/* Mobile-first responsive design for TokenPocket Wallet */
:root {
    --primary: #2980FE;
    --primary-soft: #EAF3FF;
    --primary-faint: #F4F8FF;
    --text: #1F2937;
    --muted: #667085;
    --light: #F6F8FB;
    --line: #E5EAF2;
    --white: #FFFFFF;
    --shadow: 0 18px 45px rgba(41, 128, 254, 0.10);
    --shadow-soft: 0 12px 30px rgba(15, 23, 42, 0.06);
    --radius-lg: 28px;
    --radius-md: 20px;
    --radius-sm: 14px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    color: var(--text);
    background: linear-gradient(180deg, #FFFFFF 0%, #F7FAFF 52%, #FFFFFF 100%);
    line-height: 1.72;
    overflow-x: hidden;
}

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

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

p {
    margin: 0 0 14px;
}

ul, ol {
    padding-left: 20px;
}

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

.nav-shell {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
    min-height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

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

.logo,
.footer-logo {
    width: 34px;
    height: 34px;
    object-fit: contain;
}

.brand-text {
    color: #111827;
    font-size: 17px;
}

.nav-toggle {
    border: 1px solid var(--line);
    background: var(--white);
    color: var(--text);
    padding: 9px 13px;
    border-radius: 999px;
    font-weight: 700;
}

.site-nav {
    display: none;
    position: absolute;
    top: 68px;
    left: 16px;
    right: 16px;
    padding: 12px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 22px;
    box-shadow: var(--shadow-soft);
}

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

.site-nav a {
    padding: 10px 12px;
    border-radius: 14px;
    color: #344054;
    font-size: 14px;
    font-weight: 650;
}

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

main {
    display: block;
}

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

.narrow-container {
    width: min(880px, calc(100% - 32px));
    margin: 0 auto;
}

.section {
    padding: 64px 0;
}

.section-heading {
    margin: 0 0 24px;
}

.section-eyebrow,
.category-badge {
    display: inline-flex;
    align-items: center;
    width: max-content;
    padding: 6px 12px;
    border-radius: 999px;
    background: var(--primary-soft);
    color: var(--primary);
    font-size: 13px;
    font-weight: 800;
    margin-bottom: 12px;
}

.section-title,
.page-title {
    margin: 0 0 12px;
    font-size: clamp(28px, 7vw, 52px);
    line-height: 1.12;
    letter-spacing: -0.045em;
}

.section-desc,
.page-summary {
    color: var(--muted);
    font-size: 16px;
    max-width: 760px;
}

.app-hero {
    position: relative;
    overflow: hidden;
    padding: 70px 0 44px;
}

.app-hero::before {
    content: "";
    position: absolute;
    width: 520px;
    height: 520px;
    border-radius: 999px;
    right: -220px;
    top: -220px;
    background: radial-gradient(circle, rgba(41, 128, 254, 0.18), rgba(41, 128, 254, 0));
    pointer-events: none;
}

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

.hero-copy h1 {
    margin: 0 0 16px;
    font-size: clamp(34px, 9vw, 68px);
    line-height: 1.04;
    letter-spacing: -0.06em;
}

.hero-copy p {
    color: var(--muted);
    font-size: 17px;
}

.hero-tags,
.mini-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.hero-tags span,
.mini-tags span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border-radius: 999px;
    background: var(--white);
    border: 1px solid var(--line);
    color: #475467;
    font-size: 13px;
    font-weight: 700;
}

.app-visual {
    position: relative;
    min-height: 360px;
    display: grid;
    place-items: center;
}

.phone-frame {
    width: min(280px, 78vw);
    padding: 16px;
    border-radius: 34px;
    background: linear-gradient(180deg, #FFFFFF, #EEF5FF);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.floating-card {
    position: relative;
    margin: 10px 0;
    padding: 14px 16px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-soft);
}

