:root {
    --bg: #050706;
    --bg-soft: #0b1110;
    --surface: rgba(255, 255, 255, 0.055);
    --surface-strong: rgba(255, 255, 255, 0.1);
    --line: rgba(255, 255, 255, 0.12);
    --text: #f4fff8;
    --muted: rgba(244, 255, 248, 0.68);
    --dim: rgba(244, 255, 248, 0.44);
    --green: #30d158;
    --green-dark: #1aa145;
    --blue: #58a6ff;
    --max: 1120px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    background: var(--bg);
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.62;
    letter-spacing: 0;
}

a {
    color: inherit;
}

.wrap {
    width: min(var(--max), calc(100% - 32px));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    border-bottom: 1px solid var(--line);
    background: rgba(5, 7, 6, 0.82);
    backdrop-filter: blur(18px);
}

.nav {
    width: min(var(--max), calc(100% - 32px));
    min-height: 64px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.brand,
.nav-links {
    display: flex;
    align-items: center;
}

.brand {
    gap: 10px;
    color: var(--text);
    text-decoration: none;
    font-weight: 850;
}

.brand-icon {
    width: 30px;
    height: 30px;
    border-radius: 7px;
}

.nav-links {
    gap: 18px;
    color: var(--muted);
    font-size: 14px;
    font-weight: 700;
}

.nav-links a {
    text-decoration: none;
}

.nav-links a:hover {
    color: var(--text);
}

.nav-cta {
    min-height: 38px;
    padding: 7px 14px;
    border-radius: 999px;
    color: #051008 !important;
    background: var(--green);
}

.hero {
    position: relative;
    min-height: calc(100svh - 64px);
    display: grid;
    align-items: center;
    overflow: hidden;
    border-bottom: 1px solid var(--line);
}

.hero-grid {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 50% 18%, rgba(48, 209, 88, 0.18), transparent 34rem),
        radial-gradient(circle at 82% 44%, rgba(88, 166, 255, 0.12), transparent 24rem),
        linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px),
        var(--bg);
    background-size: auto, auto, 42px 42px, 42px 42px, auto;
    mask-image: radial-gradient(ellipse 80% 68% at 50% 36%, black 18%, transparent 84%);
    -webkit-mask-image: radial-gradient(ellipse 80% 68% at 50% 36%, black 18%, transparent 84%);
}

.hero-inner {
    position: relative;
    z-index: 2;
    padding: 76px 0 86px;
    text-align: center;
}

.eyebrow {
    margin: 0 0 14px;
    color: var(--green);
    font-size: 13px;
    font-weight: 900;
    letter-spacing: 0;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1,
h2,
h3 {
    line-height: 1.08;
    letter-spacing: 0;
}

h1 {
    max-width: 920px;
    margin: 0 auto 22px;
    font-size: clamp(44px, 8vw, 92px);
    font-weight: 900;
}

h1 span {
    display: block;
    color: var(--green);
}

h2 {
    font-size: clamp(30px, 4.8vw, 54px);
    font-weight: 860;
}

h3 {
    font-size: 21px;
}

.hero-copy,
.lead {
    color: var(--muted);
    font-size: clamp(17px, 2vw, 21px);
}

.hero-copy {
    max-width: 720px;
    margin: 0 auto 30px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 20px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-weight: 850;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

.button:hover {
    transform: translateY(-1px);
}

.button-primary {
    color: #051008;
    background: var(--green);
    box-shadow: 0 0 36px rgba(48, 209, 88, 0.24);
}

.button-primary:hover {
    background: #54de75;
}

.button-secondary {
    color: var(--text);
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--line);
}

.button.full {
    width: 100%;
}

.hero-actions,
.signup-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.hero-actions {
    justify-content: center;
}

.hero-pricing {
    width: min(780px, 100%);
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin: 42px auto 0;
}

.hero-pricing div,
.method-grid article,
.presale-panel {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.22);
}

.signup-progress {
    margin: 20px 0;
}

.progress-head {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    color: var(--muted);
    font-size: 14px;
    font-weight: 800;
}

.progress-head b {
    color: var(--text);
}

.progress-track {
    height: 12px;
    margin-top: 10px;
    overflow: hidden;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.1);
}

.progress-fill {
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--green), var(--blue));
    transition: width 0.28s ease;
}

.hero-pricing div {
    min-height: 104px;
    padding: 18px;
    text-align: left;
}

.hero-pricing strong {
    display: block;
    font-size: 28px;
    line-height: 1.05;
}

.hero-pricing span {
    display: block;
    margin-top: 9px;
    color: var(--muted);
    font-size: 14px;
}

section {
    padding: 86px 0;
}

.video-section {
    background: #070b0a;
}

.video-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(290px, 0.62fr);
    gap: 30px;
    align-items: center;
}

.video-frame {
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #010302;
    box-shadow: 0 28px 80px rgba(0, 0, 0, 0.42);
    aspect-ratio: 16 / 9;
}

