:root {
    --ink: #0a2a58;
    --ink-soft: #071F44;
    --navy: #17549e;
    --ivory: #eef5ff;
    --paper: #f9fcff;
    --white: #ffffff;
    --gold: #2f7df6;
    --gold-light: #a7cfff;
    --teal: #58b7ff;
    --text: #142b4a;
    --muted: #66798f;
    --muted-light: #c8d7ea;
    --line: rgba(23, 84, 158, 0.16);
    --line-light: rgba(255, 255, 255, 0.14);
    --header-height: 78px;
    --radius: 8px;
    --shadow: 0 28px 80px rgba(10, 42, 88, 0.16);
    --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", Arial, sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    min-width: 320px;
    background: var(--paper);
    color: var(--text);
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.75;
    overflow-x: hidden;
    text-rendering: optimizeLegibility;
}

img {
    display: block;
    max-width: 100%;
}

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

button {
    color: inherit;
    font: inherit;
}

svg {
    display: block;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.8;
}

::selection {
    background: var(--gold);
    color: var(--white);
}

.skip-link {
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 2000;
    padding: 10px 16px;
    background: var(--gold);
    color: var(--ink);
    border-radius: var(--radius);
    transform: translateY(-150%);
    transition: transform 0.2s ease;
}

.skip-link:focus {
    transform: translateY(0);
}

.section {
    position: relative;
    padding: 128px 0;
    scroll-margin-top: var(--header-height);
}

.section-shell {
    width: min(1180px, calc(100% - 56px));
    margin: 0 auto;
}

.section-kicker {
    margin-bottom: 24px;
    color: var(--gold);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.18em;
    line-height: 1.4;
}

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

h1,
h2,
h3 {
    color: var(--ink);
    font-weight: 600;
    letter-spacing: 0;
}

h2 {
    font-size: 56px;
    line-height: 1.16;
}

h3 {
    font-size: 22px;
    line-height: 1.4;
}

.section-lead {
    color: var(--muted);
    font-size: 18px;
    line-height: 1.9;
}

.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition:
        opacity 0.75s cubic-bezier(0.22, 1, 0.36, 1),
        transform 0.75s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    min-height: 52px;
    padding: 0 24px;
    border: 1px solid transparent;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    line-height: 1;
    transition:
        color 0.25s ease,
        background-color 0.25s ease,
        border-color 0.25s ease,
        transform 0.25s ease,
        box-shadow 0.25s ease;
}

.button svg {
    width: 19px;
    height: 19px;
}

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

.button-primary {
    background: var(--gold);
    color: var(--white);
    box-shadow: 0 12px 30px rgba(47, 125, 246, 0.24);
}

.button-primary:hover {
    background: #1767d5;
    box-shadow: 0 16px 36px rgba(47, 125, 246, 0.32);
}

.button-ghost {
    border-color: rgba(255, 255, 255, 0.32);
    background: rgba(255, 255, 255, 0.04);
    color: var(--white);
}

.button-ghost:hover {
    border-color: rgba(255, 255, 255, 0.7);
    background: rgba(255, 255, 255, 0.1);
}

.button-light {
    background: var(--white);
    color: var(--ink);
}

.button-light:hover {
    background: var(--gold-light);
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    width: 100%;
    height: var(--header-height);
    border-bottom: 1px solid transparent;
    background: transparent;
    color: var(--white);
    transition:
        background-color 0.35s ease,
        border-color 0.35s ease,
        box-shadow 0.35s ease;
}

.site-header.is-scrolled {
    border-color: rgba(255, 255, 255, 0.1);
    background: rgba(10, 42, 88, 0.94);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
}

.nav-wrap {
    display: flex;
    align-items: center;
    width: min(1280px, calc(100% - 48px));
    height: 100%;
    margin: 0 auto;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    flex: 0 0 auto;
}

.brand-mark {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.07);
    color: var(--gold-light);
    font-size: 20px;
    font-weight: 700;
    line-height: 1;
}

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.25;
}

.brand-text strong {
    font-size: 17px;
    font-weight: 600;
    letter-spacing: 0.06em;
}

.brand-text small {
    margin-top: 3px;
    color: var(--gold-light);
    font-size: 9px;
    font-weight: 600;
    letter-spacing: 0.18em;
}

.primary-nav {
    display: flex;
    align-items: center;
    gap: 38px;
    margin-left: auto;
}

.primary-nav ul {
    display: flex;
    align-items: center;
    gap: 27px;
    list-style: none;
}

.nav-link {
    position: relative;
    display: block;
    padding: 9px 0;
    color: rgba(255, 255, 255, 0.76);
    font-size: 14px;
    font-weight: 500;
    transition: color 0.25s ease;
}

.nav-link::after {
    position: absolute;
    right: 0;
    bottom: 2px;
    left: 0;
    height: 1px;
    background: var(--gold-light);
    content: "";
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

