* { box-sizing: border-box; }

:root {
    --blue: #245bff;
    --blue-2: #4f8cff;
    --ink: #0b1a3a;
    --muted: #6c7c99;
    --line: #e7effa;
    --soft: #f5f9ff;
}

html, body { margin: 0; padding: 0; }

body {
    color: var(--ink);
    background: #fff;
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}

a { -webkit-tap-highlight-color: transparent; }

.lay {
    width: min(1200px, calc(100% - 48px));
    margin: 0 auto;
}

.site-nav {
    position: sticky;
    top: 0;
    z-index: 60;
    background: rgba(247, 251, 255, .9);
    border-bottom: 1px solid rgba(222, 235, 252, .8);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}
.nav-inner {
    height: 74px;
    display: flex;
    align-items: center;
    gap: 26px;
}
.nav-brand {
    display: inline-flex;
    align-items: center;
    gap: 11px;
    color: var(--ink);
    text-decoration: none;
    font-size: 19px;
    font-weight: 800;
    letter-spacing: .02em;
    min-width: 0;
}
.nav-logo {
    width: 38px;
    height: 38px;
    flex: 0 0 38px;
    display: grid;
    place-items: center;
    overflow: hidden;
    border-radius: 10px;
    background: linear-gradient(135deg, #5b9cff, #2f6bff);
    box-shadow: 0 8px 18px rgba(47, 107, 255, .28);
}
.nav-logo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.nav-name { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
    margin-left: auto;
}
.nav-menu a {
    position: relative;
    color: #3e4a66;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    padding: 6px 0;
}
.nav-menu a:hover { color: var(--blue); }
.nav-menu a.active { color: var(--blue); }
.nav-menu a.active::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -4px;
    width: 16px;
    height: 3px;
    margin-left: -8px;
    border-radius: 3px;
    background: var(--blue);
}
.nav-cta {
    display: inline-block;
    padding: 10px 24px;
    border-radius: 9px;
    background: linear-gradient(135deg, #2f6bff, #245bff);
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
    white-space: nowrap;
    box-shadow: 0 10px 22px rgba(36, 91, 255, .28);
    transition: transform .2s ease, box-shadow .2s ease;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 14px 28px rgba(36, 91, 255, .36); }

.hero {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle at 78% 18%, rgba(255, 255, 255, .9) 0, rgba(255, 255, 255, 0) 42%),
        radial-gradient(circle at 12% 70%, rgba(210, 235, 255, .8) 0, rgba(210, 235, 255, 0) 40%),
        linear-gradient(180deg, #f4faff 0%, #eaf4ff 62%, #e4f1ff 100%);
}
.hero::before,
.hero::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}
.hero::before {
    width: 620px;
    height: 620px;
    right: -190px;
    top: -250px;
    border: 70px solid rgba(255, 255, 255, .5);
}
.hero::after {
    width: 260px;
    height: 260px;
    left: -150px;
    bottom: -150px;
    border: 55px solid rgba(174, 211, 255, .35);
}
.hero-inner {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.04fr .96fr;
    align-items: center;
    gap: 34px;
    min-height: 574px;
    padding: 34px 0 26px;
}
.hero-copy h1 {
    margin: 0;
    font-size: clamp(34px, 3.55vw, 54px);
    line-height: 1.34;
    letter-spacing: -.025em;
    font-weight: 900;
    color: #081735;
}
.hero-copy p {
    margin: 22px 0 0;
    color: #5c6d8c;
    font-size: clamp(14px, 1.25vw, 17px);
    letter-spacing: .01em;
}
.hero-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 34px;
}
.btn-primary {
    display: inline-block;
    padding: 15px 34px;
    border-radius: 999px;
    background: linear-gradient(135deg, #3d7bff, #245bff);
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    text-decoration: none;
    box-shadow: 0 14px 30px rgba(36, 91, 255, .30);
    transition: transform .2s ease, box-shadow .2s ease;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 18px 36px rgba(36, 91, 255, .38); }
.btn-outline {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 999px;
    border: 1.5px solid #b9d2f7;
    background: rgba(255, 255, 255, .55);
    color: #245bff;
    font-size: 15px;
    font-weight: 700;
    text-decoration: none;
    transition: border-color .2s ease, background .2s ease;
}
.btn-outline:hover { border-color: #7fa9f2; background: #fff; }
.hero-visual {
    width: 100%;
    max-width: 600px;
    justify-self: end;
}
.hero-visual svg { width: 100%; height: auto; display: block; }
.hero-dots {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding-bottom: 26px;
}
.hero-dots i {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #9fc2ec;
    opacity: .55;
}
.hero-dots i.on {
    width: 22px;
    border-radius: 6px;
    background: var(--blue);
    opacity: 1;
}

