:root {
    --ink: #10202f;
    --muted: #657080;
    --line: rgba(21, 40, 58, 0.12);
    --paper: #f6f2e9;
    --cream: #fff9ed;
    --green: #13453f;
    --teal: #1e7c78;
    --gold: #d79634;
    --orange: #f06f32;
    --shadow: 0 26px 80px rgba(14, 35, 49, 0.16);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background:
        radial-gradient(circle at 12% 8%, rgba(215, 150, 52, 0.2), transparent 28rem),
        radial-gradient(circle at 88% 15%, rgba(30, 124, 120, 0.18), transparent 24rem),
        var(--paper);
    color: var(--ink);
    font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
}

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

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

.site-shell {
    min-width: 1180px;
    overflow: hidden;
}

.hero {
    min-height: 760px;
    padding: 30px 64px 88px;
    position: relative;
}

.hero::before {
    background-image:
        linear-gradient(rgba(16, 32, 47, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(16, 32, 47, 0.08) 1px, transparent 1px);
    background-size: 42px 42px;
    content: "";
    inset: 0;
    mask-image: linear-gradient(to bottom, #000, transparent 78%);
    pointer-events: none;
    position: absolute;
}

.site-nav,
.hero-grid,
.section,
.site-footer {
    margin: 0 auto;
    max-width: 1280px;
    position: relative;
    z-index: 1;
}

.site-nav {
    align-items: center;
    display: flex;
    justify-content: space-between;
}

.brand {
    align-items: center;
    display: flex;
    gap: 14px;
}

.brand-mark {
    align-items: center;
    background: var(--green);
    border-radius: 18px;
    color: var(--cream);
    display: inline-flex;
    font-weight: 800;
    height: 52px;
    justify-content: center;
    letter-spacing: 0.08em;
    width: 52px;
}

.brand strong,
.brand small {
    display: block;
}

.brand strong {
    font-size: 20px;
}

.brand small {
    color: var(--muted);
    font-size: 12px;
    margin-top: 3px;
}

.nav-links {
    align-items: center;
    background: rgba(255, 249, 237, 0.72);
    border: 1px solid rgba(255, 255, 255, 0.72);
    border-radius: 999px;
    box-shadow: 0 12px 40px rgba(16, 32, 47, 0.08);
    display: flex;
    gap: 10px;
    padding: 8px;
}

.nav-links a {
    border-radius: 999px;
    color: #3f4d59;
    font-size: 14px;
    padding: 10px 18px;
}

.nav-links a:hover {
    background: var(--green);
    color: var(--cream);
}

.hero-grid {
    align-items: center;
    display: grid;
    gap: 74px;
    grid-template-columns: 1.08fr 0.92fr;
    padding-top: 96px;
}

.hero-copy {
    max-width: 720px;
}

.eyebrow,
.section-heading span {
    color: var(--orange);
    display: inline-block;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.16em;
    margin-bottom: 18px;
    text-transform: uppercase;
}

.hero h1 {
    font-size: 68px;
    font-weight: 900;
    letter-spacing: -0.05em;
    line-height: 1.04;
}

.hero p {
    color: #4c5a66;
    font-size: 19px;
    line-height: 1.9;
    margin-top: 28px;
    max-width: 660px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-top: 40px;
}

.primary-action,
.secondary-action {
    border-radius: 999px;
    font-weight: 700;
    padding: 16px 26px;
}

.primary-action {
    background: var(--green);
    box-shadow: 0 18px 40px rgba(19, 69, 63, 0.26);
    color: var(--cream);
}

.secondary-action {
    border: 1px solid var(--line);
    color: var(--green);
}

.hero-card {
    aspect-ratio: 1 / 1;
    background:
        radial-gradient(circle at 50% 50%, rgba(255, 249, 237, 0.95), rgba(255, 249, 237, 0.2) 34%, transparent 35%),
        conic-gradient(from 140deg, rgba(30, 124, 120, 0.82), rgba(215, 150, 52, 0.72), rgba(240, 111, 50, 0.62), rgba(30, 124, 120, 0.82));
    border-radius: 52px;
    box-shadow: var(--shadow);
    min-height: 520px;
    position: relative;
}

