    font-size: 14px;
}

.site-footer a:hover {
    color: var(--primary);
}

.footer-bottom {
    margin-top: 24px;
    padding-top: 18px;
    border-top: 1px solid var(--line);
}

@media (min-width: 640px) {
    .highlight-bar,
    .category-grid,
    .risk-grid,
    .faq-grid,
    .info-grid,
    .cards-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

@media (min-width: 860px) {
    .nav-toggle {
        display: none;
    }

    .site-nav {
        position: static;
        display: flex;
        align-items: center;
        gap: 4px;
        background: transparent;
        border: 0;
        box-shadow: none;
        padding: 0;
    }

    .site-nav a {
        padding: 8px 10px;
    }

    .hero-grid,
    .inner-hero-grid,
    .big-feature-card,
    .page-layout {
        grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
    }

    .big-feature-card.reverse .feature-copy {
        order: 2;
    }

    .big-feature-card.reverse .feature-visual {
        order: 1;
    }

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

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

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

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

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

    .footer-grid {
        grid-template-columns: 1.4fr repeat(3, 1fr);
    }

    .launch-hero {
        padding-top: 78px;
    }

    .section {
        padding: 70px 0;
    }

    .inner-hero {
        padding-top: 72px;
    }

    .article-card {
        padding: 34px;
    }
}

@media (min-width: 1120px) {
    .site-nav a {
        padding: 9px 13px;
    }

    .hero-visual {
        min-height: 560px;
    }

    .big-feature-card {
        padding: 34px;
        gap: 34px;
    }

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