@charset "UTF-8";

/*=====================================
Base
======================================*/

.column_page img {
	max-width: 100%;
}

.column_page a {
	transition: .3s ease;
}


/*=====================================
Hero
======================================*/

header {
	background: rgba(59, 96, 81);
}

#column_kv {
	padding: 120px 0 90px;
	background: #F5F8F6;
}

.column_kv_wrap {
	display: grid;
	grid-template-columns:
		minmax(0, 1fr) 500px;
	gap: 80px;
	align-items: center;
}

.column_kv_text {
	padding-bottom: 5px;
}

.column_subtitle {
	color: #2E6B4E;
	font-size: 1.4rem;
	font-weight: 700;
	letter-spacing: .08em;
	margin-bottom: 20px;
	line-height: 1.7;
}

.column_title {
	color: #1F4B3A;
	font-size: 5.2rem;
	margin-bottom: 35px;
	line-height: 1.2;
	letter-spacing: .02em;
	margin: 0 0 35px;
}

.column_lead {
	line-height: 2;
}

/* コラムKV画像の境界をぼかす */
.column_kv_image {
	position: relative;
	overflow: hidden;
	-webkit-mask-image:
		linear-gradient(to right,
			transparent 0%,
			black 15%,
			black 85%,
			transparent 100%),
		linear-gradient(to bottom,
			transparent 0%,
			black 15%,
			black 85%,
			transparent 100%);
	-webkit-mask-composite: source-in;
	mask-image:
		linear-gradient(to right,
			transparent 0%,
			black 15%,
			black 85%,
			transparent 100%),
		linear-gradient(to bottom,
			transparent 0%,
			black 15%,
			black 85%,
			transparent 100%);
	mask-composite: intersect;
	opacity: 0.5;
}

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


/*=====================================
Breadcrumb
======================================*/

#breadcrumb {
	padding: 30px 0;
	background: #fff;
}

.breadcrumb_list {
	display: flex;
	gap: 12px;
	align-items: center;
	font-size: 1.3rem;
}

.breadcrumb_list li:not(:last-child)::after {
	content: ">";
	margin-left: 12px;
	color: #999;
}

.breadcrumb_list a {
	color: #2E6B4E;
}

.breadcrumb_list a:hover {
	opacity: .7;
}

/*=====================================
Common Section
======================================*/

.column_section_label {
	margin: 0 0 10px;
	color: #2E6B4E;
	font-size: 1.1rem;
	font-weight: 700;
	letter-spacing: .15em;
	text-align: center;
}

.column_section_title {
	margin-top: 0;
	color: #1F4B3A;
	font-size: 2.5rem;
	text-align: center;
}

#column_cta {
	padding: 100px 0;
}

.section_lead {
	text-align: center;
	margin-bottom: 60px;
}

/*=====================================
Category
======================================*/


.column_section_heading {
	margin-bottom: 50px;
	text-align: center;
}

.column_section_heading .column_section_title {
	margin-bottom: 10px;
}

.column_section_heading .section_lead {
	margin-bottom: 0;
}

.column_category_filter {
	display: grid;
	grid-template-columns:
		repeat(6, 1fr);
	gap: 20px;
	max-width: 1000px;
	margin: 0 auto;
}

.column_category_button {
	position: relative;
	padding: 24px 0;
	border: 1px solid #D7E8E0;
	border-radius: 12px;
	background: #fff;
	color: #1F4B3A;
	font-size: 1.6rem;
	font-weight: 700;
	cursor: pointer;
	transition:
		background .3s ease,
		color .3s ease,
		transform .3s ease,
		box-shadow .3s ease;
}

.column_category_button span {
	display: block;
	margin-bottom: 8px;
	color: #2E6B4E;
	font-size: 1rem;
	font-weight: 700;
	letter-spacing: .12em;
}

.column_category_button:hover {
	transform: translateY(-5px);
	box-shadow: 0 12px 30px rgba(0, 0, 0, .08);
}

.column_category_button.is_active {
	background: #1F4B3A;
	border-color: #1F4B3A;
	color: #fff;
	box-shadow: 0 10px 25px rgba(31, 75, 58, .18);
}

.column_category_button.is_active span {
	color: #B7D2C5;
}

/*=====================================
Article
======================================*/

#column_article {
	padding: 100px 0 120px;
	background: #fff;
}

.column_article_heading {
	display: flex;
	align-items: flex-end;
	justify-content: space-between;
	margin-bottom: 45px;
}

