:root {
    --primary: #2980FE;
    --primary-soft: #EAF3FF;
    --primary-soft-2: #F4F8FF;
    --white: #FFFFFF;
    --gray-50: #F7F9FC;
    --gray-100: #EEF2F7;
    --gray-200: #E2E8F0;
    --gray-500: #667085;
    --gray-700: #344054;
    --gray-900: #101828;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --shadow: 0 18px 55px rgba(41, 128, 254, .10);
    --shadow-soft: 0 14px 36px rgba(16, 24, 40, .07);
    --container: 1180px;
}
* { 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(--gray-900);
    background: linear-gradient(180deg, #FFFFFF 0%, #F6F9FF 45%, #FFFFFF 100%);
    line-height: 1.72;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
main { min-height: 65vh; }
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255,255,255,.88);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(226,232,240,.82);
}
.nav-shell {
    width: min(100% - 32px, var(--container));
    margin: 0 auto;
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}
.brand, .footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    letter-spacing: .02em;
}
.brand-logo, .footer-brand img {
    width: 36px;
    height: 36px;
    border-radius: 12px;
    object-fit: contain;
    background: var(--primary-soft);
}
.site-nav {
    display: none;
    width: 100%;
    padding: 10px 0 18px;
}
.site-nav a {
    display: block;
    padding: 11px 12px;
    color: var(--gray-700);
    border-radius: 14px;
    font-size: 15px;
}
.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;
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    border: 1px solid var(--gray-200);
    border-radius: 15px;
    background: #fff;
}
.nav-toggle-label span {
    width: 18px;
    height: 2px;
    background: var(--gray-900);
    border-radius: 999px;
}
.nav-toggle:checked ~ .site-nav { display: block; position: absolute; left: 16px; right: 16px; top: 72px; width: auto; background: #fff; border: 1px solid var(--gray-200); border-radius: 22px; box-shadow: var(--shadow-soft); padding: 10px; }
.container, .content-container {
    width: min(100% - 32px, var(--container));
    margin: 0 auto;
}
.section { padding: 56px 0; }
.section-tight { padding: 36px 0; }
.section-head {
    margin-bottom: 24px;
    max-width: 760px;
}
.section-head.center { text-align: center; margin-left: auto; margin-right: auto; }
.kicker, .category-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    background: var(--primary-soft);
    border: 1px solid rgba(41,128,254,.14);
    border-radius: 999px;
    padding: 7px 13px;
    font-weight: 700;
    font-size: 13px;
}
h1, h2, h3 { line-height: 1.18; margin: 0 0 14px; color: var(--gray-900); }
h1 { font-size: clamp(34px, 9vw, 70px); letter-spacing: -.05em; }
h2 { font-size: clamp(27px, 5vw, 46px); letter-spacing: -.035em; }
h3 { font-size: 21px; letter-spacing: -.015em; }
p { margin: 0 0 16px; color: var(--gray-500); }
.lead { font-size: clamp(17px, 2.3vw, 21px); color: var(--gray-700); }
.muted { color: var(--gray-500); font-size: 14px; }
.gradient-bg {
    background:
        radial-gradient(circle at 18% 18%, rgba(41,128,254,.13), transparent 26%),
        radial-gradient(circle at 86% 10%, rgba(41,128,254,.12), transparent 22%),
        linear-gradient(180deg, #FFFFFF 0%, #F2F7FF 100%);
}
.launch-hero {
    position: relative;
    overflow: hidden;
    padding: 48px 0 42px;
}
.launch-hero::after {
    content: "";
    position: absolute;
    width: 420px;
    height: 420px;
    right: -160px;
    top: 40px;
    background: rgba(41,128,254,.10);
    border-radius: 50%;
    filter: blur(8px);
}
.hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    gap: 30px;
    align-items: center;
}
.hero-copy { max-width: 720px; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin: 26px 0; }
.download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 0 24px;
    border-radius: 999px;
    background: var(--primary);
    color: var(--white);
    font-weight: 800;
    box-shadow: 0 16px 30px rgba(41,128,254,.26);
    border: 1px solid rgba(41,128,254,.2);
    transition: transform .2s ease, box-shadow .2s ease;
    cursor: pointer;
    white-space: nowrap;
}
.download-btn:hover { transform: translateY(-2px); box-shadow: 0 20px 38px rgba(41,128,254,.30); }
.security-tags, .floating-tags, .pill-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.security-tags span, .floating-tags span, .pill, .mini-tag {
