* {
    box-sizing: border-box;
}

:root {
    --primary: #2980FE;
    --primary-soft: #EAF3FF;
    --primary-soft-2: #F4F8FF;
    --white: #FFFFFF;
    --bg: #F6F8FC;
    --bg-2: #EEF4FB;
    --line: #E4EAF2;
    --text: #1D2939;
    --muted: #667085;
    --deep: #344054;
    --radius-lg: 30px;
    --radius-md: 22px;
    --radius-sm: 16px;
    --shadow: 0 18px 45px rgba(29, 41, 57, .08);
    --shadow-soft: 0 10px 28px rgba(41, 128, 254, .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%, #F6F8FC 46%, #FFFFFF 100%);
    line-height: 1.75;
    overflow-x: hidden;
}

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

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

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

h1, h2, h3 {
    color: var(--text);
    line-height: 1.22;
    margin: 0 0 16px;
    letter-spacing: -.02em;
}

h1 {
    font-size: clamp(34px, 8vw, 66px);
}

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

h3 {
    font-size: 20px;
}

ul, ol {
    padding-left: 20px;
    color: var(--muted);
}

section {
    position: relative;
}

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

.narrow-container {
    width: min(920px, calc(100% - 32px));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255,255,255,.92);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line);
}

.header-inner {
    width: min(1180px, calc(100% - 28px));
    margin: 0 auto;
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    color: var(--text);
    flex: 0 0 auto;
}

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

.brand-text {
    letter-spacing: -.01em;
}

.site-nav {
    display: none;
    position: absolute;
    left: 14px;
    right: 14px;
    top: 72px;
    padding: 14px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 22px;
    box-shadow: var(--shadow);
}

.site-nav a {
    display: block;
    padding: 12px 14px;
    color: var(--deep);
    font-size: 15px;
    border-radius: 14px;
}

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

.nav-toggle {
    display: none;
}

.nav-toggle-label {
    width: 44px;
    height: 44px;
    border: 1px solid var(--line);
    border-radius: 14px;
    display: grid;
    place-content: center;
    gap: 5px;
    cursor: pointer;
}

.nav-toggle-label span {
    width: 20px;
    height: 2px;
    background: var(--deep);
    display: block;
    border-radius: 3px;
}

.nav-toggle:checked ~ .site-nav {
    display: block;
}

.gradient-bg {
    background:
        radial-gradient(circle at 8% 0%, rgba(41,128,254,.12), transparent 30%),
        radial-gradient(circle at 90% 20%, rgba(41,128,254,.10), transparent 24%),
        linear-gradient(180deg, #FFFFFF 0%, #F4F8FF 100%);
}

.section-pad {
    padding: 70px 0;
}

.section-head {
    margin-bottom: 28px;
}

.section-kicker,
.category-badge {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 7px 12px;
    border-radius: 999px;
    color: var(--primary);
    background: var(--primary-soft);
    font-weight: 700;
    font-size: 13px;
    margin-bottom: 14px;
}

.section-kicker::before,
.category-badge::before {
    content: "";
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
}

.download-btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    min-height: 48px;
    padding: 13px 24px;
    border-radius: 999px;
    background: var(--primary);
    color: #FFFFFF;
    font-weight: 800;
    box-shadow: 0 12px 26px rgba(41,128,254,.24);
    transition: transform .2s ease, box-shadow .2s ease;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 34px rgba(41,128,254,.28);
}

.text-link {
    color: var(--primary);
    font-weight: 750;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

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

.web3-dashboard-hero {
    padding: 54px 0 42px;
    overflow: hidden;
}

.hero-grid {
    display: grid;
    gap: 28px;
    align-items: center;
}

.hero-copy {
    padding: 22px 0;
}

.hero-copy p {
    font-size: 18px;
    max-width: 680px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    align-items: center;
    margin: 26px 0 22px;
}

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

.security-tags span,
.mini-tag {
    padding: 8px 12px;
    border-radius: 999px;
    background: var(--white);
    border: 1px solid var(--line);
    color: var(--deep);
    font-size: 13px;
    box-shadow: var(--shadow-soft);
}