.column_article_heading .section_title {
	margin-bottom: 0;
}

.column_article_heading .column_section_label {
	text-align: left;
}

/*=====================================
Article Grid
======================================*/

.column_article_grid {
	display: grid;
	grid-template-columns:
		repeat(3, 1fr);
	gap: 40px;
}

.column_article_card {
	overflow: hidden;
	border-radius: 14px;
	transition:
		transform .35s ease,
		box-shadow .35s ease;
}

.column_article_card:hover {
	transform: translateY(-8px);
	box-shadow:
		0 20px 45px rgba(0, 0, 0, .11);
}

.column_article_card.is_hidden {
	display: none;
}

.column_article_link {
	display: block;
	height: 100%;
	text-decoration: none;
}

/*=====================================
Article Image
======================================*/

.column_article_image {
	overflow: hidden;
	aspect-ratio: 16 / 9;
	background: #EEF3F0;
}

.column_article_image img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
	transition: transform .5s ease;
}

.column_article_card:hover .column_article_image img {
	transform: scale(1.05);
}


/*=====================================
Article Body
======================================*/

.column_article_body {
	display: flex;
	flex-direction: column;
	min-height: 275px;
	padding: 28px;
}


.column_article_body h3 {
	color: #1F4B3A;
	font-size: 1.8rem;
	line-height: 1.65;
}

.column_article_body p {
	margin: 17px 0 0;
	color: #555;
	font-size: 1.3rem;
	line-height: 1.9;
}

/*=====================================
No Article
======================================*/

.column_article_empty {
	display: none;
	padding: 70px 20px;
	text-align: center;
	color: #777;
}

.column_article_empty.is_visible {
	display: block;
}


/*=====================================
Web Support
======================================*/

#column_support {
	padding: 100px 0;
	background: #F5F8F6;
}

.column_support_inner {
	display: grid;
	grid-template-columns: .9fr 1.1fr;
	gap: 80px;
	align-items: center;
	max-width: 1000px;
	margin: 0 auto;
}

.column_support_heading {
	padding-right: 30px;
}

.column_support_heading .column_section_label {
	text-align: left;
}

.column_support_heading h2 {

	color: #1F4B3A;
	font-size: 3.2rem;
	line-height: 1.6;
}

.column_support_text {
	padding-left: 45px;
	border-left: 1px solid #D7E8E0;
}

.column_support_text p {
	margin: 0 0 18px;
	font-size: 1.4rem;
	line-height: 2;
}

.column_support_button {
	display: inline-flex;
	align-items: center;
	justify-content: space-between;
	min-width: 300px;
	margin-top: 15px;
	padding: 17px 25px;
	background: #1F4B3A;
	color: #fff;
	font-size: 1.3rem;
	font-weight: 700;
	text-decoration: none;
}

.column_support_button:hover {
	background: #2E6B4E;
	transform: translateY(-3px);
}

.column_support_button span {
	margin-left: 25px;
	font-size: 1.6rem;
}

/*=====================================
CTA
======================================*/

#column_cta {
	background: linear-gradient(135deg, #214F3A, #2E6B4E);
}

.column_cta_box {
	max-width: 850px;
	margin: auto;
	background: white;
	border-radius: 18px;
	padding: 70px;
	text-align: center;
}

.cta_sub {
	color: #2E6B4E;
	font-weight: bold;
	font-size: 2rem;
}

.column_cta_box h2 {
	color: #1F4B3A;
	margin: 25px auto;
	font-size: 3.5rem;
}

.column_cta_box>p {
	font-size: 1.4rem;
	line-height: 2;
}

.cta_list_box {
	max-width: 210px;
	margin: auto;
}

.cta_list {
	margin: 16px auto;
	text-align: left;
}

.cta_list li {
	margin-bottom: 15px;
}


/* =====================================
   Responsive - 1024px
===================================== */
@media screen and (max-width: 1024px) {

    /* Hero */
    #column_kv {
        padding: 100px 0 75px;
    }

    .column_kv_wrap {
        grid-template-columns: minmax(0, 1fr) minmax(0, 42%);
        gap: 40px;
    }

    .column_title {
        font-size: 4.2rem;
        margin-bottom: 25px;
    }

    .column_subtitle {
        font-size: 1.3rem;
        margin-bottom: 15px;
    }

    /* Category */
    .column_category_filter {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 15px;
        max-width: 800px;
    }