.video-frame iframe {
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
}

.video-copy p {
    color: var(--muted);
}

.text-link {
    color: var(--green);
    font-weight: 850;
}

.method-section {
    background:
        linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
        var(--bg-soft);
    background-size: 42px 42px;
}

.section-head {
    max-width: 800px;
    margin-bottom: 32px;
}

.method-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.method-grid article {
    min-height: 190px;
    padding: 22px;
}

.method-grid span {
    display: block;
    margin-bottom: 18px;
    color: var(--dim);
    font-weight: 900;
}

.method-grid b {
    display: block;
    margin-bottom: 10px;
    color: var(--green);
    font-size: 18px;
}

.method-grid p,
.fine-print {
    margin-bottom: 0;
    color: var(--muted);
}

.pricing-section {
    background: var(--bg);
}

.pricing-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.44fr);
    gap: 28px;
    align-items: start;
}

.pricing-section .lead {
    max-width: 680px;
}

.presale-panel {
    padding: 28px;
    background:
        radial-gradient(circle at 18% 0%, rgba(48, 209, 88, 0.16), transparent 20rem),
        rgba(255, 255, 255, 0.065);
    color: var(--text);
}

.presale-panel p,
.presale-panel .fine-print {
    color: var(--muted);
}

.panel-label {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 0 10px;
    border-radius: 999px;
    color: #051008;
    background: var(--green);
    font-size: 13px;
    font-weight: 900;
}

.price-big {
    margin-top: 16px;
    font-size: clamp(68px, 9vw, 104px);
    line-height: 0.92;
    font-weight: 950;
}

.countdown {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
    margin: 20px 0;
}

.countdown div {
    min-height: 72px;
    display: grid;
    place-items: center;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 7px;
    background: rgba(255, 255, 255, 0.06);
}

.countdown strong,
.countdown span {
    display: block;
    line-height: 1;
}

.countdown strong {
    font-size: 24px;
}

.countdown span {
    color: var(--muted);
    font-size: 12px;
}

.signup-section {
    background: #070b0a;
}

.signup-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(240px, 0.34fr) minmax(290px, 0.42fr);
    gap: 28px;
    align-items: start;
}

.payment-card {
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
}

.payment-card-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 12px;
}

.payment-card-head span {
    color: var(--green);
    font-size: 13px;
    font-weight: 900;
}

.payment-card-head strong {
    font-size: 22px;
}

.payment-card img {
    width: 100%;
    display: block;
    border-radius: 8px;
    background: white;
}

.payment-card p {
    margin: 12px 0 0;
    color: var(--muted);
    font-size: 14px;
}

.signup-form {
    display: grid;
    gap: 12px;
    padding: 20px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
}

.signup-form label {
    display: grid;
    gap: 7px;
}

.signup-form span {
    color: var(--muted);
    font-size: 13px;
    font-weight: 850;
}

.signup-form input,
.signup-form textarea {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--text);
    font: inherit;
    outline: none;
}

.signup-form input {
    min-height: 46px;
    padding: 0 13px;
}

.signup-form textarea {
    resize: vertical;
    min-height: 96px;
    padding: 11px 13px;
}

.signup-form input:focus,
.signup-form textarea:focus {
    border-color: rgba(48, 209, 88, 0.58);
    box-shadow: 0 0 0 3px rgba(48, 209, 88, 0.12);
}

.signup-form input::placeholder,
.signup-form textarea::placeholder {
    color: var(--dim);
}

.form-message {
    min-height: 22px;
    margin: 0;
    color: var(--green);
    font-size: 14px;
    font-weight: 800;
}

.form-message.error {
    color: #ff766c;
}

.site-footer {
    padding: 28px 0;
    border-top: 1px solid var(--line);
    color: var(--dim);
    background: var(--bg);
    font-size: 14px;
}

.site-footer .wrap {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.floating-cta {
    position: fixed;
    left: 50%;
    bottom: 16px;
    z-index: 40;
    width: min(520px, calc(100% - 24px));
    display: none;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(5, 7, 6, 0.88);
    box-shadow: 0 18px 58px rgba(0, 0, 0, 0.42);
    transform: translateX(-50%);
    backdrop-filter: blur(16px);
}

.floating-cta span {
    padding-left: 10px;
    font-weight: 900;
}

@media (max-width: 980px) {
    .video-layout,
    .pricing-layout,
    .signup-layout {
        grid-template-columns: 1fr;
    }

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

}

@media (max-width: 680px) {
    .nav {
        width: calc(100% - 20px);
    }

    .brand span {
        max-width: 36vw;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .nav-links a:not(.nav-cta) {
        display: none;
    }

    .hero {
        min-height: auto;
    }

    .hero-inner {
        padding: 52px 0 58px;
    }

    .hero-pricing,
    .countdown {
        grid-template-columns: 1fr;
    }

    section {
        padding: 58px 0;
    }

    .button {
        width: 100%;
    }

    .floating-cta {
        display: flex;
        border-radius: 8px;
    }

    .floating-cta .button {
        width: auto;
        min-width: 118px;
    }
}