:root {
    --primary: #2980FE;
    --primary-soft: #EAF3FF;
    --primary-tint: #F4F9FF;
    --text: #1D2736;
    --muted: #697386;
    --line: #E5EAF2;
    --soft: #F6F8FB;
    --white: #FFFFFF;
    --card: #FFFFFF;
    --deep: #2F3A4A;
    --shadow: 0 16px 42px rgba(31, 69, 122, .08);
    --radius: 24px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", Arial, sans-serif;
    color: var(--text);
    background: linear-gradient(180deg, #F7FBFF 0%, #FFFFFF 18%, #F8FAFD 100%);
    line-height: 1.75;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(100% - 32px, 1180px); margin: 0 auto; }
.site-header {
    position: sticky;
    top: 0;
    z-index: 30;
    background: rgba(255,255,255,.88);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(229,234,242,.82);
}
.header-inner {
    width: min(100% - 28px, 1180px);
    margin: 0 auto;
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}
.brand, .footer-brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -.02em; }
.logo-img, .footer-brand img { width: 38px; height: 38px; object-fit: contain; border-radius: 12px; }
.brand-text { font-size: 18px; color: var(--deep); }
.nav-toggle {
    width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 14px;
    display: inline-flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px;
    background: var(--white); cursor: pointer;
}
.nav-toggle span { width: 20px; height: 2px; background: var(--deep); border-radius: 99px; }
.site-nav {
    position: absolute; left: 16px; right: 16px; top: 78px;
    display: none; flex-direction: column; gap: 6px;
    padding: 14px; background: var(--white); border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow);
}
.site-nav.open { display: flex; }
.site-nav a { padding: 11px 12px; color: var(--muted); font-weight: 650; border-radius: 12px; }
.site-nav a.active, .site-nav a:hover { color: var(--primary); background: var(--primary-soft); }
.section { padding: 48px 0; }
.section-head { margin-bottom: 22px; max-width: 780px; }
.section-eyebrow, .badge {
    display: inline-flex; align-items: center; gap: 8px;
    color: var(--primary); background: var(--primary-soft); border: 1px solid #D7E9FF;
    border-radius: 999px; padding: 6px 12px; font-weight: 760; font-size: 13px;
}
h1, h2, h3 { margin: 0 0 12px; line-height: 1.2; color: var(--text); }
h1 { font-size: clamp(34px, 8vw, 64px); letter-spacing: -.05em; }
h2 { font-size: clamp(26px, 5vw, 42px); letter-spacing: -.035em; }
h3 { font-size: 20px; letter-spacing: -.02em; }
p { margin: 0 0 14px; color: var(--muted); }
ul, ol { margin: 0; padding-left: 20px; color: var(--muted); }
.web3-dashboard-hero { padding: 46px 0 34px; position: relative; overflow: hidden; }
.web3-dashboard-hero:before {
    content: ""; position: absolute; width: 520px; height: 520px; border-radius: 50%;
    background: radial-gradient(circle, rgba(41,128,254,.20), rgba(41,128,254,0) 68%);
    top: -180px; right: -180px; pointer-events: none;
}
.hero-grid { position: relative; display: grid; gap: 26px; align-items: center; }
.hero-copy { background: rgba(255,255,255,.64); border: 1px solid rgba(229,234,242,.88); border-radius: 30px; padding: 26px; box-shadow: var(--shadow); }
.hero-copy p { font-size: 17px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0 22px; }
.hero-tags span, .mini-tag { display: inline-flex; padding: 7px 11px; border-radius: 999px; background: #F1F6FC; color: #425169; font-size: 13px; font-weight: 700; }
.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; border: 1px solid var(--primary);
    box-shadow: 0 12px 28px rgba(41,128,254,.22); transition: transform .18s ease, box-shadow .18s ease;
}
.download-btn:hover { transform: translateY(-1px); box-shadow: 0 16px 34px rgba(41,128,254,.28); }
.hero-console { display: grid; gap: 16px; }