.band-white { padding: 82px 0; background: #fff; }
.band-soft { padding: 82px 0; background: var(--soft); border-top: 1px solid #eef4fd; border-bottom: 1px solid #eef4fd; }
.section { position: relative; }
.sec-title { text-align: center; margin-bottom: 44px; }
.sec-title h2 {
    margin: 0;
    font-size: clamp(25px, 2.35vw, 33px);
    font-weight: 800;
    letter-spacing: .01em;
    color: var(--ink);
}
.sec-title p {
    margin: 13px 0 0;
    color: #8191ad;
    font-size: 13px;
    letter-spacing: .02em;
}
.sec-title p::before,
.sec-title p::after {
    content: "";
    display: inline-block;
    vertical-align: middle;
    width: 42px;
    height: 1px;
    margin: 0 14px;
    background: linear-gradient(90deg, transparent, #d5e3f5);
}
.sec-title p::after { background: linear-gradient(90deg, #d5e3f5, transparent); }

.rate-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
}
.rate-card {
    padding: 38px 22px 34px;
    text-align: center;
    border-radius: 16px;
    background: #fff;
    border: 1px solid #ebf1fb;
    box-shadow: 0 12px 30px rgba(36, 74, 140, .06);
    transition: transform .22s ease, box-shadow .22s ease;
}
.rate-card:hover { transform: translateY(-3px); box-shadow: 0 20px 42px rgba(36, 74, 140, .10); }
.rate-icon {
    width: 62px;
    height: 62px;
    margin: 0 auto 22px;
    display: grid;
    place-items: center;
    border-radius: 18px;
    background: #eef5ff;
    color: var(--blue);
}
.rate-icon svg { width: 30px; height: 30px; }
.rate-icon.wechat { background: #e8f9ef; color: #11b34c; border-radius: 50%; }
.rate-icon.alipay { background: #e8f1ff; color: #1677ff; }
.rate-icon.alipay.glyph { font-size: 30px; font-weight: 600; font-family: "Songti SC", "STSong", serif; }
.rate-icon.union { background: #e9f2ff; color: #2f6bff; }
.rate-icon.union svg { fill: currentColor; stroke: none; }
.rate-icon.h5 { background: #eaf3ff; color: #2f6bff; }
.rate-card h3 { margin: 0 0 12px; font-size: 17px; font-weight: 800; color: var(--ink); }
.rate-card p { margin: 0 0 18px; color: #8594ae; font-size: 12px; line-height: 1.8; min-height: 44px; }
.rate-tag { color: var(--blue); font-size: 12px; font-weight: 700; letter-spacing: .02em; }

.data-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
}
.data-card {
    padding: 28px 24px 26px;
    border-radius: 14px;
    background: #fff;
    border: 1px solid #eaf1fc;
    box-shadow: 0 10px 26px rgba(36, 74, 140, .05);
}
.data-ico {
    width: 30px;
    height: 30px;
    display: grid;
    place-items: center;
    border-radius: 9px;
    background: #eef5ff;
    color: var(--blue);
    margin-bottom: 14px;
}
.data-ico svg { width: 17px; height: 17px; }
.data-eyebrow {
    display: block;
    color: #8090ac;
    font-size: 11.5px;
    font-weight: 600;
    letter-spacing: .04em;
    margin-bottom: 10px;
}
.data-card h3 { margin: 0 0 10px; font-size: 17px; font-weight: 800; color: var(--ink); }
.data-card p { margin: 0; color: #8594ae; font-size: 12px; line-height: 1.8; }

