:root {
    --green: oklch(67% 0.22 148);
    --green-dark: oklch(48% 0.16 148);
    --green-pale: oklch(94% 0.045 148);
    --ink: oklch(23% 0.025 150);
    --muted: oklch(48% 0.025 150);
    --line: oklch(87% 0.025 150);
    --surface: oklch(99% 0.004 150);
    --page: oklch(96% 0.012 150);
    --danger: oklch(50% 0.18 25);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-width: 320px;
    background: var(--page);
    color: var(--ink);
    font-family: 'Mukta Mahee', 'Microsoft YaHei', 'PingFang SC', sans-serif;
    font-size: 18px;
    line-height: 1.5;
}

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

button,
input,
textarea {
    font: inherit;
}

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

.site-shell {
    width: min(1180px, calc(100% - 48px));
    min-height: 100vh;
    margin: 0 auto;
    padding: 26px 0 28px;
}

.topbar,
.footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.topbar {
    min-height: 42px;
    margin-bottom: clamp(44px, 8vw, 96px);
}

.wordmark {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--ink);
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -.02em;
}

.wordmark-mark {
    display: grid;
    width: 30px;
    height: 30px;
    place-items: center;
    border-radius: 9px;
    background: var(--green);
    color: white;
    font-size: 1.25rem;
    line-height: 1;
}

.topbar-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--muted);
    font-size: .86rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 0 4px var(--green-pale);
}

.sales-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(360px, .8fr);
    gap: clamp(48px, 8vw, 112px);
    align-items: center;
}

.intro-panel {
    display: flex;
    min-height: 600px;
    flex-direction: column;
    justify-content: space-between;
    padding: clamp(26px, 4vw, 58px) 0;
}

.intro-copy {
    max-width: 620px;
}

.eyebrow,
.section-kicker {
    margin: 0 0 18px;
    color: var(--green-dark);
    font-size: .85rem;
    font-weight: 700;
    letter-spacing: .08em;
}

.eyebrow {
    text-transform: uppercase;
}

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

h1 {
    max-width: 100%;
    margin-bottom: 18px;
    color: var(--ink);
    font-size: clamp(4.5rem, 11vw, 8.6rem);
    font-weight: 700;
    letter-spacing: -.04em;
    line-height: .92;
    overflow-wrap: anywhere;
    text-wrap: balance;
}

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

.intro-text {
    max-width: 34rem;
    margin-bottom: 34px;
    color: var(--muted);
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    text-wrap: pretty;
}

.price-line {
    display: flex;
    align-items: baseline;
    gap: 16px;
    margin-bottom: 38px;
}

.price-label {
    color: var(--muted);
    font-size: .95rem;
}

.price-line strong {
    color: var(--green-dark);
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 700;
    letter-spacing: -.03em;
}

.intro-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: clamp(60px, 9vw, 100px);
}

.button {
    display: inline-flex;
    min-height: 52px;
    align-items: center;
    justify-content: center;
    gap: 18px;
    border: 0;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 700;
    line-height: 1;
    transition: transform .25s ease, background-color .25s ease, color .25s ease;
}

.button:hover {
    transform: translateY(-2px);
}

.button:focus-visible,
.copy-email:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 3px solid oklch(82% 0.15 148);
    outline-offset: 3px;
}

.button-primary,
.button-submit {
    padding: 0 22px;
    background: var(--green);
    color: white;
}

.button-primary:hover,
.button-submit:hover {
    background: var(--green-dark);
    color: white;
}

.button-quiet {
    padding: 0 20px;
    border: 1px solid var(--line);
    background: transparent;
    color: var(--ink);
}

.button-quiet:hover {
    border-color: var(--green);
    background: var(--green-pale);
}

.button-arrow {
    font-size: 1.3rem;
    line-height: 1;
}

.contact-block {
    display: flex;
    width: fit-content;
    align-items: center;
    gap: 16px;
    padding: 16px 20px 16px 16px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: var(--surface);
}

.contact-icon {
    display: grid;
    width: 46px;
    height: 46px;
    flex: 0 0 46px;
    place-items: center;
    border-radius: 12px;
    background: var(--green-pale);
    color: var(--green-dark);
    font-size: 1.45rem;
    font-weight: 700;
}

.contact-label {
    margin-bottom: 2px;
    color: var(--muted);
    font-size: .8rem;
}