.nav-link:hover,
.nav-link.is-active {
    color: var(--white);
}

.nav-link:hover::after,
.nav-link.is-active::after {
    transform: scaleX(1);
    transform-origin: left;
}

.nav-email {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 13px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--white);
    font-size: 12px;
    transition:
        border-color 0.25s ease,
        background-color 0.25s ease;
}

.nav-email:hover {
    border-color: var(--gold-light);
    background: rgba(255, 255, 255, 0.07);
}

.nav-email svg {
    width: 15px;
    height: 15px;
}

.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    margin-left: auto;
    padding: 11px 9px;
    border: 1px solid rgba(255, 255, 255, 0.26);
    background: transparent;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 1px;
    margin: 5px 0;
    background: var(--white);
    transition:
        transform 0.3s ease,
        opacity 0.3s ease;
}

.menu-open .menu-toggle span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.menu-open .menu-toggle span:nth-child(2) {
    opacity: 0;
}

.menu-open .menu-toggle span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

.hero {
    position: relative;
    display: flex;
    min-height: calc(100vh - var(--header-height));
    align-items: center;
    overflow: hidden;
    padding: 112px 0 128px;
    background: var(--ink);
    color: var(--white);
}

.hero-media {
    position: absolute;
    inset: 0;
}

.hero-media::after {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(4, 26, 62, 0.97) 0%, rgba(4, 26, 62, 0.86) 38%, rgba(4, 26, 62, 0.38) 74%, rgba(4, 26, 62, 0.2) 100%),
        linear-gradient(0deg, rgba(4, 26, 62, 0.68) 0%, transparent 34%);
    content: "";
}

.hero-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-content {
    position: relative;
    z-index: 2;
    width: min(1180px, calc(100% - 56px));
    margin: 0 auto;
}

.eyebrow {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 26px;
    color: var(--gold-light);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.2em;
}

.eyebrow-line {
    display: block;
    width: 42px;
    height: 1px;
    background: var(--gold);
}

.hero h1 {
    color: var(--white);
    font-size: 76px;
    font-weight: 500;
    line-height: 1.12;
}

.hero-copy {
    max-width: 720px;
    margin-top: 30px;
    color: rgba(255, 255, 255, 0.76);
    font-size: 19px;
    font-weight: 300;
    line-height: 1.9;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 42px;
}

.hero-metrics {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    max-width: 790px;
    margin-top: 70px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.metric {
    display: flex;
    min-width: 0;
    flex-direction: column;
    padding: 24px 28px 0 0;
}

.metric + .metric {
    padding-left: 30px;
    border-left: 1px solid rgba(255, 255, 255, 0.16);
}

.metric strong {
    display: flex;
    align-items: baseline;
    color: var(--white);
    font-size: 34px;
    font-weight: 500;
    line-height: 1;
    white-space: nowrap;
}

.metric strong small {
    margin-left: 5px;
    color: var(--gold-light);
    font-size: 15px;
    font-weight: 500;
}

.metric > span {
    margin-top: 10px;
    color: rgba(255, 255, 255, 0.58);
    font-size: 12px;
}

.scroll-cue {
    position: absolute;
    z-index: 3;
    bottom: 26px;
    left: 50%;
    display: block;
    width: 30px;
    height: 48px;
    border: 1px solid rgba(255, 255, 255, 0.32);
    border-radius: 20px;
    transform: translateX(-50%);
}

.scroll-cue span {
    position: absolute;
    top: 8px;
    left: 50%;
    width: 2px;
    height: 9px;
    background: var(--gold-light);
    transform: translateX(-50%);
    animation: cue 1.8s ease-in-out infinite;
}

@keyframes cue {
    0%,
    100% {
        opacity: 0.3;
        transform: translate(-50%, 0);
    }
    50% {
        opacity: 1;
        transform: translate(-50%, 12px);
    }
}

.about-section {
    /* background:
        linear-gradient(rgba(47, 125, 246, 0.05) 1px, transparent 1px),
        var(--paper); */
    background-size: 100% 64px;
}

.about-section .section-shell {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
    align-items: center;
    gap: 92px;
}

.about-copy h2 {
    max-width: 660px;
}

.about-copy .section-lead {
    max-width: 660px;
    margin-top: 32px;
}

.about-points {
    max-width: 680px;
    margin-top: 30px;
    border-top: 1px solid var(--line);
}

.about-point {
    display: grid;
    grid-template-columns: 48px 1fr;
    gap: 20px;
    padding: 12px 0;
    border-bottom: 1px solid var(--line);
}

.point-index {
    padding-top: 3px;
    color: var(--gold);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.about-point h3 {
    margin-bottom: 6px;
}