.device-panel { position: relative; background: linear-gradient(145deg, #FFFFFF, #EFF6FF); border: 1px solid #DDEBFB; border-radius: 30px; padding: 18px; box-shadow: var(--shadow); overflow: hidden; }
.device-panel img { margin: 0 auto; max-height: 430px; object-fit: contain; }
.status-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; }
.status-card, .service-card, .content-card, .risk-card, .faq-item, .side-card, .step-card {
    background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 10px 28px rgba(31,69,122,.05);
}
.status-card { padding: 14px; }
.status-card strong { display: block; color: var(--text); font-size: 15px; }
.status-card span { color: var(--muted); font-size: 13px; }
.service-index { display: grid; grid-template-columns: 1fr; gap: 14px; }
.service-card { padding: 18px; position: relative; overflow: hidden; }
.service-card:before { content: ""; width: 48px; height: 4px; border-radius: 99px; background: var(--primary); position: absolute; top: 0; left: 18px; }
.service-card a, .text-link { display: inline-flex; margin-top: 8px; color: var(--primary); font-weight: 800; }
.module-card { border-radius: 30px; border: 1px solid var(--line); box-shadow: var(--shadow); overflow: hidden; background: var(--white); }
.module-grid, .digital-assets-hub, .web3-ecosystem-section, .hardware-wallet-section, .swap-service-section, .developer-center-section, .submit-chain-section { display: grid; gap: 22px; align-items: center; }
.module-copy { padding: 26px; }
.module-media { background: linear-gradient(145deg, #F5F9FF, #FFFFFF); padding: 26px; min-height: 260px; display: flex; align-items: center; justify-content: center; }
.module-media img { max-height: 360px; object-fit: contain; }
.check-list { display: grid; gap: 10px; margin: 18px 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding-left: 28px; color: var(--deep); }
.check-list li:before { content: ""; position: absolute; left: 0; top: .58em; width: 10px; height: 10px; border-radius: 50%; background: var(--primary); box-shadow: 0 0 0 5px var(--primary-soft); }
.hardware-wallet-section, .privacy-boundary-section { background: linear-gradient(135deg, #F5F8FC, #ECF5FF); border: 1px solid #DDEBFB; border-radius: 30px; padding: 22px; }
.swap-service-section { background: var(--white); border: 1px solid var(--line); border-radius: 30px; padding: 22px; box-shadow: var(--shadow); }
.privacy-boundary-section { display: grid; gap: 18px; }
.boundary-grid, .category-grid, .risk-grid, .related-grid { display: grid; gap: 14px; }
.boundary-card { background: rgba(255,255,255,.76); border: 1px solid #DDEBFB; border-radius: 22px; padding: 18px; }
.submit-chain-section { background: linear-gradient(135deg, #FFFFFF, #F3F8FF); border: 1px solid var(--line); border-radius: 30px; padding: 22px; }
.eco-list { display: grid; gap: 12px; }
.eco-row { display: flex; gap: 12px; padding: 14px; background: var(--white); border: 1px solid var(--line); border-radius: 18px; }
.eco-number { width: 34px; height: 34px; flex: 0 0 auto; border-radius: 12px; display: grid; place-items: center; background: var(--primary); color: var(--white); font-weight: 800; }
.developer-center-section { background: #F8FAFD; border: 1px solid var(--line); border-radius: 30px; padding: 22px; }
.code-panel { background: #FFFFFF; border: 1px solid #DDEBFB; border-radius: 24px; padding: 20px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; color: #334155; overflow: hidden; }
.code-panel span { display: block; color: var(--primary); margin-bottom: 8px; }
.code-line { padding: 8px 0; border-bottom: 1px solid #EDF2F7; font-size: 13px; }
.process-steps { display: grid; gap: 14px; }
.step-card { padding: 18px; }
.step-number { width: 38px; height: 38px; border-radius: 14px; background: var(--primary-soft); color: var(--primary); display: grid; place-items: center; font-weight: 900; margin-bottom: 12px; }
.risk-grid { grid-template-columns: 1fr; }
.risk-card { padding: 18px; border-left: 4px solid var(--primary); }
