@charset "UTF-8";

:root {
    --color-primary:    #030213;
    --color-secondary:  #717182;
    --color-muted:      #ececf0;
    --color-accent:     #e9ebef;
    --color-border:     rgba(0, 0, 0, 0.1);
    --color-bg:         #ffffff;
    --font-sans: 'BIZ UDPGothic', 'BIZ UDGothic', 'YuGothic', 'Yu Gothic', '游ゴシック体', sans-serif;
    --header-h: 64px;
    --content-w: 720px;
}

/* Reset / Base
---------------------------------------------------------------------------*/
html {
    font-size: 62.5%;
    background: var(--color-bg);
    height: 100%;
    overflow-x: hidden;
}

body {
    font-family: var(--font-sans);
    color: var(--color-primary);
    text-size-adjust: 100%;
    overflow-x: hidden;
    background: var(--color-bg);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

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

p {
    font-size: 1.5rem;
    line-height: 2.4em;
    letter-spacing: .05em;
    font-feature-settings: "pkna";
    text-align: justify;
}

p.article_p { letter-spacing: .05em; }

p.article_p span.caption {
    display: block;
    margin-top: 5px;
    font-size: 1.5rem;
    line-height: 1.5em;
}

a {
    color: inherit;
    text-decoration: none;
    transition: opacity .2s ease;
}

a:hover { opacity: .5; }

a.link {
    border-bottom: solid 1px var(--color-primary);
    padding-bottom: 2px;
}

::selection {
    background: rgba(3,2,19,.08);
    color: var(--color-primary);
}

.clearfix:after { content: ""; display: block; clear: both; }
li { list-style: none; }

.pc_none { display: none; }

@media (max-width: 740px) {
    p { font-size: 1.3rem; line-height: 2em; }
    .pc_none { display: block; }
    .sp_none { display: none; }
}


/* ============================================================
   HEADER  — horizontal bar matching plusw.co.jp
   ============================================================ */

#site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-h);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    z-index: 5000;
    display: flex;
    align-items: center;
}

.hd-inner {
    width: 100%;
    max-width: 1360px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    gap: 40px;
}

/* Logo */
.hd-logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    opacity: 1;
    flex-shrink: 0;
    transition: opacity .2s;
}

.hd-logo a:hover { opacity: .5; }

.hd-logo img {
    height: 24px;
    width: auto;
    display: block;
}

/* Desktop nav */
.hd-nav {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 36px;
    margin-left: 48px;
}

.hd-nav a {
    font-size: 1.2rem;
    letter-spacing: .1em;
    font-weight: 400;
    color: var(--color-primary);
    white-space: nowrap;
    opacity: 1;
    transition: opacity .2s;
}

.hd-nav a:hover { opacity: .4; }
.hd-nav a.active { font-weight: 700; }

/* Language button (globe + EN) */
.hd-lang-btn {
    display: flex;
    align-items: center;
    gap: 5px;
    border: 1px solid rgba(0,0,0,0.25);
    border-radius: 20px;
    padding: 5px 14px 5px 10px;
    font-size: 1.2rem;
    letter-spacing: .08em;
    color: var(--color-primary);
    flex-shrink: 0;
    opacity: 1;
    transition: opacity .2s;
    margin-left: auto;
}

.hd-lang-btn:hover { opacity: .5; }

.hd-globe {
    display: block;
    flex-shrink: 0;
}

/* Hamburger (SP) */
.hd-burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 28px;
    height: 28px;
    cursor: pointer;
    margin-left: auto;
}

.hd-burger span {
    display: block;
    width: 100%;
    height: 1px;
    background: var(--color-primary);
    transition: transform .3s, opacity .3s;
}

/* SP drawer */
#sp-drawer {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: var(--color-bg);
    z-index: 6000;
    overflow-y: auto;
    padding: 80px 40px 40px;
}

#sp-drawer.open { display: block; }

.sp-drawer-close {
    position: absolute;
    top: 20px; right: 28px;
    font-size: 2.8rem;
    cursor: pointer;
    color: var(--color-primary);
    line-height: 1;
    background: none;
    border: none;
}