.about-point p {
    color: var(--muted);
    font-size: 15px;
}

.about-vision {
    max-width: 680px;
    margin-top: 32px;
    padding: 22px 0 22px 22px;
    border-left: 2px solid var(--gold);
    color: var(--text);
}

.about-vision span {
    display: block;
    margin-bottom: 9px;
    color: var(--gold);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.16em;
}

.about-vision p {
    margin: 0;
    font-size: 18px;
    font-weight: 500;
    line-height: 1.7;
}

.about-visual {
    position: relative;
    margin: 0;
}

.about-visual::before {
    position: absolute;
    top: -18px;
    right: -18px;
    z-index: 0;
    width: 58%;
    height: 42%;
    border-top: 1px solid var(--gold);
    border-right: 1px solid var(--gold);
    content: "";
}

.about-visual img {
    position: relative;
    z-index: 1;
    width: 100%;
    /* aspect-ratio: 4 / 5; */
    object-fit: cover;
    box-shadow: var(--shadow);
}

.about-visual figcaption {
    position: absolute;
    z-index: 2;
    right: 26px;
    bottom: 24px;
    left: 26px;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 18px;
    padding-top: 22px;
    border-top: 1px solid rgba(255, 255, 255, 0.36);
    color: var(--white);
}

.about-visual figcaption::after {
    position: absolute;
    top: -1px;
    left: 0;
    width: 46px;
    height: 1px;
    background: var(--gold-light);
    content: "";
}

.about-visual figcaption span {
    color: rgba(255, 255, 255, 0.7);
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.16em;
}

.about-visual figcaption strong {
    font-size: 16px;
    font-weight: 500;
}

.technology-section {
    background: var(--ink-soft);
    color: var(--white);
}

.technology-section h2 {
    color: var(--white);
}

.technology-section .section-lead {
    color: var(--muted-light);
}

.technology-section .section-heading {
    max-width: 760px;
}

.technology-section .section-heading .section-lead {
    margin-top: 24px;
}

.technology-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    margin-top: 64px;
}

.technology-card {
    position: relative;
    min-height: 400px;
    overflow: hidden;
    padding: 52px 48px;
    border: 1px solid var(--line-light);
    background:
        linear-gradient(145deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.012)),
        rgba(255, 255, 255, 0.015);
    transition:
        border-color 0.35s ease,
        background-color 0.35s ease,
        transform 0.35s ease;
}

.technology-card::after {
    position: absolute;
    right: -70px;
    bottom: -90px;
    width: 220px;
    height: 220px;
    border: 1px solid rgba(47, 125, 246, 0.18);
    border-radius: 50%;
    content: "";
}

.technology-card:hover {
    border-color: rgba(135, 189, 255, 0.46);
    background:
        linear-gradient(145deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.02)),
        rgba(255, 255, 255, 0.02);
    transform: translateY(-5px);
}

.technology-number {
    position: absolute;
    top: 30px;
    right: 34px;
    color: rgba(255, 255, 255, 0.14);
    font-size: 42px;
    font-weight: 500;
    line-height: 1;
}

.technology-icon {
    display: grid;
    width: 68px;
    height: 68px;
    margin-bottom: 30px;
    place-items: center;
    border: 1px solid rgba(135, 189, 255, 0.38);
    color: var(--gold-light);
}

.technology-icon svg {
    width: 38px;
    height: 38px;
}

.technology-card h3 {
    max-width: 460px;
    color: var(--white);
    font-size: 25px;
}

.technology-card p {
    max-width: 520px;
    margin-top: 20px;
    color: var(--muted-light);
    font-size: 16px;
}

.capability-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 30px;
    padding: 0;
    list-style: none;
}

.capability-list li {
    padding: 8px 12px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    color: var(--gold-light);
    font-size: 12px;
}

.product-section {
    background: var(--paper);
}

.product-shell {
    display: grid;
    grid-template-columns: minmax(380px, 0.9fr) minmax(0, 1.1fr);
    align-items: center;
    gap: 72px;
}

.section-heading {
    max-width: 780px;
}

.section-heading.centered {
    margin-right: auto;
    margin-left: auto;
    text-align: center;
}

.section-heading .section-lead {
    margin-top: 24px;
}

.product-section .section-heading {
    max-width: none;
    margin: 0;
    text-align: left;
}

.product-points {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    margin-top: 30px;
    padding: 0;
    border-top: 1px solid var(--line);
    list-style: none;
}

.product-points li {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 18px;
    padding: 16px 0;
    border-bottom: 1px solid var(--line);
}

.product-points strong {
    color: var(--ink);
    font-size: 15px;
    font-weight: 600;
}

.product-points span {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.75;
}

.carousel {
    position: relative;
    margin: 0;
}

.carousel-viewport {
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(23, 84, 158, 0.15);
    background: var(--ink);
    box-shadow: var(--shadow);
}

