* {
    box-sizing: border-box;
}

:root {
    --primary: #2980FE;
    --primary-soft: #EAF3FF;
    --primary-quiet: #F5F9FF;
    --text: #1F2937;
    --muted: #5F6B7A;
    --soft: #F4F7FB;
    --line: #E5EAF1;
    --white: #FFFFFF;
    --radius: 24px;
    --radius-lg: 32px;
    --shadow: 0 18px 50px rgba(41, 128, 254, 0.08);
}

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: 1.75;
    overflow-x: hidden;
}

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

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

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line);
}

.nav-wrap {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #111827;
}

.logo img {
    width: 38px;
    height: 38px;
    object-fit: contain;
    border-radius: 12px;
}

.primary-nav {
    display: none;
    position: absolute;
    left: 16px;
    right: 16px;
    top: 76px;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: var(--white);
    box-shadow: var(--shadow);
}

.primary-nav.is-open {
    display: grid;
    gap: 8px;
}

.primary-nav a {
    color: var(--muted);
    font-size: 15px;
    padding: 10px 12px;
    border-radius: 14px;
}

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

.nav-toggle {
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--white);
    color: var(--text);
    padding: 9px 14px;
    font-weight: 700;
}

.container,
.content-container {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
}

.section {
    padding: 56px 0;
}

.eyebrow,
.category-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    width: fit-content;
    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 {
    line-height: 1.18;
    color: #111827;
    margin: 0 0 16px;
}

h1 {
    font-size: clamp(34px, 9vw, 64px);
    letter-spacing: -0.055em;
}

h2 {
    font-size: clamp(26px, 5vw, 42px);
    letter-spacing: -0.035em;
}

h3 {
    font-size: 20px;
    letter-spacing: -0.02em;
}

p {
    margin: 0 0 16px;
    color: var(--muted);
}

.lead {
    font-size: 17px;
    color: #465265;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 13px 22px;
    border-radius: 999px;
    background: var(--primary);
    color: var(--white);
    font-weight: 800;
    box-shadow: 0 14px 30px rgba(41, 128, 254, 0.24);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 38px rgba(41, 128, 254, 0.30);
}

.link-arrow {
    color: var(--primary);
    font-weight: 800;
}

.web3-hero {
    position: relative;
    overflow: hidden;
    padding: 58px 0 36px;
}

.web3-hero::before,
.web3-hero::after {
    content: "";
    position: absolute;
    border-radius: 999px;
    background: radial-gradient(circle, rgba(41,128,254,0.22), rgba(41,128,254,0));
    pointer-events: none;
}

.web3-hero::before {
    width: 360px;
    height: 360px;
    top: -150px;
    right: -120px;
}

.web3-hero::after {
    width: 260px;
    height: 260px;
    left: -80px;
    bottom: 20px;
}

.hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    gap: 32px;
    align-items: center;
}

.hero-copy {
    display: grid;
    gap: 18px;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}

.security-tags,
.hero-tags,
.inline-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.security-tags span,
.hero-tags span,
.inline-tags span {
    display: inline-flex;
    align-items: center;
    border: 1px solid var(--line);
    background: rgba(255,255,255,0.82);
    color: #405064;
    border-radius: 999px;
    padding: 8px 12px;
    font-size: 13px;
    font-weight: 700;
}

.hero-visual {
    position: relative;
    border-radius: var(--radius-lg);
    padding: 22px;
    background: linear-gradient(135deg, #FFFFFF 0%, #EEF6FF 100%);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    min-height: 320px;
}

.product-card {
    position: relative;
    display: grid;
    place-items: center;
    min-height: 280px;
    border-radius: 28px;
    background: linear-gradient(180deg, rgba(41,128,254,0.08), rgba(255,255,255,0.72));
    overflow: hidden;
}

.product-card img {
    width: min(330px, 88%);
    margin: auto;
}

.float-label {
    position: absolute;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid var(--line);
    color: #314158;
    font-size: 12px;
    font-weight: 800;
    box-shadow: 0 12px 28px rgba(20, 35, 60, 0.08);
}

.float-label.one { top: 20px; left: 18px; }
.float-label.two { top: 72px; right: 16px; }
.float-label.three { bottom: 62px; left: 18px; }
.float-label.four { bottom: 18px; right: 24px; }

.ecosystem-nav {
    padding: 26px 0 56px;
}

.section-head {
    display: grid;
    gap: 8px;
    margin-bottom: 24px;
}

.ecosystem-grid,
.category-grid {
    display: grid;
    gap: 16px;
}

.ecosystem-card,
.info-card,
.risk-card,
.faq-item,
.step-card,
.summary-card,
.side-card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: 0 10px 30px rgba(20, 35, 60, 0.04);
}

.ecosystem-card {
    min-height: 180px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.ecosystem-card:hover {
    transform: translateY(-4px);
    border-color: rgba(41,128,254,0.4);
}

.ecosystem-card strong {
    color: var(--primary);
    font-size: 13px;
}

.web3-section,
.hardware-wallet-section,
.digital-assets-section,
.swap-section,
.privacy-section,
.submit-chain-section,
.developer-center-section,
.gradient-background {
    border-radius: var(--radius-lg);
}

.feature-split {
    display: grid;
    gap: 24px;
    align-items: center;
    padding: 26px;
    border-radius: var(--radius-lg);
    background: var(--white);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.feature-split.soft {
    background: linear-gradient(135deg, #F4F8FF 0%, #FFFFFF 100%);
}

