:root {
    --ink: #18142b;
    --ink-2: #4b4660;
    --muted: #77718a;
    --line: #e8e3f1;
    --canvas: #fffaf4;
    --sun: #ffcf45;
    --peach: #ff8361;
    --berry: #ff5d8f;
    --violet: #7c4dff;
    --blue: #2f7cf6;
    --green: #49c37c;
    --teal: #00a89d;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    color: var(--ink);
    background: var(--canvas);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 15px;
    line-height: 1.5;
    letter-spacing: 0;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.app {
    width: min(100%, 520px);
    min-height: 100vh;
    margin: 0 auto;
    background: var(--canvas);
    box-shadow: 0 0 40px rgba(24,20,43,.12);
}

.app-header {
    position: sticky;
    top: 0;
    z-index: 30;
    min-height: 58px;
    padding: 0 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255,255,255,.95);
    border-bottom: 3px solid var(--ink);
    backdrop-filter: blur(10px);
}

.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
    width: 36px;
    height: 36px;
    border-radius: 11px;
    display: grid;
    place-items: center;
    background: var(--berry);
    color: #fff;
    font-size: 20px;
    font-weight: 900;
    transform: rotate(-5deg);
}
.brand strong, .brand small { display: block; line-height: 1.1; }
.brand strong { font-size: 15px; }
.brand small { color: var(--muted); font-size: 10px; }
.desktop-link { color: var(--violet); font-size: 12px; font-weight: 800; }

.hero { padding: 34px 18px 24px; }
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--violet);
    font-size: 11px;
    font-weight: 900;
}
.eyebrow::before { content: ""; width: 22px; height: 8px; border-radius: 99px; background: var(--sun); }

.hero h1 {
    margin: 14px 0 10px;
    font-size: 34px;
    line-height: 1.05;
}
.hero p { margin: 0 0 20px; color: var(--ink-2); }

.primary-btn {
    min-height: 46px;
    padding: 0 18px;
    border: 3px solid var(--ink);
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--peach);
    color: #fff;
    font-weight: 900;
    box-shadow: 5px 5px 0 var(--ink);
}

.section { padding: 30px 16px; }
.section-alt { background: #eef8ff; }
.section-head { text-align: center; margin-bottom: 20px; }
.section-head h2 { margin: 0; font-size: 25px; }

.cards { display: grid; gap: 12px; }
.card {
    position: relative;
    padding: 18px;
    overflow: hidden;
    border: 3px solid var(--ink);
    border-radius: 16px;
}
.card h3 { margin: 12px 0 6px; font-size: 19px; }
.card p { margin: 0; color: var(--ink-2); }
.card span { font-size: 12px; font-weight: 900; }
.card.c1 { background: var(--sun); }
.card.c2 { background: #d7f6ef; }
.card.c3 { background: #ffe5ed; }
.card.c4 { background: #e2daff; }
.card.c5 { background: #d9eaff; }
.card.c6 { background: #d9f5d5; }

.steps { display: grid; gap: 10px; }
.steps div {
    padding: 14px;
    border: 3px solid var(--ink);
    border-radius: 14px;
    background: #fff;
}
.steps b {
    display: inline-grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border: 3px solid var(--ink);
    border-radius: 9px;
    background: var(--sun);
    font-weight: 900;
    transform: rotate(-5deg);
}
.steps strong { display: block; margin: 10px 0 2px; font-size: 17px; }
.steps span { color: var(--muted); }

.contact { padding-bottom: 90px; }
.contact-card {
    padding: 22px 18px;
    border: 3px solid var(--ink);
    border-radius: 18px;
    background: var(--berry);
    color: #fff;
    box-shadow: 8px 8px 0 var(--sun);
}

.contact-phone, .contact-email { display: block; font-weight: 900; }
.contact-phone { font-size: 24px; }
.contact-email { font-size: 17px; }
.contact-card > span { display: block; margin: 8px 0 16px; color: rgba(255,255,255,.78); }

.qr-list { display: flex; gap: 14px; }
.qr-item {
    width: 116px;
    padding: 7px;
    border-radius: 12px;
    background: #fff;
}
.qr-item img { width: 100%; aspect-ratio: 1/1; object-fit: cover; border-radius: 8px; }
.qr-item span { display: block; margin-top: 5px; color: var(--ink); text-align: center; font-size: 12px; font-weight: 800; }

.app-footer {
    padding: 22px 16px 90px;
    background: var(--ink);
    color: rgba(255,255,255,.72);
    font-size: 12px;
    text-align: center;
}
.app-footer a { display: block; margin-top: 6px; color: rgba(255,255,255,.72); }

.call-bar {
    position: fixed;
    left: 50%;
    bottom: calc(14px + env(safe-area-inset-bottom));
    z-index: 40;
    transform: translateX(-50%);
    min-height: 46px;
    padding: 0 22px;
    border: 3px solid var(--ink);
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    background: var(--blue);
    color: #fff;
    font-weight: 900;
    box-shadow: 4px 4px 0 var(--ink);
}

@media (min-width: 521px) {
    .app { box-shadow: none; }
}