.carousel-track {
    display: flex;
    width: 100%;
    transition: transform 0.65s cubic-bezier(0.22, 1, 0.36, 1);
}

.carousel-slide {
    position: relative;
    min-width: 100%;
    margin: 0;
    aspect-ratio: 4 / 3;
    overflow: hidden;
}

.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.carousel-slide.is-active img {
    transform: scale(1.015);
}

.carousel-arrow {
    position: absolute;
    z-index: 3;
    top: 50%;
    display: grid;
    width: 48px;
    height: 48px;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: 50%;
    background: rgba(10, 42, 88, 0.72);
    color: var(--white);
    cursor: pointer;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    transform: translateY(-50%);
    transition:
        border-color 0.25s ease,
        background-color 0.25s ease,
        transform 0.25s ease;
}

.carousel-arrow:hover {
    border-color: var(--gold-light);
    background: rgba(10, 42, 88, 0.9);
}

.carousel-arrow svg {
    width: 20px;
    height: 20px;
}

.carousel-prev {
    left: -24px;
}

.carousel-next {
    right: -24px;
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 26px;
}

.carousel-dot {
    width: 8px;
    height: 8px;
    padding: 0;
    border: 1px solid rgba(10, 42, 88, 0.34);
    border-radius: 50%;
    background: transparent;
    cursor: pointer;
    transition:
        width 0.3s ease,
        border-radius 0.3s ease,
        background-color 0.3s ease;
}

.carousel-dot.is-active {
    width: 24px;
    border-color: var(--gold);
    border-radius: 8px;
    background: var(--gold);
}

.carousel-caption {
    margin-top: 18px;
    color: var(--muted);
    font-size: 13px;
    text-align: center;
}

.product-cases {
    display: grid;
    grid-column: 1 / -1;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 12px;
    margin-top: 10px;
}

.product-cases article {
    position: relative;
    min-height: 156px;
    padding: 22px 18px;
    border: 1px solid var(--line);
    background: var(--white);
    transition:
        border-color 0.3s ease,
        transform 0.3s ease,
        box-shadow 0.3s ease;
}

.product-cases article:hover {
    border-color: rgba(47, 125, 246, 0.48);
    box-shadow: 0 18px 40px rgba(10, 42, 88, 0.09);
    transform: translateY(-4px);
}

.product-cases article span {
    display: block;
    margin-bottom: 26px;
    color: var(--gold);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.12em;
}

.product-cases article h3 {
    margin-bottom: 10px;
    font-size: 17px;
    line-height: 1.4;
}

.product-cases article p {
    color: var(--muted);
    font-size: 13px;
    line-height: 1.65;
}

.app-section {
    overflow: hidden;
    background: var(--ink-soft);
    color: var(--white);
}

.app-atmosphere {
    position: absolute;
    top: -24%;
    right: -12%;
    width: 66%;
    height: 148%;
    background:
        repeating-linear-gradient(
            90deg,
            transparent 0,
            transparent 89px,
            rgba(111, 177, 255, 0.1) 90px
        ),
        repeating-linear-gradient(
            0deg,
            transparent 0,
            transparent 89px,
            rgba(111, 177, 255, 0.06) 90px
        );
    opacity: 0.65;
    transform: rotate(-7deg);
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 28%);
    mask-image: linear-gradient(90deg, transparent, #000 28%);
}

.app-shell {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(420px, 0.95fr);
    align-items: center;
    gap: 72px;
}

.app-copy {
    position: relative;
    z-index: 2;
}

.app-copy h2 {
    color: var(--white);
}

.app-copy .section-lead {
    max-width: 660px;
    margin-top: 28px;
    color: var(--muted-light);
}

.app-features {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 30px;
}

.app-features span {
    padding: 8px 12px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: rgba(255, 255, 255, 0.72);
    font-size: 12px;
}

.app-download {
    margin-top: 38px;
}

.app-image {
    position: relative;
    z-index: 2;
    width: 100%;
    margin: 0;
}

.app-image img {
    width: 100%;
    height: auto;
    border: 1px solid rgba(135, 189, 255, 0.28);
    box-shadow: 0 32px 80px rgba(0, 0, 0, 0.32);
}

.phone-visual {
    position: relative;
    z-index: 2;
    width: 340px;
    margin: 0 auto;
}

.phone-frame {
    position: relative;
    z-index: 2;
    width: 306px;
    height: 632px;
    padding: 9px;
    border: 1px solid rgba(255, 255, 255, 0.24);
    border-radius: 42px;
    background: #eef1f2;
    box-shadow:
        0 40px 90px rgba(0, 0, 0, 0.45),
        inset 0 0 0 2px rgba(10, 42, 88, 0.7);
}

.phone-speaker {
    position: absolute;
    z-index: 4;
    top: 15px;
    left: 50%;
    width: 72px;
    height: 20px;
    border-radius: 14px;
    background: #0a2a58;
    transform: translateX(-50%);
}