    display: inline-flex;
    align-items: center;
    padding: 8px 12px;
    border-radius: 999px;
    background: #fff;
    border: 1px solid var(--gray-200);
    color: var(--gray-700);
    font-size: 13px;
    font-weight: 700;
    box-shadow: 0 8px 22px rgba(16,24,40,.04);
}
.hero-visual, .app-showcase {
    position: relative;
    min-height: 360px;
    display: grid;
    place-items: center;
}
.phone-stage {
    position: relative;
    width: min(88vw, 430px);
    padding: 22px;
    border-radius: 42px;
    background: linear-gradient(150deg, rgba(41,128,254,.12), rgba(255,255,255,.92));
    box-shadow: var(--shadow);
    border: 1px solid rgba(41,128,254,.12);
}
.phone-stage img {
    width: 100%;
    max-height: 540px;
    object-fit: contain;
    border-radius: 28px;
}
.float-card {
    position: absolute;
    background: rgba(255,255,255,.94);
    border: 1px solid var(--gray-200);
    border-radius: 18px;
    padding: 10px 13px;
    box-shadow: var(--shadow-soft);
    color: var(--gray-700);
    font-size: 13px;
    font-weight: 800;
}
.float-card.one { top: 18px; left: 6px; }
.float-card.two { right: 0; top: 34%; }
.float-card.three { left: 4px; bottom: 24%; }
.float-card.four { right: 18px; bottom: 14px; }
.highlight-bar {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}
.highlight-card, .category-card, .risk-card, .faq-item, .small-card, .note-box, .step-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: 0 10px 30px rgba(16,24,40,.04);
}
.highlight-card {
    position: relative;
    min-height: 158px;
}
.highlight-card .mini-tag { margin-bottom: 14px; color: var(--primary); background: var(--primary-soft); border-color: rgba(41,128,254,.16); }
.text-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-weight: 800;
    margin-top: 8px;
}
.text-link::after { content: "→"; }
.launch-card, .big-feature-card {
    border-radius: var(--radius-xl);
    padding: 24px;
    border: 1px solid var(--gray-200);
    background: rgba(255,255,255,.92);
    box-shadow: var(--shadow-soft);
    overflow: hidden;
}
.big-feature-card {
    display: grid;
    gap: 24px;
    align-items: center;
    margin-bottom: 24px;
}
.big-feature-card.blue-soft { background: linear-gradient(135deg, #F7FBFF, #FFFFFF); }
.big-feature-card.gray-soft { background: linear-gradient(135deg, #F8FAFC, #FFFFFF); }
.feature-copy ul, .check-list, .article-list, .plain-list {
    margin: 18px 0 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 10px;
}
.feature-copy li, .check-list li, .article-list li, .plain-list li {
    color: var(--gray-700);
    padding-left: 28px;
    position: relative;
}
.feature-copy li::before, .check-list li::before, .article-list li::before, .plain-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: .68em;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 0 5px rgba(41,128,254,.12);
}
.feature-media {
    border-radius: 28px;
    background: var(--primary-soft-2);
    border: 1px solid rgba(41,128,254,.10);
    padding: 18px;
    min-height: 260px;
    display: grid;
    place-items: center;
}
.feature-media img { max-height: 420px; object-fit: contain; }
.wallet-feature { background: linear-gradient(140deg, #FFFFFF 0%, #F2F7FF 100%); }
.cold-wallet-feature { background: linear-gradient(140deg, #F7F9FC 0%, #FFFFFF 100%); }
.swap-feature { background: linear-gradient(140deg, #FFFFFF 0%, #F4F8FF 100%); }
.dapp-feature { background: linear-gradient(140deg, #F8FBFF 0%, #FFFFFF 100%); }
.process-steps {
    display: grid;
    gap: 14px;
}
.step-card { position: relative; }
.step-number {
    width: 38px;
    height: 38px;
    display: inline-grid;
    place-items: center;
    border-radius: 14px;
    background: var(--primary);
    color: #fff;
    font-weight: 900;
    margin-bottom: 14px;
}
.risk-grid, .category-grid, .app-category-center, .card-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}
.risk-card {
    border-left: 4px solid var(--primary);
}
.risk-card strong { display: block; margin-bottom: 8px; color: var(--gray-900); }
.safety-panel {
    border-radius: var(--radius-xl);
    background: linear-gradient(135deg, #F4F8FF, #FFFFFF);
    border: 1px solid rgba(41,128,254,.14);
    padding: 24px;
    box-shadow: var(--shadow-soft);
}