.orbit {
    border: 1px solid rgba(255, 249, 237, 0.68);
    border-radius: 50%;
    inset: 52px;
    position: absolute;
}

.orbit-two {
    inset: 108px;
}

.control-panel {
    background: rgba(16, 32, 47, 0.88);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 34px;
    bottom: 44px;
    color: var(--cream);
    left: 44px;
    padding: 30px;
    position: absolute;
    right: 44px;
}

.panel-status {
    color: #98f1d4;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.2em;
}

.control-panel h2 {
    font-size: 30px;
    margin-top: 12px;
}

.signal-list {
    display: grid;
    gap: 10px;
    grid-template-columns: repeat(2, 1fr);
    margin-top: 22px;
}

.signal-list span,
.delivery-points span {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 16px;
    padding: 12px 14px;
}

.section {
    padding: 94px 64px;
}

.section-heading {
    max-width: 720px;
}

.section-heading h2,
.delivery h2 {
    font-size: 46px;
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1.16;
}

.section-heading p,
.delivery p {
    color: var(--muted);
    font-size: 17px;
    line-height: 1.9;
    margin-top: 18px;
}

.capability-grid {
    display: grid;
    gap: 22px;
    grid-template-columns: repeat(4, 1fr);
    margin-top: 42px;
}

.capability-card {
    background: rgba(255, 249, 237, 0.76);
    border: 1px solid rgba(255, 255, 255, 0.74);
    border-radius: 30px;
    box-shadow: 0 18px 54px rgba(16, 32, 47, 0.08);
    min-height: 260px;
    padding: 28px;
}

.capability-card span {
    color: var(--gold);
    font-size: 14px;
    font-weight: 900;
}

.capability-card h3 {
    font-size: 24px;
    margin-top: 54px;
}

.capability-card p,
.solution-item p {
    color: var(--muted);
    line-height: 1.8;
    margin-top: 14px;
}

.solutions {
    background: var(--green);
    border-radius: 56px;
    color: var(--cream);
}

.solutions .section-heading span,
.solutions .section-heading p {
    color: #f5c36f;
}

.solution-list {
    display: grid;
    gap: 18px;
    margin-top: 40px;
}

.solution-item {
    align-items: center;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 26px;
    display: grid;
    gap: 26px;
    grid-template-columns: 240px 1fr;
    padding: 26px 30px;
}

.solution-item strong {
    font-size: 24px;
}

.solution-item p {
    color: rgba(255, 249, 237, 0.76);
    margin: 0;
}

.delivery {
    align-items: center;
    display: grid;
    gap: 60px;
    grid-template-columns: 0.95fr 1.05fr;
}

.delivery-points {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(5, 1fr);
}

.delivery-points span {
    background: var(--cream);
    border-color: var(--line);
    box-shadow: 0 16px 44px rgba(16, 32, 47, 0.08);
    color: var(--green);
    font-weight: 800;
    min-height: 138px;
    padding-top: 28px;
    text-align: center;
}

.site-footer {
    align-items: center;
    border-top: 1px solid var(--line);
    display: flex;
    justify-content: space-between;
    padding: 34px 64px 42px;
}

.site-footer strong {
    font-size: 18px;
}

.site-footer p,
.records {
    color: var(--muted);
    font-size: 14px;
    margin-top: 8px;
}

.records {
    display: flex;
    gap: 18px;
    margin-top: 0;
}

.btn:focus,
.btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus,
.form-check-input:focus {
    box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem var(--teal);
}

h1:focus {
    outline: none;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid #e50000;
}

.validation-message {
    color: #e50000;
}

.blazor-error-boundary {
    background: #b32121;
    color: white;
    padding: 1rem;
}

.blazor-error-boundary::after {
    content: "An error has occurred.";
}