#sp-drawer ul { list-style: none; }
#sp-drawer ul li { border-bottom: 1px solid var(--color-border); }

#sp-drawer ul li a {
    display: block;
    padding: 18px 0;
    font-size: 1.5rem;
    letter-spacing: .1em;
    color: var(--color-primary);
    opacity: 1;
}

#sp-drawer ul li a:hover { opacity: .4; }

.sp-lang {
    display: flex;
    gap: 16px;
    margin-top: 32px;
    font-size: 1.3rem;
}


@media (max-width: 900px) {
    .hd-nav { display: none; }
    .hd-lang-btn { display: none; }
    .hd-burger { display: flex; }
    .hd-inner { gap: 0; }
}

@media (max-width: 480px) {
    .hd-inner { padding: 0 20px; }
}


/* ============================================================
   PAGE BODY OFFSET
   ============================================================ */

body { padding-top: var(--header-h); }

/* Sticky footer — main content and legacy wrapper both grow to fill space */
main,
#wrapper {
    flex: 1;
}


/* ============================================================
   NEWS INDEX — シンプル縦リスト
   ============================================================ */

.ni-hero {
    text-align: center;
    padding: 80px 20px 60px;
    border-bottom: 1px solid var(--color-border);
}

.ni-hero h1 {
    font-size: 4.8rem;
    font-weight: 700;
    letter-spacing: .04em;
    line-height: 1;
    color: var(--color-primary);
    margin-bottom: 10px;
}

.ni-hero p {
    font-size: 1.3rem;
    letter-spacing: .1em;
    color: var(--color-secondary);
    text-align: center;
    line-height: 1;
}

/* List wrapper */
.ni-list {
    max-width: var(--content-w);
    margin: 0 auto;
    padding: 0 20px 120px;
}

/* Each row */
.ni-item {
    border-bottom: 1px solid var(--color-border);
}

.ni-item a {
    display: block;
    padding: 28px 0;
    opacity: 1;
    transition: opacity .2s;
}

.ni-item a:hover { opacity: .5; }

.ni-date {
    display: block;
    font-size: 1.2rem;
    letter-spacing: .08em;
    color: var(--color-secondary);
    margin-bottom: 6px;
    line-height: 1;
}

.ni-title {
    font-size: 1.5rem;
    line-height: 1.75em;
    letter-spacing: .03em;
    color: var(--color-primary);
    text-align: left;
}

@media (max-width: 740px) {
    .ni-hero { padding: 60px 20px 40px; }
    .ni-hero h1 { font-size: 3.6rem; }
    .ni-list { padding-bottom: 80px; }
    .ni-item a { padding: 22px 0; }
    .ni-title { font-size: 1.4rem; }
}


/* ============================================================
   ARTICLE PAGE
   ============================================================ */

.article-wrap {
    max-width: var(--content-w);
    margin: 0 auto;
    padding: 60px 20px 120px;
}

/* Back link */
.article-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 1.2rem;
    letter-spacing: .06em;
    color: var(--color-secondary);
    margin-bottom: 48px;
    opacity: 1;
    transition: opacity .2s;
}

.article-back:hover { opacity: .5; }

.article-back::before {
    content: "";
    display: inline-block;
    width: 20px;
    height: 1px;
    background: currentColor;
    vertical-align: middle;
}

/* Article header */
.art-head {
    margin-bottom: 56px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--color-border);
}

.art-date {
    display: block;
    font-size: 1.2rem;
    letter-spacing: .08em;
    color: var(--color-secondary);
    margin-bottom: 16px;
    line-height: 1;
}

.art-title {
    font-size: 2.6rem;
    font-weight: 700;
    line-height: 1.6em;
    letter-spacing: .04em;
    color: var(--color-primary);
}

.art-subtitle {
    margin-top: 14px;
    font-size: 1.4rem;
    line-height: 1.6em;
    letter-spacing: .04em;
    color: var(--color-secondary);
}

/* Article body */
.art-body p.article_p {
    font-size: 1.5rem;
    line-height: 2.2em;
    letter-spacing: .04em;
    margin-bottom: 28px;
    color: var(--color-primary);
}