.flow {
    position: relative;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
    padding-top: 52px;
}
.flow-line {
    position: absolute;
    left: 11%;
    right: 11%;
    top: 23px;
    border-top: 2px dashed #cfe1fa;
}
.flow-no {
    position: absolute;
    top: -46px;
    left: 50%;
    width: 42px;
    height: 42px;
    margin-left: -21px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: #fff;
    border: 2px solid var(--blue);
    color: var(--blue);
    font-size: 15px;
    font-weight: 800;
    box-shadow: 0 0 0 7px #fff;
    z-index: 2;
}
.flow-item { position: relative; }
.flow-card {
    height: 100%;
    padding: 32px 16px 28px;
    text-align: center;
    border-radius: 14px;
    background: #fff;
    border: 1px solid #e9f0fb;
    box-shadow: 0 12px 30px rgba(36, 74, 140, .06);
}
.flow-ico {
    width: 58px;
    height: 58px;
    margin: 0 auto 18px;
    display: grid;
    place-items: center;
    border-radius: 16px;
    background: #edf5ff;
    color: var(--blue);
}
.flow-ico svg { width: 28px; height: 28px; }
.flow-card h3 { margin: 0 0 9px; font-size: 15px; font-weight: 800; color: var(--ink); }
.flow-card p { margin: 0; color: #8594ae; font-size: 11.5px; line-height: 1.7; }

.plan-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
}
.plan-card {
    position: relative;
    padding: 34px 22px 30px;
    text-align: center;
    border-radius: 16px;
    background: #fff;
    border: 1px solid #eaf1fc;
    box-shadow: 0 12px 30px rgba(36, 74, 140, .05);
}
.plan-card.featured {
    border-color: #9fc0ff;
    box-shadow: 0 18px 42px rgba(36, 91, 255, .14);
}
.plan-badge {
    position: absolute;
    top: 14px;
    right: 14px;
    padding: 4px 10px;
    border-radius: 999px;
    background: #eaf2ff;
    color: var(--blue);
    font-size: 10px;
    font-weight: 700;
}
.plan-ico {
    width: 58px;
    height: 58px;
    margin: 0 auto 20px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: #eaf3ff;
    color: var(--blue);
}
.plan-ico svg { width: 28px; height: 28px; }
.plan-card h3 { margin: 0 0 11px; font-size: 17px; font-weight: 800; color: var(--ink); }
.plan-card p { margin: 0 0 18px; color: #8594ae; font-size: 12px; line-height: 1.8; min-height: 44px; }
.plan-note { color: var(--blue); font-size: 12px; font-weight: 700; }

.faq-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}
.faq-card {
    padding: 32px 26px 30px;
    border-radius: 16px;
    background: #fff;
    border: 1px solid #eaf1fc;
    box-shadow: 0 12px 30px rgba(36, 74, 140, .05);
}
.faq-ico {
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    border-radius: 14px;
    background: #edf5ff;
    color: var(--blue);
    margin-bottom: 20px;
}
.faq-ico svg { width: 26px; height: 26px; }
.faq-card h3 { margin: 0 0 12px; font-size: 16px; font-weight: 800; color: var(--ink); }
.faq-card p { margin: 0; color: #8594ae; font-size: 12px; line-height: 1.85; }

