:root {
    color-scheme: light;
    --bg: #f5f7fb;
    --surface: #ffffff;
    --surface-alt: #eef4ff;
    --surface-muted: #f8fafc;
    --text: #152033;
    --text-muted: #53627a;
    --line: #d7e3f7;
    --primary: #1f6fff;
    --primary-deep: #1149c6;
    --teal: #14b8c8;
    --shadow: 0 20px 45px rgba(17, 73, 198, 0.08);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "PingFang TC",
        "Hiragino Sans GB", "Hiragino Sans TC", "Microsoft YaHei", "Microsoft JhengHei",
        sans-serif;
    color: var(--text);
    background: linear-gradient(180deg, #f8fbff 0%, var(--bg) 100%);
    line-height: 1.6;
}

a {
    color: inherit;
}

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

.page {
    min-height: 100vh;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(18px);
    background: rgba(248, 251, 255, 0.9);
    border-bottom: 1px solid rgba(215, 227, 247, 0.8);
}

.topbar-inner,
.section-inner,
.footer-inner {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
}

.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 64px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    text-decoration: none;
}

.brand-mark {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--teal) 100%);
    display: grid;
    place-items: center;
    color: #fff;
    font-size: 18px;
    box-shadow: 0 10px 20px rgba(31, 111, 255, 0.22);
}

.brand-copy {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.brand-copy small {
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 600;
}

.top-links {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.pill-link,
.button,
.button-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 700;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.pill-link {
    min-height: 38px;
    padding: 0 14px;
    font-size: 14px;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(215, 227, 247, 0.9);
}

.pill-link:hover,
.button:hover,
.button-secondary:hover {
    transform: translateY(-1px);
}

.button {
    min-height: 50px;
    padding: 0 22px;
    color: #fff;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%);
    box-shadow: 0 14px 28px rgba(17, 73, 198, 0.2);
}

.button-secondary {
    min-height: 50px;
    padding: 0 22px;
    background: #fff;
    color: var(--primary-deep);
    border: 1px solid var(--line);
    box-shadow: 0 12px 24px rgba(17, 73, 198, 0.08);
}

.hero {
    padding: 40px 0 28px;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 28px;
    align-items: start;
}

.hero-copy {
    padding-top: 12px;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 14px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 700;
    color: var(--primary-deep);
    background: rgba(31, 111, 255, 0.09);
    border: 1px solid rgba(31, 111, 255, 0.12);
}

.eyebrow strong {
    color: var(--primary);
}

.hero h1 {
    margin: 18px 0 12px;
    font-size: clamp(36px, 4.9vw, 64px);
    line-height: 1.05;
}

.hero-lead {
    margin: 0;
    color: var(--text-muted);
    font-size: clamp(18px, 2.1vw, 22px);
}

.hero-summary {
    margin: 18px 0 0;
    max-width: 640px;
    color: var(--text-muted);
}

.badge-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 24px 0 0;
}

.badge {
    display: inline-flex;
    align-items: center;
    min-height: 38px;
    padding: 0 14px;
    border-radius: 999px;
    background: #fff;
    border: 1px solid var(--line);
    color: var(--text);
    font-size: 14px;
    font-weight: 700;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 28px 0 0;
}

.hero-note {
    margin: 14px 0 0;
    color: var(--text-muted);
    font-size: 13px;
}

.hero-visual {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.visual-card,
.card,
.shot-card,
.faq-item,
.qr-card,
.locale-card,
.notice-card {
    background: var(--surface);
    border: 1px solid rgba(215, 227, 247, 0.95);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.visual-card {
    overflow: hidden;
}

.visual-card figcaption {
    padding: 12px 14px 14px;
    font-size: 13px;
    color: var(--text-muted);
}

.visual-card img {
    width: 100%;
    aspect-ratio: 0.72;
    object-fit: cover;
    background: #edf3ff;
}

.section {
    padding: 26px 0 10px;
}

.section-head {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 18px;
}

.section-head h2 {
    margin: 0;
    font-size: clamp(28px, 3vw, 40px);
    line-height: 1.1;
}