.art-body h4.news_subhead {
    font-size: 1.7rem;
    font-weight: 700;
    line-height: 1.5em;
    letter-spacing: .06em;
    margin: 56px 0 20px;
    padding: 0 0 12px;
    border-bottom: 2px solid var(--color-primary);
    color: var(--color-primary);
}

.art-body img.news_ph {
    width: 100%;
    height: auto;
    display: block;
    margin-bottom: 8px;
}

.art-body p.ph_caption {
    font-size: 1.2rem;
    line-height: 1.5em;
    color: var(--color-secondary);
    margin-bottom: 28px;
}

.art-body .news_flex {
    display: flex;
    gap: 24px;
    margin-bottom: 40px;
}

.art-body .news_flex_item {
    flex: 1;
}

@media (max-width: 740px) {
    .art-body .news_flex { flex-direction: column; }
    .art-title { font-size: 2rem; }
}

/* article_p last child no margin */
.art-body p.article_p:last-child { margin-bottom: 0; }


/* ============================================================
   FOOTER CONTACT  (shared)
   ============================================================ */

#footer_contact {
    display: flex;
    width: 100%;
    background: var(--color-muted);
    border-top: 1px solid var(--color-border);
}

#footer_contact a.box_link {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 56px 60px;
    opacity: 1;
    transition: opacity .2s;
    gap: 20px;
}

#footer_contact a.box_link:hover { opacity: .7; }

#footer_contact .line {
    width: 1px;
    background: var(--color-border);
    align-self: stretch;
}

.footer_contact_title {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: .06em;
    line-height: 1.2;
}

.footer_contact_text {
    font-size: 1.3rem;
    color: var(--color-secondary);
    letter-spacing: .04em;
    margin-top: 8px;
}

.fc-arrow {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border: 1px solid rgba(3,2,19,.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--color-primary);
    transition: background .2s, color .2s;
}

#footer_contact a.box_link:hover .fc-arrow {
    background: var(--color-primary);
    color: #fff;
}

@media (max-width: 740px) {
    #footer_contact { flex-direction: column; }
    #footer_contact a.box_link { padding: 40px 24px; }
    #footer_contact .line { width: 100%; height: 1px; }
}


/* ============================================================
   FOOTER
   ============================================================ */

#site-footer {
    background: var(--color-primary);
    color: #fff;
    padding: 64px 0 0;
}

.ft-inner {
    max-width: 1360px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 80px;
    padding-bottom: 60px;
}

/* Left: logo + address */
.ft-left { flex-shrink: 0; }

.ft-logo-img {
    height: 24px;
    width: auto;
    display: block;
    margin-bottom: 20px;
    filter: brightness(0) invert(1);
}

.ft-company {
    font-size: 1.4rem;
    color: #fff;
    letter-spacing: .04em;
    line-height: 1;
    margin-bottom: 12px;
}

.ft-address {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.55);
    letter-spacing: .03em;
    line-height: 1.9em;
    font-style: normal;
}

/* Right: nav 3-column */
.ft-nav {
    display: flex;
    gap: 60px;
}

.ft-nav-col {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.ft-nav-col a {
    font-size: 1.2rem;
    letter-spacing: .1em;
    color: rgba(255,255,255,0.8);
    white-space: nowrap;
    opacity: 1;
    transition: opacity .2s;
}

.ft-nav-col a:hover { opacity: .45; }

/* Bottom: privacy + divider + copyright */
.ft-bottom {
    max-width: 1360px;
    margin: 0 auto;
    padding: 0 40px 40px;
}

.ft-privacy {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.ft-privacy a {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.55);
    letter-spacing: .03em;
    opacity: 1;
    transition: opacity .2s;
}

.ft-privacy a:hover { opacity: .5; }

.ft-divider {
    width: 100%;
    height: 1px;
    background: rgba(255,255,255,0.15);
    margin-bottom: 24px;
}

.ft-copy {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.4);
    letter-spacing: .04em;
}

@media (max-width: 900px) {
    .ft-inner {
        flex-direction: column;
        gap: 48px;
        padding-bottom: 48px;
    }
    .ft-nav { gap: 40px; }
}