.risk-card strong { display: block; margin-bottom: 8px; }
.faq-list { display: grid; gap: 12px; }
.faq-item { padding: 18px; }
.faq-item h3 { font-size: 18px; }
.cta-section { padding: 52px 0; }
.cta-box { text-align: center; border-radius: 32px; padding: 34px 20px; background: linear-gradient(135deg, #EEF6FF, #FFFFFF); border: 1px solid #DDEBFB; box-shadow: var(--shadow); }
.page-hero { padding: 42px 0 22px; }
.page-hero-card { background: linear-gradient(135deg, rgba(255,255,255,.96), #F3F8FF); border: 1px solid #DDEBFB; border-radius: 30px; padding: 26px; box-shadow: var(--shadow); }
.page-layout { display: grid; gap: 22px; padding: 28px 0 54px; }
.content-stack { display: grid; gap: 18px; }
.content-card { padding: 22px; }
.safety-panel { padding: 20px; border-radius: 24px; background: #F6FAFF; border: 1px solid #DDEBFB; }
.side-card { padding: 18px; position: sticky; top: 96px; }
.related-grid { grid-template-columns: 1fr; }
.related-link { display: block; padding: 14px; border-radius: 18px; border: 1px solid var(--line); background: var(--white); color: var(--primary); font-weight: 800; }
.download-strip { margin-top: 18px; padding: 20px; border-radius: 24px; background: linear-gradient(135deg, #F6FAFF, #FFFFFF); border: 1px solid #DDEBFB; text-align: center; }
.site-footer { background: #F5F7FB; border-top: 1px solid var(--line); padding-top: 36px; }
.footer-grid { display: grid; gap: 24px; }
.footer-brand img { width: 34px; height: 34px; }
.site-footer h3 { font-size: 16px; margin-bottom: 10px; }
.site-footer a:not(.footer-brand) { display: block; color: var(--muted); padding: 4px 0; }
.footer-bottom { text-align: center; color: var(--muted); border-top: 1px solid var(--line); padding: 18px; margin-top: 26px; font-size: 14px; }
.table-like { display: grid; gap: 10px; }
.table-row { display: grid; gap: 6px; padding: 14px; background: #FBFCFE; border: 1px solid var(--line); border-radius: 16px; }
.table-row strong { color: var(--text); }
.notice { border-left: 4px solid var(--primary); background: #F6FAFF; border-radius: 18px; padding: 16px; }
@media (min-width: 640px) {
    .service-index, .boundary-grid, .related-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .process-steps { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .risk-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (min-width: 900px) {
    .nav-toggle { display: none; }
    .site-nav { position: static; display: flex; flex-direction: row; align-items: center; box-shadow: none; border: 0; background: transparent; padding: 0; gap: 2px; }
    .site-nav a { font-size: 14px; padding: 8px 10px; }
    .web3-dashboard-hero { padding: 76px 0 46px; }
    .hero-grid { grid-template-columns: 1fr 1fr; gap: 34px; }
    .hero-copy { padding: 38px; }
    .service-index { grid-template-columns: repeat(4, minmax(0,1fr)); }
    .service-card:nth-child(1), .service-card:nth-child(7) { grid-column: span 2; }
    .digital-assets-hub, .web3-ecosystem-section, .hardware-wallet-section, .swap-service-section, .developer-center-section, .submit-chain-section, .module-grid { grid-template-columns: 1.08fr .92fr; }
    .web3-ecosystem-section .module-media, .hardware-wallet-section .module-media { order: -1; }
    .privacy-boundary-section { grid-template-columns: 1fr 1fr; padding: 34px; }
    .boundary-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .process-steps { grid-template-columns: repeat(3, minmax(0,1fr)); }
    .risk-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
    .page-layout { grid-template-columns: minmax(0, 1fr) 320px; align-items: start; }
    .footer-grid { grid-template-columns: 1.4fr .8fr .8fr; }
    .category-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
}
@media (min-width: 1120px) {
    .site-nav a { padding: 9px 12px; }
    .risk-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
}