.section-head p {
    margin: 0;
    color: var(--text-muted);
    max-width: 760px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.card {
    padding: 22px;
}

.card-label {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 0 10px;
    border-radius: 999px;
    background: var(--surface-alt);
    color: var(--primary-deep);
    font-size: 12px;
    font-weight: 800;
}

.card h3 {
    margin: 14px 0 10px;
    font-size: 22px;
    line-height: 1.2;
}

.card p {
    margin: 0;
    color: var(--text-muted);
}

.card ul {
    margin: 14px 0 0;
    padding-left: 18px;
    color: var(--text-muted);
}

.steps {
    display: grid;
    gap: 18px;
}

.step {
    display: grid;
    grid-template-columns: 72px minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 18px;
    align-items: start;
    padding: 22px;
    background: rgba(255, 255, 255, 0.82);
    border: 1px solid rgba(215, 227, 247, 0.9);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.step-number {
    width: 56px;
    height: 56px;
    border-radius: 999px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--teal) 100%);
    color: #fff;
    font-size: 24px;
    font-weight: 800;
}

.step-copy h3 {
    margin: 0 0 8px;
    font-size: 24px;
    line-height: 1.15;
}

.step-copy p,
.step-copy ul {
    margin: 0;
    color: var(--text-muted);
}

.step-copy ul {
    padding-left: 18px;
    margin-top: 10px;
}

.shot-card {
    overflow: hidden;
}

.shot-card img {
    width: 100%;
    background: var(--surface-muted);
}

.shot-card figcaption {
    padding: 12px 14px 14px;
}

.shot-card strong {
    display: block;
    margin-bottom: 4px;
    font-size: 15px;
}

.shot-card span {
    color: var(--text-muted);
    font-size: 13px;
}

.screenshot-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.callout-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    gap: 18px;
}

.notice-card,
.qr-card {
    padding: 22px;
}

.notice-card h3,
.qr-card h3,
.locale-card h2,
.faq-item h3 {
    margin: 0 0 10px;
}

.notice-card p,
.qr-card p,
.locale-card p,
.faq-item p {
    margin: 0;
    color: var(--text-muted);
}

.notice-card ul {
    margin: 14px 0 0;
    padding-left: 18px;
    color: var(--text-muted);
}

.qr-card {
    display: grid;
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 18px;
    align-items: center;
}

.qr-card img {
    width: 100%;
    border-radius: 8px;
    border: 1px solid var(--line);
}

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

.faq-item {
    padding: 20px 22px;
}

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

.footer {
    padding: 34px 0 48px;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    align-items: center;
    flex-wrap: wrap;
    color: var(--text-muted);
    font-size: 14px;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.locale-shell {
    display: grid;
    place-items: center;
    min-height: 100vh;
    padding: 28px 16px;
}

.locale-board {
    width: min(860px, 100%);
}

.locale-card-group {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-top: 18px;
}

.locale-card {
    padding: 24px;
}

.locale-card .actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 18px;
}

.locale-card .actions a {
    flex: 1 1 180px;
}

.support-summary {
    margin-top: 18px;
    display: grid;
    gap: 12px;
}

.support-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

@media (max-width: 980px) {
    .hero-grid,
    .card-grid,
    .callout-grid,
    .locale-card-group {
        grid-template-columns: 1fr;
    }

    .hero-copy {
        padding-top: 0;
    }

    .step {
        grid-template-columns: 56px 1fr;
    }

    .step-visual {
        grid-column: 1 / -1;
    }
}

@media (max-width: 760px) {
    .topbar-inner {
        align-items: flex-start;
        padding: 10px 0;
    }

    .hero,
    .section,
    .footer {
        padding-top: 20px;
    }

    .hero-visual,
    .screenshot-grid {
        grid-template-columns: 1fr;
    }

    .step {
        grid-template-columns: 1fr;
    }

    .step-number {
        width: 52px;
        height: 52px;
    }

    .qr-card {
        grid-template-columns: 1fr;
    }
}