.feature-visual {
    border-radius: 28px;
    background: var(--primary-quiet);
    border: 1px solid var(--line);
    padding: 18px;
    min-height: 220px;
    display: grid;
    place-items: center;
}

.feature-visual img {
    max-height: 330px;
    object-fit: contain;
}

.feature-points {
    display: grid;
    gap: 12px;
    margin: 18px 0;
}

.feature-points li,
.check-list li {
    list-style: none;
    position: relative;
    padding-left: 28px;
    color: #465265;
    margin: 0 0 10px;
}

.feature-points li::before,
.check-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 11px;
    width: 10px;
    height: 10px;
    border-radius: 999px;
    background: var(--primary);
    box-shadow: 0 0 0 5px var(--primary-soft);
}

.privacy-panel {
    display: grid;
    gap: 18px;
    padding: 26px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, #F7FAFF, #FFFFFF);
    border: 1px solid var(--line);
}

.submit-panel {
    display: grid;
    gap: 18px;
    padding: 26px;
    border-radius: var(--radius-lg);
    background: var(--white);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.developer-panel {
    display: grid;
    gap: 20px;
    padding: 26px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, #FFFFFF 0%, #EEF6FF 100%);
    border: 1px solid var(--line);
}

.code-panel {
    border: 1px solid #DDE8F7;
    border-radius: 22px;
    background: #F8FBFF;
    padding: 18px;
    color: #38506D;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 13px;
    overflow: hidden;
}

.code-panel span {
    color: var(--primary);
}

.process-steps {
    display: grid;
    gap: 16px;
}

.step-card {
    position: relative;
    padding-left: 76px;
}

.step-number {
    position: absolute;
    left: 22px;
    top: 22px;
    width: 38px;
    height: 38px;
    border-radius: 14px;
    background: var(--primary);
    color: var(--white);
    display: grid;
    place-items: center;
    font-weight: 900;
}

.risk-grid {
    display: grid;
    gap: 16px;
}

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

.risk-card small {
    display: block;
    color: var(--primary);
    font-weight: 800;
    margin-top: 10px;
}

.faq-list {
    display: grid;
    gap: 14px;
}

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

.cta-section {
    width: min(1120px, calc(100% - 32px));
    margin: 48px auto;
    padding: 38px 22px;
    border-radius: var(--radius-lg);
    text-align: center;
    background: linear-gradient(135deg, #EAF3FF 0%, #FFFFFF 75%);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.page-hero {
    padding: 56px 0 26px;
}

.page-hero-card {
    display: grid;
    gap: 18px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, #FFFFFF 0%, #F2F7FF 100%);
    border: 1px solid var(--line);
    padding: 30px;
    box-shadow: var(--shadow);
}

.detail-layout {
    display: grid;
    gap: 22px;
    align-items: start;
}

.detail-main {
    display: grid;
    gap: 20px;
}

.safety-panel {
    padding: 22px;
    border-radius: var(--radius);
    border: 1px solid #DDE8F7;
    background: var(--primary-quiet);
}

.safety-panel h2,
.side-card h2 {
    font-size: 22px;
}

.side-card {
    position: relative;
}

.page-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px;
}

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

.install-steps li {
    counter-increment: install;
    list-style: none;
    padding: 18px;
    border-radius: 20px;
    border: 1px solid var(--line);
    background: var(--white);
}

.install-steps li::before {
    content: counter(install, decimal-leading-zero);
    display: inline-flex;
    margin-right: 10px;
    color: var(--primary);
    font-weight: 900;
}

.about-values {
    display: grid;
    gap: 16px;
}

.site-footer {
    margin-top: 64px;
    background: #F5F8FC;
    border-top: 1px solid var(--line);
    padding: 42px 0 24px;
}

.footer-grid {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
    display: grid;
    gap: 24px;
}

.footer-brand {
    font-weight: 900;
    font-size: 20px;
    margin-bottom: 10px;
}

.site-footer h2 {
    font-size: 16px;
    margin-bottom: 12px;
}

.site-footer a {
    display: block;
    color: var(--muted);
    margin-bottom: 8px;
    font-size: 14px;
}

.footer-bottom {
    width: min(1120px, calc(100% - 32px));
    margin: 28px auto 0;
    padding-top: 18px;
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: 13px;
}

@media (min-width: 640px) {
    .ecosystem-grid,
    .category-grid,
    .risk-grid,
    .about-values {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

@media (min-width: 900px) {
    .nav-toggle {
        display: none;
    }

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

    .primary-nav a {
        padding: 8px 10px;
        font-size: 14px;
    }

    .web3-hero {
        padding: 86px 0 54px;
    }

    .hero-grid {
        grid-template-columns: 1.05fr 0.95fr;
        gap: 48px;
    }

    .feature-split,
    .developer-panel,
    .submit-panel,
    .privacy-panel,
    .detail-layout {
        grid-template-columns: 1fr 1fr;
    }

    .feature-split.reverse .feature-copy {
        order: 2;
    }

    .feature-split.reverse .feature-visual {
        order: 1;
    }

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

    .ecosystem-grid .wide {
        grid-column: span 2;
    }

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

    .footer-grid {
        grid-template-columns: 1.35fr repeat(3, 1fr);
    }

    .page-hero-card {
        padding: 48px;
    }
}

@media (min-width: 1180px) {
    .section {
        padding: 76px 0;
    }

    .primary-nav a {
        padding: 8px 12px;
    }
}