.hero-console {
    background: linear-gradient(145deg, rgba(255,255,255,.96), rgba(244,248,255,.94));
    border: 1px solid rgba(41,128,254,.15);
    border-radius: var(--radius-lg);
    padding: 18px;
    box-shadow: var(--shadow);
    display: grid;
    gap: 18px;
}

.product-frame {
    position: relative;
    min-height: 290px;
    border-radius: 24px;
    background:
        radial-gradient(circle at 50% 20%, rgba(41,128,254,.16), transparent 42%),
        linear-gradient(180deg, #FFFFFF, #EEF4FB);
    border: 1px solid var(--line);
    display: grid;
    place-items: center;
    overflow: hidden;
}

.product-frame img {
    max-height: 380px;
    object-fit: contain;
    filter: drop-shadow(0 18px 35px rgba(29,41,57,.12));
}

.status-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.status-card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 14px;
}

.status-card span {
    color: var(--primary);
    font-size: 12px;
    font-weight: 800;
}

.status-card strong {
    display: block;
    margin-top: 4px;
    color: var(--text);
}

.service-index {
    padding: 28px 0 70px;
}

.service-index-grid,
.category-grid {
    display: grid;
    gap: 14px;
}

.service-card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 20px;
    box-shadow: var(--shadow-soft);
    min-height: 190px;
}

.service-card .mini-tag {
    display: inline-flex;
    box-shadow: none;
    color: var(--primary);
    background: var(--primary-soft);
    border-color: transparent;
}

.service-card h3 {
    margin-top: 16px;
}

.feature-panel,
.digital-assets-hub,
.web3-ecosystem-section,
.hardware-wallet-section,
.swap-service-section,
.privacy-boundary-section,
.submit-chain-section,
.developer-center-section {
    padding: 70px 0;
}

.panel-card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow);
}

.feature-grid,
.split-grid {
    display: grid;
    gap: 24px;
    align-items: center;
}

.image-panel {
    background: linear-gradient(145deg, #F8FBFF, #EDF4FF);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 24px;
    min-height: 280px;
    display: grid;
    place-items: center;
}

.image-panel img {
    max-height: 430px;
    object-fit: contain;
}

.points-grid {
    display: grid;
    gap: 12px;
    margin: 22px 0;
}

.point-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 14px;
    border: 1px solid var(--line);
    background: #FFFFFF;
    border-radius: 16px;
}

.point-item .dot {
    width: 26px;
    height: 26px;
    flex: 0 0 26px;
    border-radius: 9px;
    background: var(--primary-soft);
    color: var(--primary);
    display: inline-grid;
    place-items: center;
    font-weight: 850;
    font-size: 13px;
}

.blue-panel {
    background: linear-gradient(135deg, #F6FAFF 0%, #FFFFFF 70%);
    border: 1px solid rgba(41,128,254,.18);
}

.soft-section {
    background: linear-gradient(180deg, #F7FAFF 0%, #FFFFFF 100%);
}

.privacy-stack {
    display: grid;
    gap: 14px;
}

.boundary-card {
    padding: 18px;
    border-radius: 20px;
    background: var(--white);
    border: 1px solid var(--line);
    border-left: 4px solid var(--primary);
}

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

.submit-item {
    padding: 16px;
    border-radius: 18px;
    background: #FFFFFF;
    border: 1px solid var(--line);
}

.code-panel {
    background: #F7FAFF;
    border: 1px solid #D8E7FF;
    border-radius: 24px;
    padding: 18px;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
    color: #2D3A4A;
    overflow: hidden;
}

.code-panel .code-line {
    display: block;
    padding: 8px 0;
    border-bottom: 1px solid #E4EEFD;
    font-size: 13px;
}

.process-steps {
    padding: 70px 0;
}

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

.step-card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 22px;
    padding: 18px;
    position: relative;
}

.step-number {
    width: 34px;
    height: 34px;
    border-radius: 12px;
    background: var(--primary);
    color: #FFFFFF;
    display: inline-grid;
    place-items: center;
    font-weight: 850;
    margin-bottom: 12px;
}