    .column_category_button {
        padding: 20px 10px;
        font-size: 1.5rem;
    }

    /* Article */
    #column_article {
        padding: 80px 0 100px;
    }

    .column_article_grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 30px;
    }

    .column_article_body {
        min-height: 250px;
        padding: 25px;
    }

    /* Web Support */
    #column_support {
        padding: 80px 0;
    }

    .column_support_inner {
        grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
        gap: 40px;
    }

    .column_support_heading {
        padding-right: 0;
    }

    .column_support_heading h2 {
        font-size: 2.8rem;
    }

    .column_support_text {
        padding-left: 30px;
    }

    .column_support_button {
        min-width: 0;
        max-width: 100%;
    }

    /* CTA */
    #column_cta {
        padding: 80px 0;
    }

    .column_cta_box {
        padding: 55px 45px;
    }

    .column_cta_box h2 {
        font-size: 3rem;
    }
}


/* =====================================
   Responsive - 768px
===================================== */
@media screen and (max-width: 768px) {

    /* Hero */
    #column_kv {
        padding: 80px 0 60px;
    }

    .column_kv_wrap {
        grid-template-columns: minmax(0, 1fr);
        gap: 35px;
    }

    .column_kv_text {
        padding-bottom: 0;
        text-align: center;
    }

    .column_title {
        font-size: 3.8rem;
        margin-bottom: 20px;
    }

    .column_subtitle {
        font-size: 1.3rem;
    }

    .column_lead {
        line-height: 1.9;
    }

    .column_kv_image {
        width: 100%;
        max-width: 550px;
        margin: 0 auto;
    }

    /* Breadcrumb */
    #breadcrumb {
        padding: 20px 0;
    }

    .breadcrumb_list {
        flex-wrap: wrap;
        gap: 8px;
        font-size: 1.2rem;
        line-height: 1.8;
    }

    .breadcrumb_list li:not(:last-child)::after {
        margin-left: 8px;
    }

    /* Common Section */
    .column_section_title {
        font-size: 2.3rem;
    }

    .column_section_heading {
        margin-bottom: 35px;
    }

    .section_lead {
        margin-bottom: 40px;
    }

    /* Category */
    .column_category_filter {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 12px;
    }

    .column_category_button {
        padding: 18px 10px;
        font-size: 1.4rem;
        border-radius: 10px;
    }

    .column_category_button span {
        font-size: 1rem;
        margin-bottom: 5px;
    }

    /* Article */
    #column_article {
        padding: 70px 0 80px;
    }

    .column_article_heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 15px;
        margin-bottom: 35px;
    }

    .column_article_grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 20px;
    }

    .column_article_body {
        min-height: 0;
        padding: 20px;
    }

    .column_article_body h3 {
        font-size: 1.6rem;
        line-height: 1.6;
    }

    .column_article_body p {
        margin-top: 12px;
        font-size: 1.2rem;
        line-height: 1.8;
    }

    .column_article_card {
        border-radius: 12px;
    }

    /* Web Support */
    #column_support {
        padding: 70px 0;
    }

    .column_support_inner {
        grid-template-columns: minmax(0, 1fr);
        gap: 30px;
    }

    .column_support_heading {
        text-align: center;
    }

    .column_support_heading .column_section_label {
        text-align: center;
    }

    .column_support_heading h2 {
        font-size: 2.6rem;
        line-height: 1.5;
    }

    .column_support_text {
        padding-left: 0;
        border-left: none;
        text-align: center;
    }

    .column_support_text p {
        font-size: 1.4rem;
        line-height: 1.9;
    }

    .column_support_button {
        justify-content: center;
        gap: 25px;
        min-width: 0;
        padding: 16px 25px;
    }

    .column_support_button span {
        margin-left: 0;
    }

    /* CTA */
    #column_cta {
        padding: 70px 0;
    }

    .column_cta_box {
        padding: 45px 30px;
        border-radius: 15px;
    }

    .cta_sub {
        font-size: 1.7rem;
    }

    .column_cta_box h2 {
        font-size: 2.7rem;
        line-height: 1.5;
    }

    .column_cta_box > p {
        font-size: 1.3rem;
    }

    .cta_list_box {
        max-width: 210px;
    }
}


/* =====================================
   Responsive - 480px
===================================== */
@media screen and (max-width: 480px) {