.contact-email {
    display: inline-block;
    color: var(--green-dark);
    font-size: 1.2rem;
    font-weight: 700;
}

.contact-email:hover {
    color: var(--green);
}

.copy-email {
    margin-left: 10px;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--green-dark);
    cursor: pointer;
    font-size: .8rem;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.copy-status {
    min-height: 1.2em;
    margin: 2px 0 0;
    color: var(--green-dark);
    font-size: .76rem;
}

.intro-footnote {
    max-width: 25rem;
    margin: 0;
    color: var(--muted);
    font-size: .86rem;
}

.offer-panel {
    padding: clamp(26px, 4vw, 46px);
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--surface);
}

.offer-heading {
    padding-bottom: 24px;
    border-bottom: 1px solid var(--line);
    margin-bottom: 28px;
}

.section-kicker {
    margin-bottom: 8px;
    color: var(--green);
}

.offer-heading h2 {
    margin-bottom: 8px;
    font-size: clamp(1.65rem, 3vw, 2.2rem);
    letter-spacing: -.025em;
    line-height: 1.1;
    text-wrap: balance;
}

.offer-heading p:last-child {
    margin-bottom: 0;
    color: var(--muted);
    font-size: .95rem;
}

.field-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.field-group {
    margin-bottom: 18px;
}

.field-group label {
    display: block;
    margin-bottom: 7px;
    color: var(--ink);
    font-size: .9rem;
    font-weight: 700;
}

.field-group label span {
    color: var(--muted);
    font-size: .78rem;
    font-weight: 400;
}

input,
textarea {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 9px;
    background: white;
    color: var(--ink);
    font-size: 1rem;
    transition: border-color .2s ease, box-shadow .2s ease;
}

input {
    height: 48px;
    padding: 0 14px;
}

textarea {
    min-height: 112px;
    padding: 12px 14px;
    resize: vertical;
}

input::placeholder,
textarea::placeholder {
    color: oklch(49% 0.025 150);
    opacity: 1;
}

input:hover,
textarea:hover,
input:focus,
textarea:focus {
    border-color: var(--green);
    box-shadow: 0 0 0 3px var(--green-pale);
    outline: 0;
}

.input-with-prefix {
    position: relative;
}

.input-with-prefix span {
    position: absolute;
    top: 50%;
    left: 14px;
    color: var(--green-dark);
    font-weight: 700;
    pointer-events: none;
    transform: translateY(-50%);
}

.input-with-prefix input {
    padding-left: 32px;
}

.button-submit {
    width: 100%;
    min-height: 56px;
    margin-top: 4px;
    font-size: 1.05rem;
}

.form-note {
    margin: 14px 0 0;
    color: var(--muted);
    font-size: .82rem;
    text-align: center;
}

.form-control-feedback {
    margin-top: 6px;
    color: var(--danger);
    font-size: .8rem;
}

.has-danger input,
.has-danger textarea {
    border-color: var(--danger);
}

.footer {
    margin-top: clamp(50px, 8vw, 92px);
    padding-top: 20px;
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: .8rem;
}

@media (max-width: 820px) {
    .site-shell {
        width: min(100% - 32px, 620px);
        padding-top: 18px;
    }

    .topbar {
        margin-bottom: 48px;
    }

    .sales-layout {
        grid-template-columns: 1fr;
        gap: 42px;
    }

    .intro-panel {
        min-height: auto;
        padding: 0;
    }

    .intro-actions {
        margin-bottom: 42px;
    }

    .contact-block {
        width: 100%;
    }

    .intro-footnote {
        display: none;
    }

    .offer-panel {
        padding: 26px 20px;
    }
}

@media (max-width: 520px) {
    body {
        font-size: 16px;
    }

    .site-shell {
        width: min(100% - 24px, 620px);
    }

    .topbar-status {
        font-size: .78rem;
    }

    h1 {
        font-size: clamp(3.7rem, 19vw, 6rem);
    }

    .intro-text {
        margin-bottom: 24px;
        font-size: 1.08rem;
    }

    .price-line {
        margin-bottom: 28px;
    }

    .intro-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .button {
        width: 100%;
    }

    .field-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .contact-email {
        font-size: 1.03rem;
    }

    .copy-email {
        display: block;
        margin: 4px 0 0;
    }

    .footer {
        align-items: flex-start;
        flex-direction: column;
        gap: 4px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
    }
}