.risk-grid {
    display: grid;
    gap: 14px;
}

.risk-card {
    background: var(--white);
    border: 1px solid var(--line);
    border-top: 4px solid var(--primary);
    border-radius: 22px;
    padding: 18px;
}

.risk-card strong {
    display: block;
    margin-bottom: 8px;
}

.faq-list {
    display: grid;
    gap: 12px;
}

.faq-item {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 20px;
    padding: 18px;
}

.faq-item h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.cta-section {
    padding: 70px 0 90px;
}

.cta-card {
    text-align: center;
    background:
        radial-gradient(circle at 10% 10%, rgba(41,128,254,.12), transparent 25%),
        linear-gradient(135deg, #FFFFFF, #EEF5FF);
    border: 1px solid rgba(41,128,254,.18);
    border-radius: var(--radius-lg);
    padding: 34px 22px;
    box-shadow: var(--shadow);
}

.page-hero {
    padding: 56px 0 28px;
    background:
        radial-gradient(circle at 12% 0%, rgba(41,128,254,.13), transparent 28%),
        linear-gradient(180deg, #FFFFFF 0%, #F7FAFF 100%);
}

.page-hero .summary {
    font-size: 18px;
    max-width: 780px;
}

.content-layout {
    display: grid;
    gap: 24px;
    padding: 36px 0 74px;
}

.article-card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-soft);
}

.article-card + .article-card {
    margin-top: 18px;
}

.side-panel {
    background: linear-gradient(180deg, #F8FBFF, #FFFFFF);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 20px;
    align-self: start;
}

.check-list {
    display: grid;
    gap: 12px;
    padding: 0;
    list-style: none;
}

.check-list li {
    padding: 12px 14px;
    border-radius: 14px;
    background: var(--primary-soft-2);
    border: 1px solid #E1ECFF;
    color: var(--deep);
}

.info-strip {
    padding: 16px;
    border-radius: 18px;
    background: #F4F8FF;
    border: 1px solid #DCEAFF;
    color: var(--deep);
}

.download-block {
    margin-top: 22px;
}

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

.footer-inner {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
    padding: 34px 0;
    display: grid;
    gap: 24px;
}

.footer-brand {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.footer-logo {
    width: 44px;
    height: 44px;
    border-radius: 14px;
}

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

.footer-links a {
    color: var(--muted);
    font-size: 14px;
}

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

.footer-bottom {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
    padding: 18px 0 28px;
    border-top: 1px solid var(--line);
    display: grid;
    gap: 8px;
    color: var(--muted);
    font-size: 13px;
}

@media (min-width: 640px) {
    .status-grid,
    .service-index-grid,
    .category-grid,
    .points-grid,
    .risk-grid,
    .steps-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

@media (min-width: 900px) {
    .site-nav {
        display: flex;
        position: static;
        background: transparent;
        border: 0;
        box-shadow: none;
        padding: 0;
        align-items: center;
        justify-content: flex-end;
        gap: 4px;
        flex-wrap: wrap;
    }

    .site-nav a {
        padding: 9px 10px;
        font-size: 14px;
    }

    .nav-toggle-label {
        display: none;
    }

    .hero-grid {
        grid-template-columns: 1.02fr .98fr;
    }

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

    .service-index-grid .service-card:first-child,
    .service-index-grid .service-card:nth-child(7) {
        grid-column: span 2;
    }

    .feature-grid,
    .split-grid {
        grid-template-columns: 1fr 1fr;
    }

    .reverse-desktop .image-panel {
        order: -1;
    }

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

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

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

    .content-layout {
        grid-template-columns: minmax(0, 1fr) 310px;
        align-items: start;
    }

    .footer-inner {
        grid-template-columns: 1fr 1.4fr;
        align-items: start;
    }

    .footer-bottom {
        grid-template-columns: 1fr 1fr;
    }
}

@media (min-width: 1120px) {
    .web3-dashboard-hero {
        padding: 76px 0 58px;
    }

    .hero-console {
        padding: 22px;
    }

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

    .site-nav a {
        padding: 9px 12px;
    }
}