:root {
    --color-base: #eef6fb;
    --color-surface: #f9fcfe;
    --color-surface-strong: #e3f0ea;
    --color-text: #173047;
    --color-muted: #537085;
    --color-line: rgba(23, 48, 71, 0.12);
    --color-accent: #ef8b2c;
    --color-accent-dark: #c96b14;
    --color-navy: #173b58;
    --shadow-soft: 0 20px 60px rgba(28, 82, 118, 0.14);
    --shadow-card: 0 18px 40px rgba(23, 48, 71, 0.08);
    --radius-large: 32px;
    --radius-medium: 20px;
    --radius-small: 12px;
    --container-width: 1120px;
    --header-height: 96px;
    --transition: 0.3s ease;
}

html,
body,
div,
span,
applet,
object,
iframe,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
a,
abbr,
acronym,
address,
big,
cite,
code,
del,
dfn,
em,
img,
ins,
kbd,
q,
s,
samp,
small,
strike,
strong,
sub,
sup,
tt,
var,
b,
u,
i,
center,
dl,
dt,
dd,
ol,
ul,
li,
fieldset,
form,
label,
legend,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
article,
aside,
canvas,
details,
embed,
figure,
figcaption,
footer,
header,
hgroup,
menu,
nav,
output,
ruby,
section,
summary,
time,
mark,
audio,
video {
    margin: 0;
    padding: 0;
    border: 0;
    font: inherit;
    vertical-align: baseline;
}

article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section {
    display: block;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-height) + 24px);
}

body {
    color: var(--color-text);
    background:
        radial-gradient(circle at top right, rgba(100, 176, 218, 0.2), transparent 24%),
        linear-gradient(180deg, #f4fbff 0%, #edf7f2 46%, #f8fcff 100%);
    font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
    line-height: 1.7;
}

ol,
ul {
    list-style: none;
}

blockquote,
q {
    quotes: none;
}

blockquote::before,
blockquote::after,
q::before,
q::after {
    content: "";
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}

img {
    display: block;
    width: 100%;
    height: auto;
}

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

button,
input,
select,
textarea {
    font: inherit;
    color: inherit;
}

.container {
    width: min(100% - 48px, var(--container-width));
    margin: 0 auto;
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 10;
    backdrop-filter: blur(18px);
    background: #fff;
    border-bottom: 1px solid rgba(23, 48, 71, 0.08);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.site-logo {
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
    max-width: 220px;
}

.site-logo img {
    width: 100%;
    height: auto;
    max-height: 60px;
    object-fit: contain;
}

.global-nav__list {
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.global-nav__item a {
    position: relative;
    font-size: 0.95rem;
    color: var(--color-muted);
}

.global-nav__item a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 100%;
    height: 1px;
    background: var(--color-accent);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition);
}

.global-nav__item a:hover::after,
.global-nav__item a:focus-visible::after {
    transform: scaleX(1);
    transform-origin: left;
}

.hero {
    position: relative;
    background:
        linear-gradient(90deg, rgba(18, 55, 84, 0.74) 0%, rgba(29, 86, 122, 0.44) 38%, rgba(72, 141, 113, 0.18) 100%),
        url("img/hero.png") center center / cover no-repeat;
}

.hero__layout {
    display: grid;
    min-height: 600px;
    align-items: center;
}

.hero__content {
    position: relative;
    z-index: 1;
    width: min(100%, 560px);
    margin-right: auto;
    text-align: left;
}

.hero__lead,
.section-heading__sub {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
    color: var(--color-accent);
    font-size: 0.84rem;
    font-weight: 700;
    letter-spacing: 0.16em;
}

.hero__lead::before,
.section-heading__sub::before {
    content: "";
    width: 42px;
    height: 1px;
    background: currentColor;
}

.hero__title,
.section-heading__title {
    font-family: "Times New Roman", "Hiragino Mincho ProN", serif;
    line-height: 1.15;
}

.hero__title {
    max-width: 50em;
    font-size: clamp(2.8rem, 4vw, 3rem);
    letter-spacing: 0.03em;
    color: #fff;
}

.hero__description {
    max-width: 34rem;
    margin-top: 24px;
    font-size: 1.04rem;
    color: rgba(248, 244, 237, 0.92);
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 0 24px;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 700;
    transition:
        transform var(--transition),
        background-color var(--transition),
        color var(--transition),
        border-color var(--transition);
}

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

.button--primary {
    color: #fff;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    box-shadow: 0 16px 30px rgba(143, 63, 29, 0.22);
}

.button--secondary {
    color: var(--color-navy);
    background: rgba(249, 252, 254, 0.82);
    border-color: rgba(23, 59, 88, 0.16);
}

.hero__visual {
    position: relative;
    min-height: 580px;
}

.hero__image {
    overflow: hidden;
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-soft);
}