.phone-screen {
    position: relative;
    display: flex;
    height: 100%;
    flex-direction: column;
    overflow: hidden;
    padding: 47px 20px 20px;
    border-radius: 33px;
    background:
        radial-gradient(circle at 85% 12%, rgba(88, 183, 255, 0.2), transparent 33%),
        linear-gradient(160deg, #123b76 0%, #0a2a58 60%, #071d40 100%);
    color: var(--white);
}

.screen-status {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: rgba(255, 255, 255, 0.66);
    font-size: 9px;
}

.screen-signal {
    display: flex;
    align-items: flex-end;
    gap: 2px;
}

.screen-signal i {
    display: block;
    width: 2px;
    background: rgba(255, 255, 255, 0.72);
}

.screen-signal i:nth-child(1) {
    height: 3px;
}

.screen-signal i:nth-child(2) {
    height: 5px;
}

.screen-signal i:nth-child(3) {
    height: 7px;
}

.screen-signal i:nth-child(4) {
    height: 9px;
}

.screen-greeting {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 23px;
}

.screen-greeting span {
    color: rgba(255, 255, 255, 0.66);
    font-size: 10px;
}

.screen-greeting strong {
    color: var(--gold-light);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.08em;
}

.sleep-score {
    position: relative;
    display: flex;
    width: 142px;
    height: 142px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 26px auto 20px;
    border: 1px solid rgba(88, 183, 255, 0.5);
    border-radius: 50%;
    background: rgba(88, 183, 255, 0.1);
}

.sleep-score::before {
    position: absolute;
    inset: 8px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    content: "";
}

.sleep-score > span {
    color: rgba(255, 255, 255, 0.58);
    font-size: 9px;
}

.sleep-score strong {
    font-size: 40px;
    font-weight: 500;
    line-height: 1.15;
}

.sleep-score small {
    color: var(--gold-light);
    font-size: 9px;
}

.sleep-chart {
    display: flex;
    height: 74px;
    align-items: flex-end;
    gap: 5px;
    margin-top: 4px;
    padding: 0 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.sleep-chart span {
    flex: 1;
    height: var(--height);
    background: linear-gradient(180deg, var(--gold-light), rgba(88, 183, 255, 0.35));
    opacity: 0.86;
}

.sleep-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-top: 14px;
}

.sleep-stats div {
    display: flex;
    min-width: 0;
    flex-direction: column;
}

.sleep-stats span {
    color: rgba(255, 255, 255, 0.48);
    font-size: 8px;
}

.sleep-stats strong {
    margin-top: 4px;
    font-size: 10px;
    font-weight: 500;
}

.screen-control {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    padding: 12px 14px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.05);
}

.screen-control span {
    color: rgba(255, 255, 255, 0.72);
    font-size: 9px;
}

.screen-control i {
    position: relative;
    display: block;
    width: 26px;
    height: 14px;
    border-radius: 8px;
    background: var(--teal);
}

.screen-control i::after {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--white);
    content: "";
}

.phone-shadow {
    position: absolute;
    z-index: 1;
    right: 3px;
    bottom: -12px;
    left: 3px;
    height: 38px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.38);
    filter: blur(18px);
}

.radar-section {
    background:
        linear-gradient(rgba(23, 84, 158, 0.06) 1px, transparent 1px),
        var(--ivory);
    background-size: 100% 72px;
}

.radar-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    margin-top: 62px;
}

.radar-card {
    min-height: 245px;
    padding: 32px 26px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.72);
    transition:
        border-color 0.3s ease,
        background-color 0.3s ease,
        transform 0.3s ease,
        box-shadow 0.3s ease;
}

.radar-card:hover {
    border-color: rgba(47, 125, 246, 0.62);
    background: var(--paper);
    box-shadow: 0 20px 45px rgba(10, 42, 88, 0.1);
    transform: translateY(-5px);
}

.radar-icon {
    display: grid;
    width: 44px;
    height: 44px;
    margin-bottom: 28px;
    place-items: center;
    border: 1px solid rgba(47, 125, 246, 0.36);
    color: var(--gold);
}

.radar-icon svg {
    width: 23px;
    height: 23px;
}

.radar-card h3 {
    margin-bottom: 12px;
    font-size: 20px;
}

.radar-card p {
    color: var(--muted);
    font-size: 14px;
}

.radar-conclusion {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 34px;
    margin-top: 42px;
    padding-top: 28px;
    border-top: 1px solid var(--line);
}

.radar-conclusion span {
    margin-right: 8px;
    color: var(--gold);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.16em;
}

.radar-conclusion p {
    position: relative;
    color: var(--ink);
    font-size: 17px;
    font-weight: 500;
}