.site-footer { background: #0b1730; color: #fff; padding: 58px 0 0; }
.footer-grid {
    display: grid;
    grid-template-columns: 1.7fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 42px;
}
.footer-logo { display: flex; align-items: center; gap: 11px; }
.footer-mark {
    width: 40px;
    height: 40px;
    flex: 0 0 40px;
    display: grid;
    place-items: center;
    overflow: hidden;
    border-radius: 10px;
    background: linear-gradient(135deg, #5b9cff, #2f6bff);
}
.footer-mark img { width: 100%; height: 100%; object-fit: cover; display: block; }
.footer-logo strong { font-size: 18px; letter-spacing: .04em; }
.footer-slogan { margin: 18px 0 8px; color: rgba(255, 255, 255, .72); font-size: 13px; }
.footer-copy { margin: 0; color: rgba(255, 255, 255, .42); font-size: 11px; }
.footer-col h4 { margin: 4px 0 18px; font-size: 14px; font-weight: 700; color: #fff; }
.footer-col a {
    display: block;
    margin-bottom: 12px;
    color: rgba(255, 255, 255, .62);
    font-size: 12px;
    text-decoration: none;
}
.footer-col a:hover { color: #fff; }
.footer-bottom {
    padding: 16px 0 20px;
    border-top: 1px solid rgba(255, 255, 255, .10);
    text-align: center;
    color: rgba(255, 255, 255, .35);
    font-size: 11px;
}

@media (max-width: 1024px) {
    .nav-menu { gap: 18px; }
    .hero-inner { min-height: auto; padding: 46px 0 30px; grid-template-columns: 1fr; gap: 20px; }
    .hero-copy { max-width: 620px; }
    .hero-visual { max-width: 480px; justify-self: center; }
    .rate-grid, .data-grid, .plan-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .flow { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 30px; }
    .flow-line { display: none; }
    .faq-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .footer-grid { grid-template-columns: 1.6fr 1fr 1fr; gap: 28px; }
}

@media (max-width: 720px) {
    .lay { width: calc(100% - 30px); }
    .site-nav { position: relative; }
    .nav-inner { height: 62px; gap: 12px; }
    .nav-brand { font-size: 15px; }
    .nav-logo { width: 32px; height: 32px; flex-basis: 32px; border-radius: 8px; }
    .nav-menu { display: none; }
    .nav-cta { margin-left: auto; padding: 9px 17px; font-size: 12px; }
    .hero-inner { padding: 36px 0 18px; }
    .hero-copy h1 { font-size: clamp(27px, 8.2vw, 36px); line-height: 1.4; }
    .hero-copy p { margin-top: 14px; font-size: 13px; }
    .hero-actions { margin-top: 24px; gap: 10px; }
    .btn-primary, .btn-outline { padding: 12px 22px; font-size: 13px; }
    .hero-visual { max-width: 340px; }
    .hero-dots { padding-bottom: 18px; }
    .band-white, .band-soft { padding: 54px 0; }
    .sec-title { margin-bottom: 30px; }
    .sec-title h2 { font-size: 24px; }
    .sec-title p { font-size: 12px; }
    .sec-title p::before, .sec-title p::after { width: 20px; margin: 0 8px; }
    .rate-grid, .data-grid, .plan-grid, .faq-grid { grid-template-columns: 1fr; gap: 14px; }
    .rate-card, .data-card, .plan-card, .faq-card { padding: 26px 20px; }
    .rate-card p, .plan-card p { min-height: 0; }
    .flow { grid-template-columns: 1fr 1fr; gap: 12px; padding-top: 0; }
    .flow-no { position: relative; left: auto; top: auto; margin: 0 auto 12px; width: 34px; height: 34px; font-size: 13px; box-shadow: none; }
    .flow-card { padding: 22px 12px; }
    .flow-ico { width: 48px; height: 48px; margin-bottom: 14px; }
    .flow-ico svg { width: 23px; height: 23px; }
    .flow-card h3 { font-size: 13.5px; }
    .footer-grid { grid-template-columns: 1fr; gap: 26px; padding-bottom: 30px; }
    .footer-col h4 { margin-bottom: 12px; }
}