.hero__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero__image--main {
    width: 82%;
    height: 100%;
    margin-left: auto;
}

.hero__image--sub {
    position: absolute;
    left: 0;
    bottom: 28px;
    width: 44%;
    border: 8px solid rgba(255, 253, 248, 0.95);
}

.section {
    padding: 96px 0;
}

.section-heading {
    margin-bottom: 40px;
}

.section-heading__title {
    font-size: clamp(2rem, 4vw, 3.4rem);
}

.about__content,
.vision__content {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.9fr);
    gap: 40px;
    align-items: start;
}

.about__text-block,
.vision__text-block {
    display: grid;
    gap: 28px;
}

.about__text,
.vision__text,
.contact__text,
.service-card__description {
    color: var(--color-muted);
}

.company-info {
    display: grid;
    gap: 16px;
    padding: 28px;
    background: rgba(249, 252, 254, 0.82);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-medium);
    box-shadow: var(--shadow-card);
}

.company-info__row {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 12px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-line);
}

.company-info__row:last-child {
    padding-bottom: 0;
    border-bottom: 0;
}

.company-info__label {
    color: var(--color-muted);
    font-weight: 700;
}

.about__image,
.vision__image {
    overflow: hidden;
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-soft);
}

.about__image img,
.vision__image img,
.service-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.services {
    position: relative;
}

.service-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
}

.service-card {
    display: grid;
    overflow: hidden;
    background: rgba(249, 252, 254, 0.9);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-card);
}

.service-card__image {
    aspect-ratio: 16 / 10;
}

.service-card__body {
    display: grid;
    gap: 16px;
    padding: 28px;
}

.service-card__number {
    color: var(--color-accent);
    font-family: "Times New Roman", serif;
    font-size: 1.5rem;
    letter-spacing: 0.08em;
}

.service-card__title {
    font-size: 1.45rem;
    line-height: 1.4;
}

.vision {
    background:
        linear-gradient(180deg, rgba(22, 66, 99, 0.96), rgba(18, 52, 79, 0.98)),
        linear-gradient(135deg, rgba(239, 139, 44, 0.14), transparent);
    color: #f3fbff;
}

.vision .section-heading__sub,
.vision .section-heading__title,
.vision .vision__text,
.vision .vision-points__item {
    color: inherit;
}

.vision .section-heading__sub {
    color: #ffd1a4;
}

.vision__gallery {
    position: relative;
    min-height: 460px;
}

.vision__image--large {
    width: 88%;
    height: 100%;
}

.vision__image--small {
    position: absolute;
    right: 0;
    bottom: -28px;
    width: 42%;
    border: 8px solid rgba(248, 244, 237, 0.92);
}

.vision-points {
    display: grid;
    gap: 14px;
}

.vision-points__item {
    position: relative;
    padding-left: 24px;
}

.vision-points__item::before {
    content: "";
    position: absolute;
    top: 11px;
    left: 0;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ffbf7b;
}

.contact {
    padding-bottom: 120px;
}

.contact__content {
    display: grid;
    justify-items: start;
    gap: 24px;
    padding: 40px;
    background: rgba(249, 252, 254, 0.9);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-card);
}

.site-footer {
    padding: 28px 0 40px;
    border-top: 1px solid rgba(23, 48, 71, 0.08);
}

.site-footer__copyright {
    color: var(--color-muted);
    font-size: 0.92rem;
}

@media (max-width: 960px) {
    :root {
        --header-height: 88px;
    }

    .about__content,
    .vision__content,
    .service-list {
        grid-template-columns: 1fr;
    }

    .vision__gallery {
        min-height: auto;
    }

    .vision__image--large {
        width: 100%;
    }

    .vision__image--small {
        position: static;
        width: min(72%, 320px);
        margin-top: 20px;
    }

    .hero {
        padding: calc(var(--header-height) + 72px) 0 96px;
        background-position: 68% center;
    }

    .hero__layout {
        min-height: 520px;
    }
}

@media (max-width: 720px) {
    :root {
        --header-height: 132px;
    }

    .container {
        width: min(100% - 32px, var(--container-width));
    }

    .site-header__inner {
        align-items: flex-start;
        flex-direction: column;
    }

    .site-logo {
        max-width: 180px;
    }

    .global-nav__list {
        gap: 14px 18px;
    }

    .hero {
        padding: calc(var(--header-height) + 48px) 0 72px;
        background-position: 74% center;
    }

    .hero__layout {
        min-height: 420px;
    }

    .section {
        padding: 72px 0;
    }

    .company-info__row {
        grid-template-columns: 1fr;
        gap: 6px;
    }

    .contact__content,
    .service-card__body,
    .company-info {
        padding: 24px;
    }

}