.radar-conclusion p:not(:first-of-type)::before {
    position: absolute;
    top: 50%;
    left: -17px;
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: var(--gold);
    content: "";
}

.company-section {
    background: var(--ivory);
}

.company-section .section-heading {
    margin-right: auto;
    margin-left: auto;
    text-align: center;
}

.company-section .section-heading .section-lead {
    max-width: 720px;
    margin-right: auto;
    margin-left: auto;
}

.company-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.94fr) minmax(0, 1.06fr);
    gap: 88px;
    margin-top: 70px;
}

.timeline {
    position: relative;
    padding-left: 32px;
    border-left: 1px solid rgba(23, 84, 158, 0.28);
}

.timeline::before {
    position: absolute;
    top: 0;
    left: -2px;
    width: 3px;
    height: 46px;
    background: var(--gold);
    content: "";
}

.timeline-item {
    position: relative;
    padding-bottom: 34px;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-item::before {
    position: absolute;
    top: 7px;
    left: -39px;
    width: 9px;
    height: 9px;
    border: 2px solid var(--paper);
    border-radius: 50%;
    background: var(--gold);
    box-shadow: 0 0 0 1px var(--gold);
    content: "";
}

.timeline-year {
    display: block;
    margin-bottom: 7px;
    color: var(--gold);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.12em;
}

.timeline-item h3 {
    margin-bottom: 9px;
    font-size: 21px;
}

.timeline-item p {
    color: var(--muted);
    font-size: 15px;
}

.culture-panel {
    padding-left: 54px;
    border-left: 1px solid var(--line);
}

.culture-kicker {
    margin-bottom: 16px;
    color: var(--gold);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.16em;
}

.culture-panel > h3 {
    font-size: 28px;
    line-height: 1.5;
}

.culture-panel blockquote {
    margin: 26px 0;
    padding-left: 18px;
    border-left: 2px solid var(--gold);
    color: var(--muted);
    font-size: 15px;
    line-height: 1.8;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.values-grid > div {
    min-height: 146px;
    padding: 22px 20px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.7);
}

.values-grid strong {
    display: block;
    margin-bottom: 9px;
    color: var(--ink);
    font-size: 18px;
    font-weight: 600;
}

.values-grid p {
    color: var(--muted);
    font-size: 13px;
    line-height: 1.7;
}

.team-note {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-top: 18px;
    padding: 18px 20px;
    background: var(--ink);
    color: var(--white);
}

.team-note strong {
    color: var(--gold-light);
    font-size: 30px;
    font-weight: 500;
    line-height: 1;
}

.team-note span {
    color: var(--muted-light);
    font-size: 13px;
    line-height: 1.7;
}

.contact-section {
    overflow: hidden;
    background: #0b2b5c;
    color: var(--white);
}

.contact-ring {
    position: absolute;
    top: 50%;
    left: 48%;
    width: 560px;
    height: 560px;
    border: 1px solid rgba(135, 189, 255, 0.14);
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

.contact-ring::before,
.contact-ring::after {
    position: absolute;
    inset: 54px;
    border: 1px solid rgba(135, 189, 255, 0.1);
    border-radius: 50%;
    content: "";
}

.contact-ring::after {
    inset: 112px;
}

.contact-shell {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(360px, 0.85fr);
    align-items: center;
    gap: 100px;
}

.contact-copy h2 {
    color: var(--white);
}

.contact-copy p {
    max-width: 580px;
    margin-top: 26px;
    color: var(--muted-light);
}

.contact-panel {
    padding: 44px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.035);
}

.contact-label {
    display: block;
    margin-bottom: 14px;
    color: var(--gold-light);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.16em;
}

.contact-panel > a {
    /* display: inline-block; */
    margin-bottom: 18px;
    color: var(--white);
    font-size: 24px;
    line-height: 1.45;
    overflow-wrap: anywhere;
}

.contact-location {
    display: block;
    margin-bottom: 28px;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--muted-light);
    font-size: 14px;
}

.contact-address {
    display: block;
    max-width: 420px;
    margin: -14px 0 28px;
    color: rgba(255, 255, 255, 0.55);
    font-size: 12px;
    line-height: 1.7;
}

.button-contact {
    background: var(--gold);
    color: var(--white);
}

.button-contact:hover {
    background: #1767d5;
}

.site-footer {
    background: #071d40;
    color: rgba(255, 255, 255, 0.66);
}

.footer-shell {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 36px;
    width: min(1180px, calc(100% - 56px));
    min-height: 130px;
    margin: 0 auto;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-brand .brand-mark {
    flex: 0 0 auto;
    border-color: rgba(255, 255, 255, 0.22);
}

.footer-brand > div {
    display: flex;
    flex-direction: column;
}

.footer-brand strong {
    color: var(--white);
    font-size: 13px;
    font-weight: 500;
}