    /* Hero */
    #column_kv {
        padding: 60px 0 45px;
    }

    .column_kv_wrap {
        gap: 25px;
    }

    .column_subtitle {
        font-size: 1.2rem;
        margin-bottom: 12px;
        line-height: 1.7;
    }

    .column_title {
        font-size: 3.2rem;
        line-height: 1.35;
        margin-bottom: 18px;
    }

    .column_lead {
        font-size: 1.3rem;
        line-height: 1.9;
    }

    .column_kv_image {
        max-width: 100%;
    }

    /* Breadcrumb */
    #breadcrumb {
        padding: 15px 0;
    }

    .breadcrumb_list {
        gap: 6px;
        font-size: 1.1rem;
    }

    .breadcrumb_list li:not(:last-child)::after {
        margin-left: 6px;
    }

    /* Common Section */
    .column_section_label {
        font-size: 1rem;
        margin-bottom: 8px;
    }

    .column_section_title {
        font-size: 2.1rem;
        line-height: 1.5;
    }

    .column_section_heading {
        margin-bottom: 30px;
    }

    .section_lead {
        font-size: 1.3rem;
        line-height: 1.9;
        margin-bottom: 30px;
    }

    /* Category */
    .column_category_filter {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
    }

    .column_category_button {
        min-width: 0;
        padding: 16px 8px;
        font-size: 1.3rem;
        line-height: 1.5;
        border-radius: 8px;
        overflow-wrap: anywhere;
    }

    .column_category_button span {
        font-size: 0.9rem;
        margin-bottom: 5px;
    }

    .column_category_button:hover {
        transform: none;
    }

    /* Article */
    #column_article {
        padding: 55px 0 65px;
    }

    .column_article_heading {
        gap: 10px;
        margin-bottom: 25px;
    }

    .column_article_grid {
        grid-template-columns: minmax(0, 1fr);
        gap: 25px;
    }

    .column_article_card {
        border-radius: 12px;
    }

    .column_article_card:hover {
        transform: none;
    }

    .column_article_image {
        aspect-ratio: 16 / 9;
    }

    .column_article_body {
        min-height: 0;
        padding: 20px 18px 25px;
    }

    .column_article_body h3 {
        font-size: 1.7rem;
        line-height: 1.6;
    }

    .column_article_body p {
        margin-top: 12px;
        font-size: 1.3rem;
        line-height: 1.85;
    }

    .column_article_empty {
        padding: 45px 15px;
    }

    /* Web Support */
    #column_support {
        padding: 60px 0;
    }

    .column_support_inner {
        gap: 25px;
    }

    .column_support_heading h2 {
        font-size: 2.3rem;
        line-height: 1.55;
    }

    .column_support_text p {
        margin-bottom: 15px;
        font-size: 1.3rem;
        line-height: 1.9;
    }

    .column_support_button {
        width: 100%;
        max-width: 360px;
        min-width: 0;
        justify-content: space-between;
        padding: 16px 20px;
        font-size: 1.3rem;
        box-sizing: border-box;
    }

    .column_support_button span {
        font-size: 1.5rem;
    }

    /* CTA */
    #column_cta {
        padding: 55px 0;
    }

    .column_cta_box {
        padding: 35px 20px;
        border-radius: 12px;
    }

    .cta_sub {
        font-size: 1.5rem;
        line-height: 1.6;
    }

    .column_cta_box h2 {
        margin: 20px auto;
        font-size: 2.3rem;
        line-height: 1.5;
    }

    .column_cta_box > p {
        font-size: 1.3rem;
        line-height: 1.9;
    }

    .cta_list_box {
        max-width: 210px;
    }

    .cta_list {
        margin: 15px auto;
    }

    .cta_list li {
        margin-bottom: 12px;
        font-size: 1.3rem;
        line-height: 1.7;
    }
}


/* =====================================
   Common Responsive Safety
===================================== */
.column_page,
.column_kv_wrap,
.column_article_grid,
.column_support_inner,
.column_cta_box {
    min-width: 0;
}

.column_page img {
    max-width: 100%;
    height: auto;
}

.column_page * {
    box-sizing: border-box;
}

@media (prefers-reduced-motion: reduce) {
    .column_page a,
    .column_article_card,
    .column_article_image img,
    .column_category_button {
        transition: none;
    }
}