.float-stack {
    margin-top: 18px;
    width: 100%;
    display: grid;
    gap: 10px;
}

.floating-card strong {
    display: block;
    font-size: 14px;
}

.floating-card span {
    display: block;
    color: var(--muted);
    font-size: 12px;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 24px;
    border-radius: 999px;
    background: var(--primary);
    color: #FFFFFF;
    font-weight: 800;
    box-shadow: 0 12px 28px rgba(41, 128, 254, 0.28);
    transition: transform .2s ease, box-shadow .2s ease;
}

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

.ability-bar {
    display: grid;
    gap: 12px;
    padding: 14px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
}

.ability-item {
    padding: 16px;
    border-radius: 18px;
    background: var(--primary-faint);
    border: 1px solid #EAF1FF;
}

.ability-item strong {
    display: block;
    color: #101828;
    margin-bottom: 4px;
}

.ability-item p {
    color: var(--muted);
    font-size: 14px;
    margin: 0;
}

.feature-showcase {
    display: grid;
    gap: 18px;
}

.feature-card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 22px;
    box-shadow: var(--shadow-soft);
    overflow: hidden;
}

.feature-card h3 {
    margin: 0 0 8px;
    font-size: 22px;
}

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

.feature-card img {
    margin-top: 18px;
    border-radius: 22px;
    background: var(--light);
    border: 1px solid var(--line);
}

.feature-link,
.text-link {
    display: inline-flex;
    color: var(--primary);
    font-weight: 800;
    margin-top: 6px;
}

.product-section,
.wallet-panel,
.cold-wallet-panel,
.swap-panel,
.dapp-panel {
    display: grid;
    gap: 24px;
    align-items: center;
    padding: 28px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--line);
    background: var(--white);
    box-shadow: var(--shadow-soft);
}

.cold-wallet-panel {
    background: linear-gradient(135deg, #F7FAFF 0%, #FFFFFF 100%);
}

.swap-panel {
    background: #FFFFFF;
}

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

.panel-visual img {
    border-radius: 26px;
    border: 1px solid var(--line);
    background: var(--light);
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
}

.check-list,
.clean-list {
    display: grid;
    gap: 10px;
    padding: 0;
    margin: 16px 0 0;
    list-style: none;
}

.check-list li,
.clean-list li {
    position: relative;
    padding: 12px 12px 12px 38px;
    border-radius: 16px;
    background: var(--primary-faint);
    border: 1px solid #EAF1FF;
    color: #475467;
}

.check-list li::before,
.clean-list li::before {
    content: "";
    position: absolute;
    left: 14px;
    top: 18px;
    width: 9px;
    height: 9px;
    border-radius: 999px;
    background: var(--primary);
}

.ecosystem-grid,
.category-grid,
.risk-grid,
.faq-grid,
.help-grid {
    display: grid;
    gap: 14px;
}

.eco-card,
.category-card,
.risk-card,
.faq-item,
.info-card,
.step-card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 20px;
    box-shadow: var(--shadow-soft);
}

.eco-card h3,
.category-card h3,
.risk-card h3,
.faq-item h3,
.info-card h3,
.step-card h3 {
    margin: 0 0 8px;
}

.eco-card p,
.category-card p,
.risk-card p,
.faq-item p,
.info-card p,
.step-card p {
    color: var(--muted);
    margin-bottom: 0;
}

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

.step-card {
    position: relative;
    padding-top: 54px;
}

.step-card::before {
    counter-increment: steps;
    content: counter(steps);
    position: absolute;
    top: 18px;
    left: 20px;
    width: 28px;
    height: 28px;
    display: grid;
    place-items: center;
    border-radius: 10px;
    background: var(--primary);
    color: var(--white);
    font-weight: 800;
}

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

.cta-section {
    text-align: center;
    padding: 42px 20px;
    border-radius: 32px;
    background: linear-gradient(135deg, #EFF6FF 0%, #FFFFFF 100%);
    border: 1px solid #DDEBFF;
    box-shadow: var(--shadow-soft);
}