.footer-brand span:not(.brand-mark) {
    margin-top: 4px;
    color: rgba(255, 255, 255, 0.4);
    font-size: 8px;
    letter-spacing: 0.15em;
}

.footer-nav {
    display: flex;
    justify-content: center;
    gap: 26px;
}

.footer-nav a {
    color: rgba(255, 255, 255, 0.56);
    font-size: 12px;
    transition: color 0.25s ease;
}

.footer-nav a:hover {
    color: var(--gold-light);
}

.footer-shell > p {
    justify-self: end;
    font-size: 11px;
    text-align: right;
}

.back-to-top {
    position: fixed;
    z-index: 800;
    right: 24px;
    bottom: 24px;
    display: grid;
    width: 46px;
    height: 46px;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 50%;
    background: rgba(10, 42, 88, 0.86);
    color: var(--white);
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transform: translateY(10px);
    transition:
        opacity 0.3s ease,
        transform 0.3s ease,
        background-color 0.3s ease;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.back-to-top:hover {
    background: rgba(10, 42, 88, 1);
}

.back-to-top.is-visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.back-to-top svg {
    width: 20px;
    height: 20px;
}

@media (max-width: 1080px) {
    .section {
        padding: 104px 0;
    }

    h2 {
        font-size: 48px;
    }

    .hero h1 {
        font-size: 64px;
    }

    .about-section .section-shell {
        gap: 64px;
    }

    .technology-card {
        padding: 44px 36px;
    }

    .technology-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .technology-card:last-child {
        grid-column: span 2;
    }

    .app-shell {
        gap: 72px;
    }

    .radar-card {
        padding: 28px 20px;
    }

    .contact-shell {
        gap: 60px;
    }
}

@media (max-width: 1040px) {
    :root {
        --header-height: 70px;
    }

    .nav-wrap {
        width: calc(100% - 32px);
    }

    .brand-mark {
        width: 38px;
        height: 38px;
        font-size: 18px;
    }

    .product-shell {
        gap: 44px;
    }

    .product-cases {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .menu-toggle {
        display: block;
    }

    .primary-nav {
        position: fixed;
        top: var(--header-height);
        right: 0;
        left: 0;
        display: block;
        max-height: 0;
        overflow: hidden;
        padding: 0 16px;
        background: rgba(10, 42, 88, 0.98);
        transition:
            max-height 0.45s ease,
            padding 0.45s ease;
        -webkit-backdrop-filter: blur(18px);
        backdrop-filter: blur(18px);
    }

    .menu-open .primary-nav {
        max-height: calc(100vh - var(--header-height));
        padding-top: 18px;
        padding-bottom: 28px;
    }

    .primary-nav ul {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        border-top: 1px solid rgba(255, 255, 255, 0.12);
    }

    .primary-nav li {
        border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    }

    .nav-link {
        padding: 15px 4px;
    }

    .nav-link::after {
        display: none;
    }

    .nav-email {
        margin-top: 18px;
    }

    .hero {
        min-height: 720px;
        padding: 110px 0 116px;
    }

    .hero h1 {
        font-size: 56px;
    }

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

    .hero-metrics {
        margin-top: 54px;
    }

    .about-section .section-shell {
        grid-template-columns: 1fr;
        gap: 64px;
    }

    .about-visual {
        width: min(560px, calc(100% - 20px));
        margin: 0 auto;
    }

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

    .technology-card {
        min-height: 0;
    }

    .technology-card:last-child {
        grid-column: auto;
    }

    .app-shell {
        grid-template-columns: 1fr;
        gap: 70px;
    }

    .app-copy {
        max-width: 680px;
    }

    .phone-visual {
        margin-top: 10px;
    }

    .radar-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .radar-card {
        min-height: 220px;
    }

    .company-grid {
        grid-template-columns: 1fr;
        gap: 56px;
    }

    .culture-panel {
        padding-left: 0;
        border-left: 0;
    }

    .contact-shell {
        grid-template-columns: 1fr;
        gap: 52px;
    }

    .contact-panel {
        max-width: 620px;
    }

    .footer-shell {
        grid-template-columns: 1fr auto;
        padding: 30px 0;
    }

    .footer-nav {
        justify-self: end;
    }

    .footer-shell > p {
        grid-column: 1 / -1;
        justify-self: start;
        text-align: left;
    }
}

@media (max-width: 880px) {
    .product-shell {
        grid-template-columns: 1fr;
        gap: 42px;
    }

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

    .product-cases {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .section {
        padding: 78px 0;
    }

