:root {
    --navy: #062b5c;
    --blue: #078bc5;
    --cyan: #04cbbd;
    --ink: #173d62;
    --muted: #5d7690;
    --line: #d7e7ed;
    --soft: #f3f9fb;
    --white: #fff;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    background: radial-gradient(circle at 8% 8%, rgb(7 139 197 / .07), transparent 28%), radial-gradient(circle at 90% 90%, rgb(4 203 189 / .06), transparent 30%), #f4f8fa;
    color: var(--ink);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    margin: 0;
    min-height: 100vh;
}
a { color: inherit; }
.commercial-page { margin: 28px auto; max-width: 1420px; padding: 0 22px; }
.commercial-shell { background: var(--white); border: 1px solid var(--line); border-radius: 24px; box-shadow: 0 22px 55px rgb(6 43 92 / .09); overflow: hidden; position: relative; }
.commercial-shell::before { background: linear-gradient(90deg, var(--navy), var(--blue), var(--cyan)); content: ""; height: 6px; inset: 0 0 auto; position: absolute; }

.commercial-header { align-items: center; border-bottom: 1px solid #e3edf1; display: flex; justify-content: space-between; min-height: 118px; padding: 0 clamp(26px, 4vw, 62px); }
.commercial-header img { height: 104px; object-fit: contain; width: 210px; }
.commercial-header nav { align-items: center; display: flex; gap: 12px; }
.commercial-header a { border-radius: 11px; font-size: 12px; font-weight: 800; padding: 11px 15px; text-decoration: none; transition: background .2s ease, border-color .2s ease, transform .2s ease; }
.commercial-header .back-link { color: #43647c; }
.commercial-header .back-link:hover { background: #f1f7f9; }
.commercial-header .access-link { border: 1px solid #b9dfe7; color: #07658d; }
.commercial-header .access-link:hover { border-color: #53c2cf; transform: translateY(-1px); }

.commercial-layout { display: grid; grid-template-columns: minmax(0, .9fr) minmax(520px, 1.1fr); }
.commercial-intro { background: linear-gradient(145deg, #07345f, #075d7f 68%, #087f92); color: #fff; min-height: 710px; overflow: hidden; padding: clamp(55px, 6vw, 90px); position: relative; }
.commercial-intro::after { border: 1px solid rgb(255 255 255 / .1); border-radius: 45% 55% 60% 40%; content: ""; height: 390px; position: absolute; right: -180px; top: 220px; transform: rotate(-10deg); width: 390px; }
.commercial-kicker { color: #72ead8; display: block; font-size: 11px; font-weight: 900; letter-spacing: .16em; margin-bottom: 18px; text-transform: uppercase; }
.commercial-intro h1 { font-size: clamp(40px, 4vw, 60px); letter-spacing: -.045em; line-height: 1.04; margin: 0; max-width: 620px; text-wrap: balance; }
.commercial-intro > p { color: #cce0eb; font-size: 16px; line-height: 1.75; margin: 24px 0 0; max-width: 570px; }
.commercial-benefits { display: grid; gap: 13px; margin-top: 45px; position: relative; z-index: 1; }
.commercial-benefits article { align-items: center; background: rgb(255 255 255 / .075); border: 1px solid rgb(255 255 255 / .13); border-radius: 15px; display: flex; gap: 14px; padding: 15px; }
.commercial-benefits b { align-items: center; background: rgb(114 234 216 / .13); border-radius: 10px; color: #72ead8; display: flex; flex: 0 0 38px; height: 38px; justify-content: center; }
.commercial-benefits span { display: flex; flex-direction: column; gap: 3px; }
.commercial-benefits strong { font-size: 13px; }
.commercial-benefits small { color: #bbd2df; font-size: 10px; line-height: 1.45; }