.cta-section h2 {
    margin: 0 0 10px;
    font-size: clamp(26px, 6vw, 42px);
    letter-spacing: -0.04em;
}

.cta-section p {
    max-width: 700px;
    margin: 0 auto 20px;
    color: var(--muted);
}

.page-hero {
    padding: 56px 0 24px;
}

.page-layout {
    display: grid;
    gap: 24px;
    padding: 20px 0 68px;
}

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

.article-panel h2 {
    margin: 26px 0 10px;
    font-size: 24px;
}

.article-panel h2:first-child {
    margin-top: 0;
}

.side-panel {
    display: grid;
    gap: 14px;
}

.notice-box,
.tip-box {
    padding: 18px;
    border-radius: var(--radius-md);
    border: 1px solid #DDEBFF;
    background: var(--primary-faint);
}

.notice-box strong,
.tip-box strong {
    display: block;
    margin-bottom: 8px;
}

.download-area {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--line);
}

.download-steps {
    display: grid;
    gap: 12px;
    margin-top: 18px;
}

.download-step {
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: var(--white);
}

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

.faq-detail {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 20px;
    box-shadow: var(--shadow-soft);
}

.faq-detail h2 {
    margin: 0 0 8px;
    font-size: 20px;
}

.gradient-background {
    background: linear-gradient(135deg, #F4F8FF 0%, #FFFFFF 55%, #F7FAFF 100%);
}

.site-footer {
    border-top: 1px solid var(--line);
    background: #FFFFFF;
    padding: 36px 0;
}

.footer-inner {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
    display: grid;
    gap: 18px;
}

.footer-brand {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.footer-brand p,
.footer-note {
    color: var(--muted);
    font-size: 14px;
    margin: 4px 0 0;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.footer-links a {
    color: #475467;
    background: var(--light);
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 8px 12px;
    font-size: 13px;
    font-weight: 700;
}

@media (min-width: 640px) {
    .ability-bar {
        grid-template-columns: repeat(2, 1fr);
    }

    .feature-showcase,
    .category-grid,
    .ecosystem-grid,
    .risk-grid,
    .faq-grid,
    .help-grid,
    .process-steps {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .site-nav {
        position: static;
        display: flex;
        align-items: center;
        justify-content: flex-end;
        gap: 2px;
        border: 0;
        padding: 0;
        box-shadow: none;
        background: transparent;
    }

    .site-nav.is-open {
        display: flex;
    }

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

    .app-visual {
        min-height: 540px;
    }

    .float-stack {
        position: absolute;
        inset: 0;
        pointer-events: none;
    }

    .floating-card {
        position: absolute;
        width: 190px;
    }

    .floating-card.card-assets {
        left: 0;
        top: 74px;
    }

    .floating-card.card-cold {
        right: 6px;
        top: 34px;
    }

    .floating-card.card-swap {
        left: 26px;
        bottom: 82px;
    }

    .floating-card.card-dapp {
        right: 0;
        bottom: 122px;
    }

    .ability-bar {
        grid-template-columns: repeat(5, 1fr);
    }

    .feature-showcase {
        grid-template-columns: repeat(2, 1fr);
    }

    .wallet-panel,
    .swap-panel,
    .dapp-panel,
    .product-section {
        grid-template-columns: 1fr 1fr;
        padding: 42px;
    }

    .cold-wallet-panel {
        grid-template-columns: 1fr 1fr;
        padding: 42px;
    }

    .cold-wallet-panel .panel-visual {
        order: -1;
    }

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

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

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

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

    .article-panel {
        padding: 34px;
    }

    .side-panel {
        position: sticky;
        top: 96px;
    }

    .section {
        padding: 84px 0;
    }
}

@media (min-width: 1120px) {
    .phone-frame {
        width: 318px;
    }

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