    .section-shell,
    .product-shell {
        width: calc(100% - 32px);
    }

    h2 {
        font-size: 38px;
    }

    h3 {
        font-size: 20px;
    }

    .section-lead {
        font-size: 16px;
        line-height: 1.85;
    }

    .hero {
        min-height: 700px;
        padding: 98px 0 100px;
    }

    .hero-content {
        width: calc(100% - 32px);
    }

    .hero h1 {
        font-size: 43px;
    }

    .hero-copy {
        margin-top: 24px;
        font-size: 16px;
    }

    .hero-actions {
        margin-top: 32px;
    }

    .button {
        min-height: 48px;
        padding: 0 18px;
    }

    .hero-metrics {
        margin-top: 48px;
    }

    .metric {
        padding-top: 18px;
        padding-right: 14px;
    }

    .metric + .metric {
        padding-left: 14px;
    }

    .metric strong {
        font-size: 25px;
    }

    .metric strong small {
        font-size: 12px;
    }

    .metric > span {
        font-size: 10px;
    }

    .about-section .section-shell {
        gap: 52px;
    }

    .about-copy h2,
    .section-heading h2 {
        font-size: 37px;
    }

    .about-copy .section-lead {
        margin-top: 24px;
    }

    .about-point {
        grid-template-columns: 34px 1fr;
        gap: 12px;
        padding: 20px 0;
    }

    .about-point p {
        font-size: 14px;
    }

    .about-visual {
        width: calc(100% - 12px);
    }

    .about-visual::before {
        top: -10px;
        right: -10px;
    }

    .about-visual figcaption {
        right: 18px;
        bottom: 18px;
        left: 18px;
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }

    .technology-grid {
        margin-top: 44px;
    }

    .technology-card {
        padding: 38px 26px;
    }

    .technology-number {
        top: 24px;
        right: 24px;
        font-size: 34px;
    }

    .technology-icon {
        width: 58px;
        height: 58px;
        margin-bottom: 24px;
    }

    .technology-card h3 {
        font-size: 22px;
    }

    .technology-card p {
        font-size: 15px;
    }

    .carousel {
        margin-top: 0;
    }

    .product-points li {
        grid-template-columns: 1fr;
        gap: 6px;
        padding: 15px 0;
    }

    .product-cases {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .product-cases article {
        min-height: 0;
        padding: 20px;
    }

    .product-cases article span {
        margin-bottom: 16px;
    }

    .carousel-slide {
        aspect-ratio: 1 / 1;
    }

    .carousel-prev {
        left: 8px;
    }

    .carousel-next {
        right: 8px;
    }

    .carousel-arrow {
        width: 42px;
        height: 42px;
    }

    .app-shell {
        gap: 58px;
    }

    .app-copy h2 {
        font-size: 40px;
    }

    .phone-visual {
        width: 300px;
    }

    .phone-frame {
        width: 282px;
        height: 590px;
    }

    .phone-screen {
        padding: 45px 17px 17px;
        border-radius: 30px;
    }

    .sleep-score {
        width: 128px;
        height: 128px;
        margin-top: 20px;
    }

    .sleep-score strong {
        font-size: 36px;
    }

    .radar-grid {
        grid-template-columns: 1fr;
        gap: 12px;
        margin-top: 42px;
    }

    .radar-card {
        display: grid;
        min-height: 0;
        grid-template-columns: 52px 1fr;
        column-gap: 18px;
        padding: 24px 22px;
    }

    .radar-icon {
        grid-row: 1 / 3;
        margin: 0;
    }

    .radar-card h3 {
        margin-bottom: 6px;
    }

    .radar-conclusion {
        gap: 16px 26px;
    }

    .radar-conclusion span {
        width: 100%;
        margin: 0 0 6px;
    }

    .radar-conclusion p:not(:first-of-type)::before {
        left: -13px;
    }

    .company-grid {
        margin-top: 46px;
    }

    .timeline {
        padding-left: 24px;
    }

    .timeline-item::before {
        left: -30px;
    }

    .culture-panel > h3 {
        font-size: 23px;
    }

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

    .values-grid > div {
        min-height: 0;
    }

    .team-note {
        align-items: flex-start;
        flex-direction: column;
        gap: 10px;
    }

    .contact-panel {
        padding: 30px 24px;
    }

    .contact-panel > a {
        font-size: 20px;
    }

    .footer-shell {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .footer-nav {
        flex-wrap: wrap;
        justify-self: start;
        gap: 12px 20px;
    }

    .footer-shell > p {
        grid-column: auto;
        justify-self: start;
    }

    .back-to-top {
        right: 16px;
        bottom: 16px;
        width: 42px;
        height: 42px;
    }
}

@media (max-width: 420px) {
    .hero {
        min-height: 680px;
    }

    .hero h1 {
        font-size: 38px;
    }

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

    .hero-actions .button {
        width: 100%;
    }

    .hero-metrics {
        gap: 0;
    }

    .metric {
        padding-right: 10px;
    }

    .metric + .metric {
        padding-left: 10px;
    }

    .metric strong {
        font-size: 22px;
    }

    .metric > span {
        line-height: 1.5;
    }
}

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

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}