.commercial-form-area { padding: clamp(42px, 5vw, 72px); }
.form-heading span { color: var(--blue); font-size: 10px; font-weight: 900; letter-spacing: .14em; text-transform: uppercase; }
.form-heading h2 { color: var(--navy); font-size: clamp(28px, 3vw, 38px); letter-spacing: -.03em; line-height: 1.15; margin: 10px 0 10px; }
.form-heading p { color: var(--muted); font-size: 13px; line-height: 1.65; margin: 0 0 30px; }
.commercial-form { display: grid; gap: 18px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.field { display: flex; flex-direction: column; gap: 7px; }
.field-full { grid-column: 1 / -1; }
.field label { color: #244a6e; font-size: 11px; font-weight: 850; letter-spacing: .035em; }
.field label span { color: #cc3344; }
.field input, .field select, .field textarea { background: #fbfdfe; border: 1px solid #cddfe7; border-radius: 11px; color: var(--ink); font: inherit; font-size: 13px; margin: 0; outline: 0; padding: 13px 14px; transition: background .2s ease, border-color .2s ease, box-shadow .2s ease; width: 100%; }
.field textarea { min-height: 112px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { background: #fff; border-color: #48b9ca; box-shadow: 0 0 0 4px rgb(4 203 189 / .1); }
.form-consent { align-items: flex-start; color: #5c7488; display: flex; font-size: 10px; gap: 9px; grid-column: 1 / -1; line-height: 1.55; }
.form-consent input { accent-color: #078bac; flex: 0 0 auto; margin-top: 2px; }
.form-consent a { color: #07658d; font-weight: 800; }
.commercial-submit { align-items: center; background: linear-gradient(135deg, #07658d, #078fba); border: 0; border-radius: 12px; box-shadow: 0 9px 20px rgb(6 89 124 / .2); color: #fff; cursor: pointer; display: inline-flex; font-size: 13px; font-weight: 850; gap: 15px; grid-column: 1 / -1; justify-content: center; min-height: 52px; padding: 13px 22px; transition: box-shadow .2s ease, transform .2s ease; }
.commercial-submit:hover { box-shadow: 0 13px 25px rgb(6 89 124 / .24); transform: translateY(-2px); }
.commercial-submit:disabled { cursor: wait; opacity: .7; transform: none; }
.form-feedback { border-radius: 11px; display: none; font-size: 12px; grid-column: 1 / -1; line-height: 1.5; padding: 13px 15px; }
.form-feedback.is-visible { display: block; }
.form-feedback.is-error { background: #fff3f3; border: 1px solid #fecaca; color: #a4262c; }
.form-feedback.is-success { background: #ecfdf7; border: 1px solid #b7ead8; color: #087c68; }
.form-trap { height: 0; left: -9999px; opacity: 0; overflow: hidden; pointer-events: none; position: absolute; width: 0; }
.commercial-direct { color: #6b8294; font-size: 10px; grid-column: 1 / -1; margin: -4px 0 0; text-align: center; }
.commercial-direct a { color: #075d7f; font-weight: 800; }

.commercial-footer { align-items: center; background: #fbfdfe; border-top: 1px solid #e3edf1; color: #6b8294; display: flex; font-size: 10px; justify-content: space-between; padding: 18px clamp(26px, 4vw, 62px); }
.commercial-footer strong { color: var(--navy); letter-spacing: .08em; }
.commercial-footer a { color: #075d7f; font-weight: 750; text-decoration: none; }

@media (max-width: 980px) {
    .commercial-layout { grid-template-columns: 1fr; }
    .commercial-intro { min-height: 0; }
    .commercial-benefits { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .commercial-benefits article { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 640px) {
    .commercial-page { margin: 0; padding: 0; }
    .commercial-shell { border: 0; border-radius: 0; }
    .commercial-header { min-height: 100px; padding: 0 16px; }
    .commercial-header img { height: 86px; width: 158px; }
    .commercial-header .back-link { font-size: 0; padding: 10px; }
    .commercial-header .back-link::before { content: "←"; font-size: 20px; }
    .commercial-header .access-link { font-size: 10px; padding: 9px 10px; }
    .commercial-intro { padding: 52px 20px; }
    .commercial-intro h1 { font-size: 39px; }
    .commercial-benefits { grid-template-columns: 1fr; margin-top: 34px; }
    .commercial-benefits article { align-items: center; flex-direction: row; }
    .commercial-form-area { padding: 44px 20px 52px; }
    .commercial-form { grid-template-columns: 1fr; }
    .field-full, .form-consent, .commercial-submit, .form-feedback, .commercial-direct { grid-column: auto; }
    .commercial-footer { align-items: flex-start; flex-direction: column; gap: 7px; padding: 18px 20px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}