@media (max-width: 480px) {
    .ft-inner { padding: 0 24px; padding-bottom: 40px; }
    .ft-bottom { padding: 0 24px 32px; }
    .ft-privacy { gap: 20px; }
    .ft-nav { flex-wrap: wrap; gap: 32px; }
}


/* ============================================================
   LEGACY: article pages still use old HTML structure
   — these ensure old markup renders correctly
   ============================================================ */

/* Wrapper used in article pages */
#wrapper {
    position: relative;
    max-width: 100%;
}

/* Old header hidden on article pages (replaced by #site-header) */
header.clearfix {
    display: none;
}

/* Old footer hidden */
footer#footer {
    display: none;
}

/* section_1 → article wrap */
.section_1 {
    max-width: var(--content-w);
    margin: 0 auto;
    padding: 60px 20px 80px;
}

.section_1 .section_title {
    margin-bottom: 48px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--color-border);
}

.section_1 p.news_date {
    display: block;
    font-size: 1.2rem;
    letter-spacing: .08em;
    color: var(--color-secondary);
    margin-bottom: 14px;
    line-height: 1;
}

.section_1 p.news_title {
    font-size: 2.4rem;
    font-weight: 700;
    line-height: 1.6em;
    letter-spacing: .04em;
    color: var(--color-primary);
}

.section_1 p.news_sub_title {
    margin-top: 12px;
    font-size: 1.4rem;
    line-height: 1.6em;
    color: var(--color-secondary);
}

.section_1 p.article_p {
    font-size: 1.5rem;
    line-height: 2.2em;
    letter-spacing: .04em;
    margin-bottom: 28px;
    color: var(--color-primary);
}

.section_1 p.article_p:last-child { margin-bottom: 0; }

.section_1 h4.news_subhead {
    font-size: 1.7rem;
    font-weight: 700;
    line-height: 1.5em;
    letter-spacing: .06em;
    margin: 56px 0 20px;
    padding: 0 0 12px;
    border-bottom: 2px solid var(--color-primary);
    color: var(--color-primary);
}

.section_1 img.news_ph {
    width: 100%;
    height: auto;
    display: block;
    margin-bottom: 8px;
}

.section_1 p.ph_caption {
    font-size: 1.2rem;
    color: var(--color-secondary);
    margin-bottom: 28px;
}

.section_1 .news_flex {
    display: flex;
    gap: 24px;
    margin-bottom: 40px;
}

.section_1 .news_flex_item { flex: 1; }

.section_1 ul.article_list,
.section_1 ul.article_list_num {
    font-size: 1.5rem;
    line-height: 2.4em;
    letter-spacing: .05em;
    margin: 0 0 28px;
}

.section_1 ul.article_list li {
    padding-left: 14px;
    position: relative;
}

.section_1 ul.article_list li::before {
    content: "·";
    position: absolute;
    left: 2px;
}

.section_1 ul.article_list_num li {
    list-style: decimal inside;
}

/* article_back link (added by sed) */
.article_back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 1.2rem;
    letter-spacing: .06em;
    color: var(--color-secondary);
    margin-bottom: 32px;
    opacity: 1;
    transition: opacity .2s;
}

.article_back:hover { opacity: .5; }

.article_back::before {
    content: "";
    display: inline-block;
    width: 20px;
    height: 1px;
    background: currentColor;
    vertical-align: middle;
}

/* footer_contact in article pages */
#footer_contact .footer_contact_inner {
    flex: 1;
}

#footer_contact .circle_button_gr,
#footer_contact .circle_button_arc,
#footer_contact .circle_button_arrow {
    display: none;
}

/* sub_top for article pages */
#sub_top { display: none; }

/* scroll_down hidden */
#scroll_down, #scroll_down_sub { display: none; }

/* bg elements hidden */
#bg_grain, #bg_plus, .bg_ball { display: none; }

@media (max-width: 740px) {
    .section_1 {
        padding: 40px 20px 60px;
    }
    .section_1 p.news_title { font-size: 1.9rem; }
    .section_1 .news_flex { flex-direction: column; }
}