.app-category-center .category-card {
    min-height: 168px;
}
.category-card .icon-dot, .highlight-card .icon-dot {
    width: 34px;
    height: 34px;
    border-radius: 12px;
    background: var(--primary-soft);
    display: inline-grid;
    place-items: center;
    color: var(--primary);
    font-weight: 900;
    margin-bottom: 12px;
}
.faq-list { display: grid; gap: 14px; }
.faq-item h3 { font-size: 18px; margin-bottom: 8px; }
.cta-section {
    padding: 56px 0;
}
.cta-card {
    border-radius: var(--radius-xl);
    padding: 34px 22px;
    background:
        radial-gradient(circle at 18% 15%, rgba(41,128,254,.16), transparent 28%),
        linear-gradient(135deg, #FFFFFF, #EFF6FF);
    border: 1px solid rgba(41,128,254,.14);
    text-align: center;
    box-shadow: var(--shadow);
}
.page-hero {
    padding: 54px 0 34px;
    background: linear-gradient(180deg, #FFFFFF 0%, #F4F8FF 100%);
    border-bottom: 1px solid var(--gray-200);
}
.page-hero .content-container { max-width: 980px; }
.article-layout {
    display: grid;
    gap: 22px;
    align-items: start;
}
.article-main, .article-side {
    display: grid;
    gap: 18px;
}
.article-block {
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 22px;
    box-shadow: 0 10px 30px rgba(16,24,40,.04);
}
.article-block h2 { font-size: clamp(24px, 4vw, 34px); }
.note-box {
    background: var(--primary-soft-2);
    border-color: rgba(41,128,254,.18);
}
.download-panel {
    text-align: center;
    background: #fff;
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    padding: 30px 22px;
    box-shadow: var(--shadow-soft);
}
.download-steps {
    counter-reset: step;
    list-style: none;
    padding: 0;
    margin: 22px 0 0;
    display: grid;
    gap: 12px;
}
.download-steps li {
    counter-increment: step;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: 18px;
    padding: 15px 16px 15px 58px;
    position: relative;
    color: var(--gray-700);
}
.download-steps li::before {
    content: counter(step);
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    display: grid;
    place-items: center;
    border-radius: 10px;
    background: var(--primary);
    color: #fff;
    font-weight: 900;
}
.site-footer {
    background: #fff;
    border-top: 1px solid var(--gray-200);
    margin-top: 40px;
}
.footer-inner {
    width: min(100% - 32px, var(--container));
    margin: 0 auto;
    padding: 34px 0;
    display: grid;
    gap: 24px;
}
.footer-inner p { max-width: 560px; font-size: 14px; margin-top: 14px; }
.footer-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}
.footer-links a {
    color: var(--gray-700);
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: 14px;
    padding: 10px 12px;
    font-size: 14px;
}
.footer-bottom {
    width: min(100% - 32px, var(--container));
    margin: 0 auto;
    padding: 18px 0 28px;
    border-top: 1px solid var(--gray-200);
    color: var(--gray-500);
    font-size: 13px;
}
@media (min-width: 620px) {
    .highlight-bar, .risk-grid, .category-grid, .app-category-center, .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .process-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .footer-links { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (min-width: 900px) {
    .nav-toggle-label { display: none; }
    .nav-shell { min-height: 82px; }
    .site-nav { display: flex; width: auto; padding: 0; align-items: center; gap: 2px; }
    .site-nav a { font-size: 14px; padding: 9px 10px; }
    .launch-hero { padding: 78px 0 64px; }
    .hero-grid { grid-template-columns: 1.04fr .96fr; gap: 58px; }
    .highlight-bar { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .big-feature-card { grid-template-columns: 1fr 1fr; padding: 34px; gap: 38px; }
    .big-feature-card.reverse .feature-media { order: -1; }
    .process-steps { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .risk-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .app-category-center { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .article-layout { grid-template-columns: minmax(0, 1fr) 330px; gap: 28px; }
    .article-block { padding: 28px; }
    .footer-inner { grid-template-columns: 1fr 1fr; align-items: start; }
}
@media (min-width: 1120px) {
    .site-nav a { padding: 10px 13px; }
    .section { padding: 76px 0; }
    .cta-card { padding: 48px; }
}